HomeMy WebLinkAboutBOARD STANDING COMMITTEES - 12142020 - TWIC Agenda PktTRANSPORTATION,
WATER &
INFRASTRUCTURE
COMMITTEE
December 14, 2020
9:00 A.M.
1025 Escobar Street, Room TBA, Martinez **
**Meeting Remotely Until Further Notice**
To slow the spread of COVID-19, the Health Officer’s
Shelter Order of December 4, 2020, prevents
public gatherings (Health Officer Order).
In lieu of a public gathering, the Transportation,
Water & Infrastructure meeting will be available
via remote access per
Governor’s Executive
Order N29-20.
Supervisor Candace Andersen, Chair
Supervisor Karen Mitchoff, Vice Chair
Agenda
Items:
Items may be taken out of order based on the business of the day and preference of
the Committee. Persons who wish to address the TWI Committee during public
comment or with respect to an item that is on the agenda may submit public
comments before or during the meeting by email, voicemail or online participation
as described below:
1)Email to transportation@dcd.cccounty.us In the subject line, please include
"TWIC"and enter the agenda item number and description.
2)Voicemail at (925) 674-7833. The caller should start the message by stating
“TWIC public comments – not on the agenda” or “TWIC public comments –
agenda item #”, followed by the caller’s name and comments.
3)To participate in the meeting please click this link:
https://cccounty-us.zoom.us/j/83302254717
Request to speak by using the "raise hand" function. Meeting ID: 833 0225 4717
4)To participate directly in the meeting by phone call: (USA) 888-278-0254 Toll
free or (USA) 214-765-0478 US Toll and enter conference code: 198675 and
request to speak by dialing #2
*Commenters will be limited to three (3) minutes each;
*Comments submitted by email or voicemail will be included in the record of
the meeting but will not be read or played along during the meeting.
Transportation, Water, and Infrastructure Committee Agenda
1.Introductions
2.Administrative Items, if applicable. (John Cunningham, Department of Conservation
and Development)
3.Public comment on any item under the jurisdiction of the Committee and not on this
agenda (speakers may be limited to three minutes).
4.REVIEW record of meeting for November 9, 2020,Transportation, Water and
Infrastructure Committee Meeting. This record was prepared pursuant to the Better
Government Ordinance 95-6, Article 25-205 (d) of the Contra Costa County Ordinance
Code. Any handouts or printed copies of testimony distributed at the meeting will be
attached to this meeting record. (John Cunningham, Department of Conservation and
Development).
5.RECEIVE the Report on PG&E Coordination with Cities and Contra Costa
County for Street Light Maintenance and DIRECT county staff on actions to
secure revisions to the Letter of Understanding (LOU) for the maintenance of
PG&E streetlights in Contra Costa County and MONITOR its implementation by
PG&E. (Rochelle Johnson, Department of Public Works)
6.RECEIVE annual update on the County’s IPM Program from the IPM
Coordinator & take ACTION as appropriate. (Wade Finlinson, IPM Coordinator)
7.Report on the outcome of the Hazardous Materials Commodity Flow Study with
Special Focus on Flooding and Sea Level Rise. (Ellen Dempsey, Matt Kaufmann,
PWD)
8.CONSIDER report on Local, State, Regional, and Federal Transportation
Related Legislative Issues and take ACTION as appropriate. (John Cunningham,
Department of Conservation and Development)
9.RECEIVE Communication, News, Miscellaneous Items of Interest to the
Committee and DIRECT staff as appropriate. (John Cunningham, Department of
Conservation and Development)
10.The next remote meeting is tentatively scheduled for February 8, 2021. More information
forthcoming regarding remote information and exact meeting dates.
11.Adjourn
The Transportation, Water & Infrastructure Committee (TWIC) will provide reasonable
accommodations for persons with disabilities planning to attend TWIC meetings. Contact the staff
person listed below at least 72 hours before the meeting.
Any disclosable public records related to an open session item on a regular meeting agenda and
distributed by the County to a majority of members of the TWIC less than 96 hours prior to that
meeting are available for public inspection at the County Department of Conservation and
Development, 30 Muir Road, Martinez during normal business hours.
Public comment may be submitted via electronic mail on agenda items at least one full work day
prior to the published meeting time.
For Additional Information Contact:
John Cunningham, Committee Staff
Phone (925) 674-7833, Fax (925) 674-7250
john.cunningham@dcd.cccounty.us
Glossary of Acronyms, Abbreviations, and other Terms (in alphabetical order): Contra Costa County
has a policy of making limited use of acronyms, abbreviations, and industry-specific language in meetings of its
Board of Supervisors and Committees. Following is a list of commonly used abbreviations that may appear in
presentations and written materials at meetings of the Transportation, Water and Infrastructure Committee:
AB Assembly Bill
ABAG Association of Bay Area Governments
ACA Assembly Constitutional Amendment
ADA Americans with Disabilities Act of 1990
ALUC Airport Land Use Commission
AOB Area of Benefit
BAAQMD Bay Area Air Quality Management District
BART Bay Area Rapid Transit District
BATA Bay Area Toll Authority
BCDC Bay Conservation & Development Commission
BDCP Bay-Delta Conservation Plan
BGO Better Government Ordinance (Contra Costa County)
BOS Board of Supervisors
CALTRANS California Department of Transportation
CalWIN California Works Information Network
CalWORKS California Work Opportunity and Responsibility
to Kids
CAER Community Awareness Emergency Response
CAO County Administrative Officer or Office
CCTA Contra Costa Transportation Authority
CCWD Contra Costa Water District
CDBG Community Development Block Grant
CEQA California Environmental Quality Act
CFS Cubic Feet per Second (of water)
CPI Consumer Price Index
CSA County Service Area
CSAC California State Association of Counties
CTC California Transportation Commission
DCC Delta Counties Coalition
DCD Contra Costa County Dept. of Conservation & Development
DPC Delta Protection Commission
DSC Delta Stewardship Council
DWR California Department of Water Resources
EBMUD East Bay Municipal Utility District
EIR Environmental Impact Report (a state requirement)
EIS Environmental Impact Statement (a federal requirement)
EPA Environmental Protection Agency
FAA Federal Aviation Administration
FEMA Federal Emergency Management Agency
FTE Full Time Equivalent
FY Fiscal Year
GHAD Geologic Hazard Abatement District
GIS Geographic Information System
HBRR Highway Bridge Replacement and Rehabilitation
HOT High-Occupancy/Toll
HOV High-Occupancy-Vehicle
HSD Contra Costa County Health Services Department
HUD United States Department of Housing and Urban
Development
IPM Integrated Pest Management
ISO Industrial Safety Ordinance
JPA/JEPA Joint (Exercise of) Powers Authority or Agreement
Lamorinda Lafayette-Moraga-Orinda Area
LAFCo Local Agency Formation Commission
LCC League of California Cities
LTMS Long-Term Management Strategy
MAC Municipal Advisory Council
MAF Million Acre Feet (of water)
MBE Minority Business Enterprise
MOA Memorandum of Agreement
MOE Maintenance of Effort
MOU Memorandum of Understanding
MTC Metropolitan Transportation Commission
NACo National Association of Counties
NEPA National Environmental Protection Act
OES-EOC Office of Emergency Services-Emergency
Operations Center
PDA Priority Development Area
PWD Contra Costa County Public Works Department
RCRC Regional Council of Rural Counties
RDA Redevelopment Agency or Area
RFI Request For Information
RFP Request For Proposals
RFQ Request For Qualifications
SB Senate Bill
SBE Small Business Enterprise
SR2S Safe Routes to Schools
STIP State Transportation Improvement Program
SWAT Southwest Area Transportation Committee
TRANSPAC Transportation Partnership & Cooperation (Central)
TRANSPLAN Transportation Planning Committee (East County)
TWIC Transportation, Water and Infrastructure Committee
USACE United States Army Corps of Engineers
WBE Women-Owned Business Enterprise
WCCTAC West Contra Costa Transportation Advisory
Committee
WETA Water Emergency Transportation Authority
WRDA Water Resources Development Act
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 2.
Meeting Date:12/14/2020
Subject:Administrative Items, if applicable.
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE
COMMITTEE,
Department:Conservation & Development
Referral No.: N/A
Referral Name: N/A
Presenter: John Cunningham, DCD Contact: John Cunningham
(925)674-7833
Referral History:
This is an Administrative Item of the Committee.
Referral Update:
Staff will review any items related to the conduct of Committee business.
Recommendation(s)/Next Step(s):
CONSIDER Administrative items and Take ACTION as appropriate.
Fiscal Impact (if any):
N/A
Attachments
No file(s) attached.
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 4.
Meeting Date:12/14/2020
Subject:REVIEW record of meeting for November 9, 2020, Transportation,
Water and Infrastructure Meeting.
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE
COMMITTEE,
Department:Conservation & Development
Referral No.: N/A
Referral Name: N/A
Presenter: John Cunningham, DCD Contact: John Cunningham
(925)674-7833
Referral History:
County Ordinance (Better Government Ordinance 95-6, Article 25-205, [d]) requires that each
County Body keep a record of its meetings. Though the record need not be verbatim, it must
accurately reflect the agenda and the decisions made in the meeting.
Referral Update:
Any handouts or printed copies of testimony distributed at the meeting will be attached to this
meeting record. Links to the agenda and minutes will be available at the TWI Committee web
page: http://www.cccounty.us/4327/Transportation-Water-Infrastructure
Recommendation(s)/Next Step(s):
Staff recommends approval of the attached Record of Action for the November 9, 2020,
Committee Meeting with any necessary corrections.
Fiscal Impact (if any):
N/A
Attachments
November TWIC Meeting Record
D R A F T
TRANSPORTATION, WATER & INFRASTRUCTURE
COMMITTEE
RECORD OF ACTION FOR
November 9, 2020
Supervisor Candace Andersen, Chair
Supervisor Karen Mitchoff , Vice Chair
Present: Candace Andersen, Chair
Karen Mitchoff, Vice Chair
Attendees:Robert Sarmiento, Mark Watts, Steve Kowalewski, Amalia Cunningham, Maureen
Toms
1.Introductions
2.CONSIDER Administrative items and Take ACTION as appropriate.
No items/action.
3.Public comment on any item under the jurisdiction of the Committee and not
on this agenda (speakers may be limited to three minutes).
No public speakers.
4.Staff recommends approval of the attached Record of Action for the October
12, 2020, Committee Meeting with any necessary corrections.
The Committee unanimously approved the meeting record.
5.RECEIVE update on the Northern Waterfront Short-Line Railroad Feasibility
Study, FORWARD the Study to the Board of Supervisors for acceptance or
other action, and DIRECT staff as appropriate.
The Committee RECEIVED the update on the Northern Waterfront
Short-Line Railroad Feasibility Study? and DIRECTED staff to bring the
Study to the full Board of Supervisors on consent.
6.CONSIDER report on Local, Regional, State, and Federal Transportation
6.CONSIDER report on Local, Regional, State, and Federal Transportation
Related Legislative Issues and take ACTION as appropriate.
The Committee RECEIVED the report from the County's legislative
advocate.
7.DISCUSS 2021 State and Federal Legislative Platform Development, REVISE
as appropriate, and RECOMMEND that the Board of Supervisors include the
revisions in the County's final 2021 State and Federal Legislative Platforms.
The Committee APPROVED the change (clarifications re: direct
subvention of bridge funding to local jurisdictions) to the County's
federal legislative platform.
8.The next meeting is currently scheduled for Monday, December 14, 2020.
9.Adjourn
For Additional Information Contact:
John Cunningham, Committee Staff
Phone (925) 674-7833, Fax (925) 674-7250
john.cunningham@dcd.cccounty.us
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 5.
Meeting Date:12/14/2020
Subject:REVIEW Letter of Understanding with PG&E.
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE COMMITTEE,
Department:Conservation & Development
Referral No.: 14
Referral Name: Monitor implementation of Letter of Understanding with PG&E for
maintenance of PG&E streetlights in Contra Costa County.
Presenter: Rochelle Johnson, PWD Contact: Rochelle Johnson, PWD
(925)313-2299
Referral History:
The Transportation, Water and Infrastructure Committee (TWIC) accepted the 2020 status report
regarding the coordination between Cities (Countywide) and PG&E on October 12, 2020.
Referral Update:
The TWI Comittee requested that Public Works management report annually on the status of
street light maintenance coordination efforts with PG&E. Management last reported to the TWIC
on October 12, 2020, regarding this item.
Background:
The Letter of Understanding (LOU) dated February 2008, between PG&E and the County, states
the commitment of PG&E for open communication, responsive service levels, and actions in
resolving issues related to street light performance. In 2018, Management reviewed the LOU in
an effort to verify improved service levels and to ensure that the LOU addressed the needs of the
Cities and Contra Costa County.
As a result of the feedback from the meeting convened on October 2, 2017, PG&E and Contra
Costa Public Works staff began updating the LOU to reflect the needs of the Cities and County,
addressing the type of support needed from PG&E Public Works staff drafted a document and
made it available to the cities for feedback. Once City feedback had been incorporated,
management provided the 2018 Draft LOU to PG&E management for review.
On August 20, 2018, Public Works staff met with PG&E to review the draft LOU at PG&E’s
request, to discuss the LOU, and to address standards of service identified in the revised LOU. At
the end of that meeting, an agreement had been reached. However, there were two (2) items that
PG&E management wanted to confirm could be accommodated by PG&E.
These items included:
• The provision of service credits for customers who are without service for a period of greater
than 14 days; and
• The provision of monthly reports by PG&E detailing power outages and knocked down street
light poles.
During the September 2018 report to TWIC, Public Works staff made TWIC aware of the LOU
status. Direction was provided from TWIC to place the revised LOU on the consent calendar once
confirmation was received from PG&E regarding the above noted items.
On May 23, 2019, Public Works staff were provided with a redlined version of the revised draft
LOU by PG&E. Public Works staff had been advised by PG&E that in light of recent catastrophic
events, PG&E management and legal had revisited the document and changed items that had
been previously agreed to.
On September 17, 2019, Public Works staff met and determined that the items of contention in
the redlined draft of the LOU included:
1. The LOU should designate a number of service days that a customer should expect a response
[Section 1];
2. Billing discrepancies should be resolved within two billing cycles [Section 5]; and
3. Agencies should be provided with a GIS map annually. [Section 6]
*Sections refers to placement in the LOU.
Public Works staff reached out to PG&E management to schedule a meeting to discuss and
resolve the outstanding issues. However, the meeting was cancelled by PG&E at the last minute
and there has not been a response since.
Following the 2019 report, TWIC advised Public Works staff to work with TWIC to draft a letter,
as there had not been a response from PG&E. As previous correspondence had not been
responded to, letter was sent to William D. Johnson, CEO and President of PG&E on March 11,
2020. Courtesy copies of the letter were sent to the Compliance and Public Policy Committee,
East Bay Government Relations, and all associated cities.
To date, there has not been written response from PG&E. However, on July 20, 2020, during a
Street Light Coordination meeting, Vic Baker, Senior Manager—Diablo Division, acknowledged
that communication had been delayed and would be forthcoming.
On November 4, 2020, TWIC met with Public Works staff and PG&E represented by Tom
Guarino, East Bay Public Affairs Team. At that meeting the three items listed above were
reviewed with an additional request for PG&E to provide notification to reporting agency when
repairs are complete.
Mr. Guarino made preliminary commitments, but stated that he needed to speak to PG&E front
line staff to determine the feasibility. On, November 17, 2020, Public Works staff spoke with Vic
Baker by phone. He noted that while he will be the signer on the LOU, Tom will be finalizing
negotiations. In addition, Mr. Baker conveyed that PG&E attorneys identify the LOU as an
agreement. As no other county in the state has such an agreement, it is the position of PG&E’s
counsel that the LOU should be terminated. Public Works staff reminded Mr. Baker that the LOU
has been in place since 2008 and that it has been a benefit to the cities and county. Mr. Baker
offered that PG&E should be able to accommodate items 1 and 2; however, item 3 is dependent
upon PG&E records being reviewed and updated annually. At this time, PG&E does not have an
annual schedule in place for inventory management.
On, December 1, 2020, Mr. Baker confirmed by phone that the LOU was currently under review
and he committed to finalizing the document.
The Cities have been discouraged by the delay and inquired if there is a consequence for PG&E’s
inaction. The lack of response from PG&E has impeded updated the LOU. The service needs of
the Cities and County are different now than they were in 2008. Not only is it imperative to
update the LOU to reflect current and projected service needs, but it is equally necessary that
PG&E continues to adhere to the language of the LOU.
At this time, Public Works staff is seeking further direction from the TWIC on next steps to move
the LOU process forward.
Recommendation(s)/Next Step(s):
RECEIVE this additional status report on the street light service coordination effort between
PG&E and the County Public Works Department and Cities for street light maintenance, and
DIRECT staff as appropriate.
Fiscal Impact (if any):
None. All costs for street lights are funded by County Service Area L-100 and Community
Facility District 2010-1.
Attachments
2021 PGE LOU Revision
@BCL@A8004051
NEW PROPOSED LOU
Street Light Service Level Commitment
To Contra Costa County
[2021]
PG&E is committed to delivering a high level of service to street light customers and providing
features which enhance community safety. To ensure a high level of responsiveness to street light
maintenance issues in Contra Costa County and the 19 cities , PG&E is committed to the following
(for street light facilities maintained by PG&E):
1) Reporting Street Light problems and tracking results
PG&E will continue to utilize its web based system where street light service requests and
problems can be reported via an on-line request form. PG&E is committed to im proving
communication during this resolution process. The link for reporting and checking the status of
street light outages is:
http://www.pge.com/en/myhome/servicerequests/streetlights/single/index.page
In addition, street light service requests can be reported through PG&E’s em ail address :
streetlighttrouble@pge.com. The workgroup that responds to these emails is the Streetlight
Maintenance Department (under Electric Dispatch and Scheduling).
Outages reports are acknowledged via automated email response when received, when case
numbers are assigned, and when the street light service request work is completed or resolved.
PG&E shall further develop the reporting and tracking system to allow customers to check on the
status of outages and repairs.
PG&E will provide a one (1) page process flow chart for the resolution process to county staff upon
availability. Upon the providing this process, PG&E will clarify if email or web based platforms are
preferred.
*Note that the customer will receive an automated reply and within five (5) days a tracking number
will be received
2) Responding to Street Light outages
a. Response to Reported Street Light Outages
PG&E will respond, assess , and complete repair of reported street light outages (burnouts -repairs
to lamp/fixture) within 14 days of being notified of the outage.
*Please note: based on various community preferences, decorative lamps can take longer to repair
due to parts availability.
b. Outages Resulting from Poles that are "Knocked Down"
Where a PG&E-owned or maintained street light pole is "knocked down” or where c omplex or
underground repairs are necessary, PG&E will provide immediate response to the "knock-down",
and will secure the site, and make the situation safe to the public prior to leaving the site. PG&E
will complete any remaining required repairs within 90 days. If PG&E, for any reason, will not be
able to complete repairs within 90 days PG&E will notify the customer and will provide an
estimated date of completion for repairs .
@BCL@A8004051
If PG&E should become aware of a knocked down pole by customer call or staff inspection, PG&E
will notify the County.
c. Monthly Report
PG&E will provide a monthly report to Contra Costa County which details the status of outages and
knocked down poles. This report should detail if the matter has been resolved or not. If the matter
has not been resolved at the time to the report, the report should include a proposed timeline and
resolution.
d. Repair Completion
Upon completion of repairs, PG&E will notify the party who reported the outage within 5 days.
e. Credit Adjustment
In the event that a customer is without service as a result of an inoperable street light beyond
fourteen (14) business days , the customer should contact their local customer relationship
manager who will complete a service credit request. Customer to supply PG&E with detail
information including confirmation the street light is inoperable, badge number (if available) and
location.
3) Requesting Street Lights and Shields Installation
PG&E will continue to utilize the Customer Connection Online web-based system where street
lights and shields installation can be reported via the on-line request form. The link for requesting
street lights and shields installation is: http://www.pge.com/cco. Shields may also be requested by
calling our Building & Restoration Service Center telephone number (1-877-743-7782).
PG&E will acknowledge these requests via automated email response when received by the New
Business Service Planning representative. PG&E will continue communication of the planning and
installation process status via email, provide an estimated date of completion, and inform the
customer of next steps , including approval, and installation. Upon receipt of new installation
applications , PG&E will contact the applicant within 1-3 business days to advise them of the result
and next steps.
Any contract information will be submitted via email or regular mail and any costs associated with
the planning and installation will be included in the contract. PG&E will allow 10 days to sign and
return contract to initiate the installation process.
The cost of installing any shield (front, back or cul-de-sac) will be forwarded to the customer and
included in the provisions of the associated contract.
4) Pole maintenance , replacement, painting, and cleaning
For street light poles that need painting, cleaning due to graffiti, or have rust staining, PG&E will
accommodate requests based on the demand of the community. All requests can be forwarded to
the email: streetlighttrouble@pge.com or by calling 1(800)743-5000. These services may include
time and materials costs at PG&Es expense.
PG&E will respond to an initial assessment of the request for street light graffiti removal within 14
days of being notified.
Upon notification of painting or rust abatement service need, PG&E will complete the service within
180 days.
@BCL@A8004051
In the event that there is not an established maintenance schedule, PG&E will provide information
to County staff pertaining to pole viability and associated replacement plans on an case by case
basis .
5) Reconciliation
PG&E will reconcile billing statements and inventory discrepancies on an annual basis or as
needed. All identified discrepancies will be resolved within four (4) billing cycles.
6) Annual Inventory Update
PG&E will make every effort to work with Contra Costa County and Cities to rectify inventory and
billing conflicts on an on-going basis to the satisfaction of the affected agency. This will include
providing the Cities and County with an annual inventory update in GIS format at no cost , subject
to Public Utility Commission (PUC) regulations .
7) On-going communication and reporting
Quarterly Coordination Meetings
As determined by the survey of participating Cities in 2015, PG&E will continue to participate in
quarterly Coordination Meetings. In preparation of these meetings, PG&E may be invited to
present evolving and new technologies, features, and services. PG&E will maintain open
communication and responsiveness in assisting the County to coordinate and plan for these
meetings.
TWIC Participation
PG&Es Public Relations representative, or a delegate will attend the annual Transportation Water
and Infrastructure (TWIC) meeting in October to join the County in providing an annual report on
coordination efforts.
8) Staffing Updates
To assist Contra Costa County staff and PG&E staff in facilitating communication, PG&E and
Contra Costa County will provide a list of key management representatives on an annual basis .
Additionally, both will provide an advisement of key staffing changes .
ITEMS FOR FUTURE CONSIDERATION
LED and Photocell Group Maintenance and Replacement Program
The life expectancy for LED street lights is approximately 20 years (with a warranty of 10 years)
and for photocells is 12 years. When the replacement of existing LED infrastructure occurs, PG&E
will work closely with Contra Costa County and the cities to provide information related to new
product choices selected for characteris tics related to improved energy efficiency and as
technology evolves, reduced glare and control of upward directed light as they become available
and are approved for use.
PG&E will replace LED street lights when notified as described above. PG&E will also perform
other maintenance work, such as testing and replacement of photocells (as required) and cleaning
of glassware, reflectors , or refractors. Any identified high pressure sodium vapor lamps will be
replaced with LED. Additionally, PG&E will provide to the County and the cities any cleaning
schedule available for glassware.
Invoice and Billing
For any billing changes to the existing inventory, the customer can call PG&E customer contact
center at 1-800-743-5000.
@BCL@A8004051
For any additions, removals or lamp size changes, customer can contact PG&E service planning at
1-877-743-7782 or submit request online at http://www.pge.com/cco.
PG&E will address changes to the inventory to not only simplify and reorganize the current
information—but to insure that new additions or removals are reflected in the billing
documentation.
###END###
This LOU is a good faith understanding between Contr a Costa County, representing the 19
included cities and PG&E.
Victor Baker Date
Senior Manager—Diablo Division
Pacific Gas and Electric Company (PG&E
@BCL@A8004051
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 6.
Meeting Date:12/14/2020
Subject:RECEIVE yearly update on the County’s IPM Program from the IPM
Coordinator & take ACTION as appropriate.
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE COMMITTEE,
Department:Conservation & Development
Referral No.: 9
Referral Name: Monitor the implementation of the Integrated Pest Management policy.
Presenter: Wade Finlinson, IPM Coordinator Contact: Wade Finlinson
(925)655-3214
Referral History:
The Transportation, Water, and Infrastructure Committee (TWIC) annually reviews the County’s
Integrated Pest Management (IPM) Program and monitors the implementation of the IPM Policy.
Referral Update:
The IPM Coordinator will provide a program update and seek strategic guidance from TWIC
pertaining to the following:
1. Current IPM Advisory Committee recommendations (pg. 4 of the 2020 Annual Report);
2. Outstanding recommendations from the 2018 and 2019 annual reports;
3. The proposed 2021 Work Plan priorities (pgs. 18-20 of the 2020 Annual Report); and
4. Any other related matter heretofore inadequately addressed.
Referenced materials include the 2020 IPM Advisory Committee Annual Report (which also
contains the 2021 Committee Work Plan), the Pesticide Use Summary Comparison table, a table
tracking the status of Committee recommendations since 2018, and a copy of the Public Works
transmittal memo detailing the proposed changes to the County Pesticide Use Posting and
Notification Policy.
Recommendation(s)/Next Step(s):
RECEIVE the 2020 Annual Report from the Integrated Pest Management Advisory Committee
and DIRECT staff as appropriate.
Fiscal Impact (if any):
None.
Attachments
1. 2020 IPM Advisory Ctte Annual Report
2. IPM Advisory Ctte Recommendations Tracking Table
3. 2020 Proposed Pesticide Use Posting & Notification Policy Rec from IPM Advisory Ctte to PWD
2020 Committee Roster
Executive Summary………………………...3
2020 Recommendations………………….4
IPM Committee Update…………………..5
Department Updates….…………………..8
IPM Coordinator Update……………….15
Pesticide Use Summary………………...16
Partial Record of Training……………...17
2021 Committee Work Plan….……….18
Table of Contents
2
Executive Summary
Work of the IPM Advisory Committee
The IPM Committee approved revisions to the Pesticide Use Posting and Notification
Policy with revised signage, and furthered initiatives that seek ways to better classify
risks associated with pest management practices. An exploration of which pilot projects
and external funding programs would best support the County IPM Policy was also
commenced during the year.
The Committee developed decision documentation regarding vegetation management at
the West County and Marsh Creek Detention Facilities. A 2019 review of glyphosate use
on County-owned land revealed that the two properties accounted for 56% of total
usage among all County operations. The IPM Committee initiated the process in January
and approved final versions of the documents in November.
That collaboration between the Office of the Sheriff, Public Works, and the IPM
Committee yielded recommendations featured on the next page. These present
potential starting points for a broader dialog on how to maximize the use of natural
assets at both facilities in a way that supplements the training and rehabilitative function
of the programs housed in each location and in similar sites throughout the County.
Pesticide Use Reduction by County Operations
Since 2000, County operations have reduced pesticide use by 95%. The use of “Bad
Actor” pesticides have decreased by 88% in that time. The Maintenance Division will
soon resume herbicide applications. They suspended the program in November 2018,
which is the main cause for the recent reduction. The entire Pesticide Use Summary can
be found at the IPM Program website. Pages 16-18 of this document contain graphs
depicting historic pesticide use.
Departmental IPM Programs
The COVID-19 Pandemic added a layer of complexity to a system already ridden with
obstacles relating to the balance of natural phenomena and operational needs. IPM
highlights from each department is listed below:
Agriculture
•purchased Trimble GPS units to map the invasive weeds they are tracking
Public Works
•Airports: acquired a new boom sprayer to be more efficient in the infield areas
•Maintenance Division: retained a consultant for herbicide recommendations in
place of the cancelled Vegetation Management Supervisor position
•Grounds/Special Districts: completed two landscape renovation projects
•Facilities: performed pest prevention inspections at the new Administration
Building and Emergency Operations Center
3
2020 Recommendations from the IPM Advisory Committee
Note: Unless otherwise indicated, these pertain to both the West County & Marsh Creek properties.
1.Redefine vegetation management practices that promote proactive strategies and clarify
accountability as it pertains to each site’s natural resources. Efforts should include:
a.Adjusting how funds pertaining to grounds maintenance are allocated. Proactive and
regenerative maintenance practices should be prioritized over corrective maintenance
requests. Personnel from the Office of the Sheriff and the Public Works Department
should engage in a dialog with the IPM Coordinator to determine what alterations could
be immediately implemented that would refine the business relationship as it pertains to
vegetation management.
b.Incorporating a vegetation monitoring protocol that documents periodic status updates
from onsite personnel to the Grounds Division. This may include sharing still
photographs and/or video from the security system on a routine basis that keeps
applicable County staff aware of current vegetation conditions.
c.Provision of supplemental training modules for all personnel, inmates, or volunteers who
may be involved with vegetation management decisions that cover the County
Integrated Pest Management Policy, these recommendations, and general safety
guidelines.
2.Initiate a dialog with adjacent property owners such as East Bay Regional Parks regarding both
properties and Save Mount Diablo at the Marsh Creek property to explore formal partnerships
that strengthen the mission of each agency. Also consider contracting for vegetation
management services in a manner consistent with the County IPM Policy.
3.Where chemical controls are required to maintain bare-earth objectives, prioritize applications
to reduce glyphosate dependence and continue to explore the feasibility of implementing
alternative tactics such as steam weeding, mulching, and competitive planting.
4.Foster mutually beneficial community partnerships that:
a.Allow County personnel to provide a higher level of service by focusing on core tasks,
and
b.Maximize balanced cooperation between organized labor, community-based
organizations, and employment training enterprises, and
c.Build on regional models that are financially sustainable and ecologically regenerative.
d.Facilitate collaborative landscape programming that allows every County-owned acre to
be a shining example of a restorative community asset.
5.The IPM Coordinator is encouraged to play an active role continuing this dialog with other
stakeholders in the County. These findings and additional site stewardship revelations at similar
rehabilitation properties in the County should be presented to the appropriate body or program
for further consideration. That may include the Office of Reentry and Justice, The Public
Protection Committee, The Community Corrections Partnership and its associated committees,
the Juvenile Justice Coordinating Council, or other relevant programs.
6.At the Marsh Creek Property, consider establishing a site stewardship fund that receives a
portion of fees charged to agencies for range usage or consider supporting the development of a
partner foundation to solicit supplemental vegetation management funding and to coordinate
volunteer efforts.
7.The Marsh Creek facility is encouraged to work with the IPM Coordinator to set up product
demonstrations of steam weeding systems, remote control slope mowers, and other related
machinery to prioritize which equipment procurements would be appropriate to incorporate
into the existing operation.
4
IPM Advisory Committee Update
The Committee and its subcommittees did not hold meetings between March 4th and July 15th. All
meetings since July 16th have been held virtually. Despite these challenges, the Committee still had a
productive year. The full Committee met 4 times, the Decision-Making Subcommittee had 5 meetings,
the Subcommittee on Grants & Pilots met twice, as did the Posting Task Force.
Three new members joined the Committee in 2020 and three members were reappointed. Susan
Captain began her second term of service the Public Member #1 Seat in January. Andrew Sutherland,
who previously served a term in the Public Member #2 Seat, was appointed to fill the Environmental
Organization Representative Seat representing the University of California Cooperative Extension.
Susan Heckly was reappointed to her third term representing the Fish and Wildlife Committee. Stephen
Prée began his first term in the Public Member #2 Seat in January as well. Amy Budahn was appointed
to the Public Member Alternate Seat in July and Michele Mancuso assumed the County Stormwater
Program Representative Seat which was previously occupied by Teri Rie.
During the meeting of the IPM Advisory Committee on January 16, 2020, the Committee chose to
temporarily reconvene the Posting Task Force to incorporate TWIC observations and to clarify other
components of the policy in order to promote uniformity between the policy, posting signage, and the
IPM Program website. The Task Force met on March 3rd and August 25th to discuss the proposed
revisions and voted to approve the revised posting policy. The full IPM Advisory Committee
unanimously approved the policy on September 17th.
5
During a planning meeting for the year, the Committee expressed an interest in reviewing what
pesticide classification systems are in place in neighboring public agencies. While there was not enough
interest to form a subcommittee on the topic, the Committee continues to pursue further insight at
their regular meetings.
In July, the IPM Coordinator gave an overview of the systems used by other jurisdictions in the Bay
Area. That discussion lead to a presentation of a new visualization tool for pesticide risk assessment in
the September meeting. Dr. Andrew Sutherland and Dr. Paul Jepson introduced the tool that may help
better understand chronic risks associated with pesticide use and increase the transparency of the
process for selecting pest management tactics.
This year, the Committee also received presentations from regional IPM partners. The Santa Clara
County IPM Program gave an overview of their Landscape Inventory and Operational Needs Assessment
in the July meeting. In September, the Committee heard from the East Bay Regional Parks IPM
Coordinator on several pursuits of common interest.
Activities
o Held five Subcommittee meetings during the year
o Had at least four of the six total Subcommittee members at each meeting
o Conducted research into alternative vegetation management tactics
o Received public input at each meeting
Accomplishments
o Decision Documentation for Vegetation Management at West County Detention Facility.
o Decision Documentation for Vegetation Management at Marsh Creek Range & Detention Facility.
o Referred further investigation and implementation of the ground squirrel pilot project involving
carbon monoxide and carbon dioxide injection to the IPM Subcommittee on Grants & Pilots.
o Initiated the development of decision documents for managing vegetation at the Juvenile
Detention Center, Orin Allen Youth Rehabilitation Facility, and the County Airports.
o County staff have been more involved than previous years due to remote meetings being more
accessible. The Subcommittee also successfully engaged with Departments that have not
traditionally been associated with the IPM Program, such as the Office of the Sheriff and
Probation Department
Challenges
o No meetings were held from March through July due to the COVID-19 Pandemic.
o The remote meeting format implemented since August limits the full engagement of
Subcommittee members and public attendees.
o Pandemic restrictions of County operations have dramatically reduced the amount of information
typically gathered from site visits and interactions with staff members.
Report of the IPM Decision-Making Subcommittee
6
Activities
o Held two Subcommittee meetings during the year
o At least five of the six Subcommittee members attended each meeting.
o Researched existing grant programs to determine potential fit
Accomplishments
o Hosted several subject matter experts who provided useful insights pertaining to ground squirrels
and setting up valid case studies to help monitor and manage them in an integrated program
o Worked to refine the scopes of potential pilot research projects
o Gained a better understanding of the County’s process for applying for and receiving grant funding
and identified multiple external funding sources
o Engaged regional experts from UC and other public agencies to collaborate on IPM pursuits
Challenges
o The first meeting was not held until August due to factors relating to the COVID-19 Pandemic.
o The remote meeting format limited the full engagement of Subcommittee members and public
attendees.
o With seven months passing between the original formation of the Subcommittee and its first
meetings, it was difficult to clearly define the broader objectives of the body
o County staff is spread thin, and it’s difficult to take on new IPM pilots and programs in the context
of backlogs in the delivery of other important services
Report of the IPM Grants & Pilots Subcommittee
Marsh Creek Dam
7
Department Update—Agriculture
The Agriculture Department office has been closed to the public since the middle of March. They were
still able to continue with their weed abatement efforts for the season. The Department contracted a
few new properties this year. John Muir Land Trust and the Geological Abatement Hazard District
parcels in Moraga are heavily infested with Artichoke thistle. The Department was able to obtain
noxious weed grants from the state. This funding allowed them to hire two new weed and vertebrate
technicians. The Department also purchased Trimble GPS units to map the invasive weeds they are
tracking. Weed and vertebrate technicians started about a month later than planned because of
COVID-19. This affected how much they were able to accomplish in regards to invasive weed
abatement.
The Department’s pest detection staff was most impacted by COVID-19 in their day-to-day activities.
Pest detection personnel are required to place traps in fruit trees usually in the backyards of private
residences. Shelter-in-place restrictions severely limited that option. The pest detection staff staggered
work hours to adjust to the reduced workload and allow for greater social distancing. The season was
started late and will end early because of the financial impact of COVID-19.
8
Department Update—Public Works: Airports
The Airport Operations Division completed their second year of managing vegetation without the
assistance of the Public Works Maintenance Division. Airport personnel now conduct all herbicide
applications at the Byron and Concord properties. Enhanced aviation protocols at each airport site
necessitate uninterrupted action to combat vegetal pest pressures. Problematic vegetation at these
unique locations can increase hazards associated with fires, visual obstructions, and incongruous
wildlife habitation. The IPM Coordinator will continue to work with Airport Operations to ensure all
training, application, and reporting protocols are refined to fit within the parameters of the County IPM
Policy.
The Division acquired a new boom sprayer this year in order to be more efficient in the infield areas.
They report that this equipment has helped reduce the amount of invasive growth in these sensitive
locations. Airport Safety Officers also rely on wide area mowers, brush cutters, flail mowers in addition
to string trimmers and other hand tools to abate weeds. One challenge faced this year was trying to
keep up on vegetation management while allocating staff to a major runway project.
9
Department Update—Public Works: Grounds/Special Districts
The Grounds Division was restricted to essential weed abatement during the earlier stages of the
pandemic. While this allowed them to catch up at many sites, other details like litter collection and
irrigation repairs were not completed during that time. Ongoing staffing shortages are exacerbated by
the hiring freeze.
Grounds has had to increasingly rely on contracted service providers and overtime labor to keep sites
from becoming unsafe. With the new Administration Building and Emergency Operations Center (EOC)
coming online, gardeners are concerned about not having the bandwidth to absorb the new
installations.
The Probation Department requested a landscape enhancement project earlier in the year at their
Training Center located behind Juvenile Hall. Grounds employees removed dead and overgrown
vegetation, updated the irrigation system, and incorporated new mulch and plant material to beautify
the site. From an IPM standpoint, the project incorporated cultural practices of mulching, competitive
planting, and irrigation precision intended to only water desirable species.
The Grounds Division completed a project funded by Benefit Zone 18 of the Countywide Landscaping
District on Pacheco Boulevard near Pacheco Manor. Large pine trees not suitable for such a narrow
planting strip and shrubs requiring regular shearing were replaced by Crepe myrtle trees and low-10
growing vegetation that is more conducive to the type of maintenance currently available. The trees
were threatening the structural integrity of the soundwall and cluttered the sidewalk, gutter, and street
with pine needles. The removed trees were chipped and used as weed prevention and soil building
elsewhere.
Regarding the District’s vertebrate pest program, their contracted trapper caught 4 voles and 30
gophers in various parks and common areas. No rodenticides are used on District property. Annual
herbicide use on these parcels are captured in the reports submitted by Grounds.
Planter Strip on Pacheco Boulevard Near Pacheco Manor
Before After
11
Department Update—Public Works: Maintenance Division
The Maintenance Division continues to provide essential services to customers. COVID-19 has
impacted the efficiency and the cost of how these services are delivered, and staff has adapted to the
changes. In addition to taking precautions such as wearing face coverings, social distancing, and proper
hygiene. Each staff member travels to work sites in separate vehicles unless a vehicle is large enough to
allow for proper social distancing. Training programs have also required adjustments.
Division personnel have provided COVID-19-related response, such as receiving/distribution of
emergency PPE supplies, making COVID-19 testing site signage, assisted in the setup of testing and
shelter sites, and assisted with the closing of parks and recreation facilities.
Mowing and grazing are the two primary methods currently being used to manage vegetation. It has
been two years since the Division has had qualified staff in place to use herbicides on roadsides and
flood control channels. They have retained a consultant to provide herbicide recommendations and are
in the process of filling vacant Vegetation Management Technician positions. The suspension of
herbicide use has created a backlog of work and an increased effort will be necessary to address
vegetation management needs. The charts below depict the percentage of which methods were used.
The one on the left is from the fiscal year that ended on June 30th of this year while the chart on the
right compares methods used five years earlier. It is important to note that while the change appears
to be good news from the standpoint of herbicide reduction, 500 fewer acres were treated in 2020 than
in 2015. Hazards associated with visual obstructions and wildfire risks have likely increased on
unmanaged properties throughout the County.
12
Department Update—Public Works: Facilities Services (Pestec)
Pandemic restrictions limited access to most of the County sites that Pestec services. Efforts have
focused primarily on the management of outdoor pests such as rodents, cockroaches, ants, and stinging
pests. Services have included IPM inspections, recommendations, insect bait & rodent trapping station
maintenance, and spot treatments for ants and stinging pests when necessary.
Contra Costa County Regional Medical Center also had restricted access. Entrances to the hospital
premises are only permitted when pest sightings are reported by staff. Pestec technicians are escorted
and required to wear eye protection and face masks.
Entrance to County detention facilities has been limited since early in the pandemic to reduce risk to
inmates. Currently, Pestec is restricted from entering dorms and has only been permitted entry to
address reported pest sightings. Eye protection and face masks are required to enter dorms. Exterior
services for inspection, monitoring, treatment, and reporting continue.
Pestec has reported 120 conditions conducive to pests between January and October of this year. Last
year, 175 conditions were reported. Recommendations for repair are submitted to Facilities Services
for correction. In some cases, the County contracts with Pestec for additional source controls including
pigeon and rodent exclusion. This year, Pestec installed pigeon exclusion netting at the San Pablo
Health Center and eliminated access points for rodents at Juvenile Hall in Martinez.
In early August, Pestec performed a detailed inspection of the new Administration Building during its
final stage of construction. Pest prevention recommendations were entered into a field punch list
report and submitted to Facilities Services. Follow up inspections during regular IPM service visits will
observe the status of the corrective recommendations.
New Administration Building
13
A similar inspection was completed at the new Emergency Operations Center. This proactive approach
encourages relatively simple strategies to ideally be implemented during the design and construction
process to limit the access of unwelcome invaders during the life of the facility. Inspired by a project
lead by the San Francisco Department of the Environment, Contra Costa County is encouraged to
incorporate as many concepts contained in Pest Prevention by Design as possible in all future building
projects and renovations.
This year, Pestec installed approximately 100 Bluetooth-enabled rodent management station trays
around various County facilities. These trays were incorporated into devices that Pestec has
retrofitted to serve as rodent trapping and insect baiting stations. The smart trays are designed to
connect to an application that the service technician uses to determine if a station needs service. These
are being tested to determine potential labor costs savings and monitor pest activity with more
precision. While this remote monitoring technology seems promising, further evaluation is needed to
determine if the practical benefit is worth the additional material cost. Additionally, the quality of the
device and specifically the single use battery may not be suitable for Countywide deployment.
Another highlight from the year includes the discovery of a point of access for various insects. Staff at
the Antioch Health Center noticed increasing signs of bugs in a conference room at the facility. The
Pestec team believed that
insects were coming from the
air vents above the tables. A
temporary air filter was placed
over the vents to monitor for
insect intrusion. The paper
filter was checked a week
later, and numerous insect
parts were found embedded
into the filter fibers. An
inspection of the air handler
on the roof found cracks in the
main air intake unit with
additional signs of insects
noticed in the damaged filters.
New Emergency Operations Center
14
IPM Coordinator Update
The IPM Coordinator was designated as a Disaster Service Worker assigned to the virtual COVID-19 call
center from March 15th to June 15th. He also worked with personnel from the Office of the Sheriff and
Public Works to gain a fuller understanding of the critical vegetation management function of the
detention facilities in West County and Marsh Creek in order to represent pertinent details to members
of the Committee and citizen advocates. Other highlights include coordinating the logistics of virtual
meetings and conducting outreach to relevant partners in moving closer to full Healthy Schools Act
compliance at Juvenile Hall and at the Orin Allen Youth Rehabilitation Facility (OAYRF).
Camino Diablo Near Brentwood
Other Notable Activities:
Met with the County Fish & Wildlife Committee to discuss the development of an invasive species brochure
Assisted Health, Housing and Homeless Services with their point-in-time count in January
Attended the Sustainability Exchange Steering Committee meeting on January 21st
Organized a Healthy Schools Act training and a product demonstration for a carbon dioxide injection device at
OAYRF on February 6th
Presented the 2019 Annual Report to TWIC on February 10th
Participated in the Contra Costa County Environmental Justice, Community Health, and Sustainability Virtual
Collaboration on June 3rd
Coordinated a Pest Prevention by Design inspection of the new Administration Building and Emergency
Operations Center on August 10th
Presented as part of an online Brown Bag Lunch Series sponsored by the California Department of Pesticide
Regulation on August 26th
Participated in a meeting of IPM coordinators from the other public agencies in the region as well as other
western states on October 16th
Helped organize and host a virtual field trip for nursing students enrolled in a community engagement class at
Cal State East Bay on October 22nd. Arranged presentations by the HazMat, Green Business, and Childhood
Lead Poisoning Prevention Programs, and the Contra Costa Mosquito & Vector Control Services District.
Participated in the Health and Nutrition Services Advisory Committee Meeting on October 27th.
Collaborated with Eden Housing, UC’s IPM Program, and Regional Asthma Management and Prevention
(RAMP) to initiate an IPM project targeting bed bugs and cockroaches at a Property in Martinez
Assembled and met virtually with a tentative project team to pursue a research grant to improve ground
squirrel monitoring and treatment near critical infrastructure. The team consists of County staff, UC
academics, and representatives from other public and private agencies.15
Since 2000, County operations have reduced pesticide use by 95%. The use of
“Bad Actor” pesticides have decreased by 88% in that time. The Maintenance
Division will soon resume herbicide applications. They suspended the program
in November 2018, which is the main cause for the recent reduction. The
entire Pesticide Use Summary can be found at the IPM Program website.
Pesticide Use Summary
Pesticide Use by Program
2010-2020
Rodenticide Use by County Operation
2010-2020
Ground Squirrel Damage on Trails End Path
Near Kubicek Detention Basin
Richmond Parkway
16
Covid-19 safety protocol and
reporting
Covid-19 disinfecting services training
Bell labs IQ rodent monitoring
system
Rodent management station
installation & management
procedures
Cockroach IPM in complex
environments
Bayer Technical trainer for ants and
cockroaches
UC IPM Pest insight webinar for ants,
wasps, outdoor cockroaches,
insecticide resistance for German
cockroach
Purdue Advanced Urban IPM, group
study
Inert Gas Injection (IGI)
demonstration at Orin Allen Youth
Rehabilitation facility & Healthy
Schools Act overview
Injury illness Prevention Program
training
Pestwest fly control with Dr. Stewart
Miller
EPA—Bed bugs in Multi-Family
Housing and Dorms (90-minute
webinar) 1/14
Child Care IPM Train-the-Trainer
Workshop sponsored by the UCSF
School of Nursing and the CA Dept. of
Pesticide Regulation
Cal-IPC Non-chemical weed control
techniques
Integrated Germ Management
training
211 Resource Database training
From Integrated Pest Management to
Integrated Pest and Pollinator
Management Webinar
Contra Costa County's Environmental
Justice, Community Health, and
Sustainability Virtual Collaboration
Society for Range Management CAL-
PAC Region Spring Meeting
CDFA Webinar for National Pollinator
Week: California’s Efforts to Restore
and Enhance Their Populations
Weed management online training for
volunteer programs
State Water Board’s stakeholder meeting
on Statewide Grazing Guidance
California Native Grassland Association's
13th Annual and 1st Online Field Day at
Hedgerow Farms
EPA—Addressing Disease Mitigation in
Schools, Daycare Centers and Universities
with Sanitizers and Disinfectants
40th Annual E.F. Schumacher Lectures:
Land as a Commons: Building the New
Economy
Sustainable Management of California’s
Fire Prone Landscapes: Using Grazing to
Help Keep Communities Safe
Pestec presented the structural pest
management portion of a Healthy Schools
Act training and utilized a 360 camera to
generate a virtual tour of George Miller
Head Start in Concord.
California Fire Science Research Series
Record of Training
Total Use & ‘Bad Actor’ Use by County Operations
2000-2020
Camino Diablo Near Brentwood
This is a partial list of trainings coordinated or attended by Committee members and County staff in 2020:
17
1.Actively solicit grants that further the goals of the
IPM Policy and seek to for the inclusion of
appropriate County properties and programs to
be included in IPM research.
2.Help refine departmental IPM training to increase
awareness to the County IPM Policy,
departmental and facility IPM plans, and help
coordinate annual worker safety training, annual
Healthy Schools Act (HSA) training, and
continuing education for licensed applicators.
3.Develop IPM Plans for all sites subject to the HSA.
4.Interagency coordination of targeted grazing
services.
5.Implement IPM Program website updates.
6.Identify ways to incorporate geographic
information system (GIS) technology into existing
IPM programs and to improve the collection and
analysis of IPM data in decision-making and
reporting.
7.Assess the capacity of adjacent public agencies,
community-based organizations, and IPM-related
contracted service providers in the region to
identify potential contract piggybacking
arrangements or joint use agreements that would
increase the level of service of underserved
County-owned parcels.
8.Develop unified messaging protocols between
applicable public and private entities as a
resource for citizens calling regarding pest
concerns on private property or in public housing
that include but is not limited to bed bugs,
cockroaches, ticks, and unwelcome interactions
with wildlife.
9.Exploration of the County procurement process
as it pertains to IPM-related services, equipment,
and supplies in order to identify opportunities
that better support the implementation of the
County IPM Policy.
10.Assess the current versions of Administrative
Bulletin 542, the County IPM Policy, and the IPM
Advisory Committee Bylaws to determine if
revisions are needed.
11.Identify potential IPM-uses for unmanned aerial
vehicles (UAV) in monitoring, mapping, and
possibly controlling problematic pests where it is
safe and ethical to do so.
2021 Work Plan of the IPM Advisory Committee
2021 Work Plan—IPM Coordinator Initiatives
The IPM Coordinator received input from the Committee regarding
the prioritization of the following initiatives listed in order of import:
Kubicek Detention Basin
18
2021 Work Plan—IPM Advisory Committee Goals, Objectives, and Activities
The proposed work plan for 2021 is rooted in the County IPM Policy. The Policy’s four goals are
listed below and on the next page. The Committee has identified six related objectives to
accomplish. The IPM Coordinator will support and track these efforts while pursuing eleven
congruent initiatives found on page 18 as prioritized by the Committee. The 2021 objectives
and strategic activities for each goal are as follows:
Goal 1: Minimize risks to the general public, staff & the environment as a result of pest control activities
conducted by County staff & contractors.
Objective 1: Review which components of existing risk assessment systems and tools could be incorporated
into the County’s process for evaluating risks associated with pest management tactics.
Strategic Activities: On January 21st, the full Committee will continue to discuss the new visualization tool
for pesticide risk assessment that was introduced in the September meeting. Next steps will be
determined then, but it is anticipated that this exploration will be central to most of the meetings of
the full Committee during 2021. The ongoing endeavors of the Decision-Making and Grants & Pilots
Subcommittees will likely overlap with themes pertaining to risk evaluation. Likewise, initiatives 1-4
and 5-8 have direct ties to the topic and will further inform the dialog.
Goal 2: Create, implement and periodically review written IPM plans in the Agriculture, Health, and Public
Works Departments specific to their operational needs and consistent with the UC IPM definition
and this policy.
Objective 2.1: Review existing departmental IPM plans and make revision requests and/or
recommendations.
Objective 2.2: Identify operational linkages between certain County parcels and the work of other County
bodies to promote regenerative partnerships that may include jobs training, wildfire fuel load
reduction, public protection, climate action planning, etc.
Strategic Activities:
2.1: The Committee will review and discuss all current or in progress department IPM plans during the
March 18th meeting and suggest potential areas for revision. Any recommendations will be voted
on and department heads or their designee will be requested to either respond to the
recommendations in writing by 5:00 PM on Friday, July 9th, so it can be included in the agenda
packet for the meeting scheduled on July 15th, or otherwise plan to respond in person (or virtually)
at that meeting. The IPM Coordinator will also provide periodic updates on initiative #3 to help
identify practices that could be implemented beyond juvenile rehabilitation and childcare sites.
2.2: The Decision-Making Subcommittee will receive regular updates on the implementation status of
recently completed documents for vegetation management at two large properties. Many of the
recommendations that stemmed from that are closely tied to this objective. Two juvenile
rehabilitation sites will be studied in early 2021. That research may similarly reveal nexuses
between land stewardship needs and service capacity in the community. Concurrent work on
initiatives 1, 4, 7, and 9 may further uncover mutually beneficial partnerships.
Clayton Valley Drain
10
19
101010e w
2021 Work Plan—IPM Advisory Committee Goals, Objectives, and Activities (cont.)
Goal 3: Promote availability, public awareness and public input into written county pest management
plans and records.
Objective 3.1: Investigate the feasibility of standardizing pest management recordkeeping across County
Departments and centralizing reporting protocols.
Objective 3.2: Assemble a geographic information system (GIS) technical advisory committee (TAC) to
explore the possibilities of improving site-specific pest management data compilation and
increasing the transparency of pest management decisions.
Strategic Activities:
3.1: During the March 18, 2021 discussion regarding IPM plans with department heads or their
designees, plan elements involving record keeping, reporting, and training will also be reviewed.
Time will be set aside to receive feedback concerning the IPM Program website. Attendees will also
be encouraged to share their vision for what the ideal recordkeeping system would look like.
3.2: Once organized, the GIS-TAC will schedule a kickoff meeting in January or February. The initial focus
will be to assess existing applications being used within the County and conduct a preliminary
review of pertinent systems used in the broader industry. The TAC will tentatively plan for two or
three meetings during the year and be comprised of one or more Committee members, County staff
(PW, Ag, & DOIT), and other community members familiar with the subject matter.
Goal 4: Create public awareness of IPM through education.
Objective 4: Review the previous work of the IPM Outreach Subcommittee (2017-2018) to help form a
broader public awareness strategy.
Strategic Activities: The IPM Coordinator and any willing Committee members who served on the Outreach
Subcommittee will present in the meeting scheduled for May 20th. The subsequent discussion may
yield additional items to be considered on future agendas. Progress reports for initiatives 5 and 6
will be given in the full Committee meeting in September. Depending on the success of those
endeavors, additional outreach tools may be available at that point.
Goat & Sheep Grazing at Grayson Creek
20
Contra Costa County
Integrated Pest Management Advisory Committee
2018-2020 Recommendations Tracking Table
Date of IPM
Advisory
Committee
Approval/Rec. #Recommendation
Responsible
Department
or Staff
Property or Program
Specific?Status Additional Information
2020.11.19a
Redefine vegetation management practices that promote proactive strategies
and clarify accountability as it pertains to each site’s natural resources. Efforts
should include:
• Adjusting how funds pertaining to grounds maintenance are allocated.
Proactive and regenerative maintenance practices should be prioritized over
corrective maintenance requests. Personnel from the Office of the Sheriff and
the Public Works Department should engage in a dialog with the IPM
Coordinator to determine what alterations could be immediately implemented
that would refine the business relationship as it pertains to vegetation
management.
• Incorporating a vegetation monitoring protocol that documents periodic
status updates from onsite personnel to the Grounds Division. This may
include sharing still photographs and/or video from the security system on a
routine basis that keeps applicable County staff aware of current vegetation
conditions.
• Provision of supplemental training modules for all personnel, inmates, or
volunteers who may be involved with vegetation management decisions that
cover the County Integrated Pest Management Policy, these
recommendations, and general safety guidelines.
PWD, Sheriff,
IPM
Coordinator
This pertains to the
properties that
contain the West
County Detention
Facility (WCDF) and
Marsh Creek Range
and Detention
Facility (MCDF)
Initiated
Public Works Facilities Services leadership and command staff at each location have indicated
an interest in continuing this conversation. The IPM Coordinator will follow up with all parties
to prioritize which endeavors best support the IPM Policy.
2020.11.19b
Initiate a dialog with adjacent property owners such as East Bay Regional Parks
regarding both properties and Save Mount Diablo at the Marsh Creek property
to explore formal partnerships that strengthen the mission of each agency.
Also consider contracting for vegetation management services in a manner
consistent with the County IPM Policy.
PWD, Sheriff,
IPM
Coordinator
MCDF Not Started
The IPM Coordinator frequently works with representatives of the stewardship teams from
both organizations. With TWIC consent, he will gladly commence preliminary discussions with
the Office of the Sheriff, Public Works Real Property/Facilities Services, and both external
partners to identify potential arrangements that are palatable and mutually beneficial to each
entity.
2020.11.19c
Where chemical controls are required to maintain bare-earth objectives,
prioritize applications to reduce glyphosate dependence and continue to
explore the feasibility of implementing alternative tactics such as steam
weeding, mulching, and competitive planting.
PWD, Sheriff,
IPM
Coordinator
WCDF & MCDF Initiated This will be included in the ongoing discussions referenced in 2020.11.19a as well as other
recommendations as guided by TWIC.
1 Revised 12/14/2020
Contra Costa County
Integrated Pest Management Advisory Committee
2018-2020 Recommendations Tracking Table
Date of IPM
Advisory
Committee
Approval/Rec. #Recommendation
Responsible
Department
or Staff
Property or Program
Specific?Status Additional Information
2020.11.19d
Foster mutually beneficial community partnerships that:
•Allow County personnel to provide a higher level of service by focusing on
core tasks, and
•Maximize balanced cooperation between organized labor, community-based
organizations, and employment training enterprises, and
•Build on regional models that are financially sustainable and ecologically
regenerative.
•Facilitate collaborative landscape programming that allows every County-
owned acre to be a shining example of a restorative community asset.
BOS/CAO Countywide Not Started
The County owns hundreds of acres of underutilized property. The programming that occurs
on portions of these parcels will require the perpetual interest of County operations. The
segments of each property that are not central to the principle function of respective
programs tend to be neglected from a stewardship standpoint. By reimagining how these
peripheral lands are managed, alternative site programming strategies will be revealed. There
are multiple development opportunities that concurrently support the IPM Policy, the recent
Declaration of a Climate Emergency in Contra Costa County, as well as other related social &
racial justice initiatives. The IPM Coordinator is happy to assist as directed by TWIC.
2020.11.19e
The IPM Coordinator is encouraged to play an active role continuing this dialog
with other stakeholders in the County. These findings and additional site
stewardship revelations at similar rehabilitation properties in the County
should be presented to the appropriate body or program for further
consideration. That may include the Office of Reentry and Justice, The Public
Protection Committee, The Community Corrections Partnership and its
associated committees, the Juvenile Justice Coordinating Council, or other
relevant programs.
IPM
Coordinator,
BOS, ORJ,
PWD, Sheriff,
Probation
WCDF, MCDF,
Juvenile Hall, Orin
Allen Youth
Rehabilitation
Facility (OAYRF),
Underutilized County
Properties, CBO
Programs
Not Started The IPM Coordinator welcomes TWIC guidance on which strategic efforts are encouraged for
further pursuit if Supervisors determine it to be worthwhile.
2020.11.19f
At the Marsh Creek Property, consider establishing a site stewardship fund that
receives a portion of fees charged to agencies for range usage or consider
supporting the development of a partner foundation to solicit supplemental
vegetation management funding and to coordinate volunteer efforts.
Sheriff, IPM
Coordinator MCDF Not Started Pending TWIC direction
2020.11.19g
The Marsh Creek facility is encouraged to work with the IPM Coordinator to set
up product demonstrations of steam weeding systems, remote control slope
mowers, and other related machinery to prioritize which equipment
procurements would be appropriate to incorporate into the existing operation.
Sheriff, IPM
Coordinator MCDF Not Started Pending TWIC direction
2020.09.17a
Improve the IPM Website so that it provides as much information as possible.
That may include a link to the Prop 65 list or other databases that contain
information on chronic hazards of certain pesticides.
IPM
Coordinator IPM Website Initiated
This is a top priority of the IPM Coordinator in 2021. Additionally, a group of regional IPM
Coordinators from multiple jurisdictions are collectively pursuing clarity on how to best
classify the risks of both chemical and non-chemical pest management tactics.
2019.11.21a
Encourage County operations to continue to evaluate new and existing weed
and ground squirrel management tactics, considering site requirements,
efficacy, cost, impacts to the environment, and impacts to the community.
PWD, Ag. Dept.Countywide In Progress
Staff participation in IPM meetings from the Public Works and Agriculture Departments has
been commendable in 2020. That interaction--particularly at the subcommittee level--has
helped depict a clearer picture of operational constraints. The newly-formed Grants & Pilots
Subcommittee is chaired by County personnel and intends to advance several proposed
tactics.
2 Revised 12/14/2020
Contra Costa County
Integrated Pest Management Advisory Committee
2018-2020 Recommendations Tracking Table
Date of IPM
Advisory
Committee
Approval/Rec. #Recommendation
Responsible
Department
or Staff
Property or Program
Specific?Status Additional Information
2019.11.21b
Direct departments to annually propose and prioritize potential research
projects associated with emerging and innovative strategies and tactics that
will improve the County’s IPM program.
BOS/PWD, Ag.
Dept.Countywide Complete
Operational departments have been supportive of initial efforts to seek external funding. This
and the following two recommendations were codified in Resolution 2020/326, adopted on
December 8, 2020.
2019.11.21c Encourage County departments to seek outside funding sources for these IPM
research projects.BOS Countywide Complete See additional information regarding 2019.11.21b above. Also, the IPM Advisory Committee
has ranked this as the #1 initiative in 2021 (pg. 18 of the Annual Report).
2019.11.21d Consider establishing funding to internally support such research projects.PWD/Ag. Dept.Countywide Complete See additional information regarding 2019.11.21b above.
2019.11.21e
Allocate additional funding or establish alternative procedures whereby they
may procure a contractor to provide carbon monoxide fumigation services for
ground squirrels along levees, irrigation canals, and flood-control channels
during the spring.
PWD
Maintenance
Division
Flood Control
properties In Progress
There has been substantive progress on this recommendation in 2020. The Decision-Making
Subcommittee referred further exploration and implementation to the Grants & Pilots
Subcommittee. The latter has effectively engaged various subject matter experts and will
continue to move this and other alternative tactics forward.
2019.11.21f
Conduct detailed evaluations of the vegetation management programs along
County rights-of-way during the period October 2018 to present, given that no
herbicides were applied. Have they met the control mandates set forth? Have
they saved funds that may be used to evaluate and implement alternatives to
herbicide applications along roadsides and flood control channels?
PWD
Maintenance
Division
Flood Control
properties, roadsides, Complete
The third paragraph on page 12 of the 2020 Annual Report summarizes this impact. During
the period in question, the increased amount of mowing to meet mandates has diverted
resources away from other important efforts such as sign clearance, tree trimming, pothole
repair, illegal dumping mitigation, encampment cleanups, and responding to citizen requests.
Costs have increased while the total acreage treated has decreased. The Department has
indicated that the requested level of detailed evaluations is not feasible under current staffing
constraints.
2018.11.15a
Have County Departments include the Pest Management Flow Chart created by
Public Works staff and the IPM Coordinator within all annual IPM and pesticide
safety training programs for County staff
PWD, Ag. Dept.Countywide In Progress The IPM Advisory Committee has ranked this as the #2 IPM Coordinator initiative in 2021 (See
page 18 of the Annual Report).
2018.11.15b Allocate funding to the departmental IPM programs to enable pilot testing and
evaluation of emerging and innovative pest management strategies and tactics.PWD, Ag. Dept.Countywide In Progress See note for 2019.11.21e above.
2018.11.15c Revise the County’s Pesticide Use Posting and Notification Policy and signage PWD
All land and facilities
owned by—and
under the control
of—the County
Nearly
Complete
The Posting Task Force of the IPM Advisory Committee reconvened in 2020 to incorporate
TWIC and PWD feedback in addition to other relevant revisions. The IPM Committee
unanimously approved the revised policy and signage and forwarded them to the Public
Works Director for final revision and adoption. Public Works has not indicated the status of
the finalized policy.
3 Revised 12/14/2020
Contra Costa County
Integrated Pest Management Advisory Committee
2018-2020 Recommendations Tracking Table
Date of IPM
Advisory
Committee
Approval/Rec. #Recommendation
Responsible
Department
or Staff
Property or Program
Specific?Status Additional Information
2018.11.15d
Investigate posting on flood control channel access roads where people
frequently walk, or on other rights-of-way that are frequently used as walking
paths
PWD
Flood Control access
roads not intended
for public use
Complete
TWIC clearly articulated in the November 2019 meeting that these sites are not intended or
maintained for public access and it would be inappropriate to send mixed messages by
posting pesticide applications. That sentiment was captured in the revised policy. The
Department confirmed that they would continue to post application signs on trails designated
for public use and would also explore mapping solutions that help educate the community in
identifying designated trails. The IPM Advisory Committee is interested in forming a technical
advisory committee to expand geographic information systems (GIS) capacity as it pertains to
Countywide pest management (See Objective 3.2 & Strategic Activity 3.2 on page 20 of the
Annual Report).
2018.11.15e Investigate the feasibility of erecting permanent signs and determine the most
useful placement for those signs PWD County-maintained
trails Complete TWIC expressed a preference for temporary signage on County right-of-way. That sentiment
was included in the proposed Policy revision.
2018.11.15f Investigate a way for people to make a complaint online about pesticide use PWD Countywide Complete
Since the November 2019 TWIC meeting, Public Works has rolled out Mobile Citizen, a mobile
application that allows citizens to report non-emergency conditions. Additionally, the IPM
Coordinator aims to incorporate a tool on the IPM website as an alternative way for citizens
to report pest management-related concerns to be forwarded to the appropriate department
or jurisdiction.
2018.11.15g Investigate a way for pesticide treatment notifications to be sent to people
who sign up for email notices PWD Countywide Complete
Public Works personnel reviewed this recommendation and determined that their current
system seems to be working. They continue to evaluate methods that promote access to
pesticide application for all citizens. 2021 initiatives that involve IPM website upgrades and
the GIS Technical Advisory Committee will review ways of making all pesticide treatments
more transparent and accessible.
4 Revised 12/14/2020
DATE: September 22, 2020
TO: Brian Balbas, Public Works Director
FROM: James Donnelly, Chair—Integrated Pest Management Advisory Committee
Wade Finlinson, Integrated Pest Management Coordinator
SUBJECT: RECOMMENDATION FROM THE IPM ADVISORY COMMITTEE TO
UPDATE THE PESTICIDE USE POSTING AND NOTIFICATION POLICY
The Integrated Pest Management (IPM) Advisory Committee has unanimously
approved the attached revision of the Contra Costa County Pesticide Use Posting and
Notification Policy. Please review the recommended changes and provide a response
containing the final version as accepted by your executive team.
Here is a summary of notable revisions:
•Clarification that the policy applies only to land and facilities owned by—and
under the control of—the County.
•Incorporation of Healthy Schools Act (HSA) provisions that include:
o Annual notification of potential pesticides that may be used in adult or
juvenile detention facilities to the chief medical officer (Required for
juvenile facilities, and here expanded to adult facilities as a gesture of
transparency. The chief medical officer is the same person for all
detention sites in the county and it is anticipated that the lists will be the
same).
o Clarifies that at locations subject to HSA posting requirements, if there is a
conflict with these guidelines, the HSA regulations prevail.
•Requirement that posting signage contain the following:
o Prop 65 listing information
o Prop 65 disclaimer
o Acute or chronic health effects disclaimer
o Placement of a Quick Response (QR) code linking to the IPM Website for
additional information
•Addition of airport properties to the list of sites exempted from posting
requirements.
9/22/2020 Page 1 of 10
o
o
The option to utilize a QR code to link to the IPM website for additional
product information instead of having to physically post entire lists of
pesticides used at a County facility.
Formatting changes that placed all information regarding permanent
signage into one section of the document.
•Exemption of the use of antimicrobial pesticides such as sanitizers and
disinfectants intended for use on objects or surfaces from these provisions
(Annual training is still required for staff who use these at sites subject to the
HSA; this includes facilities that house school or childcare programs).
•Changes the responsibility of approving lists of potential pesticide products from
the IPM Advisory Committee to the IPM Coordinator.
•Adjustments pertaining to language describing the use of permanent signs as
follows:
o Addition of wording that specifies the use of permanent signage is
generally discouraged with certain exemptions.
o
We are happy to provide further context of this recommendation and are willing to assist
as appropriate with all facets of implementation. Alina Zimmerman has the soft copies of
the policy revision and is best situated to be a central point of coordination within Public
Works to receive input regarding the final approval process. The proposed policy has
implications within the purview of each Public Works Deputy Director, although most of
the impact lies within Facilities Services and the Maintenance Division.
Since the 2018 revision was never formally adopted, the prevailing directive was last
revised in 2012. That version predates some components of the Healthy Schools Act
and does not include other important suggestions from the November 2019 TWIC
meeting as well as years of deliberations and consensus of the IPM Posting Task
Force. This recommendation is consistent with the County’s goal to “minimize risks to
the general public, staff, and the environment” as stated in Administrative Bulletin No.
542.
Attachments:
Contra Costa County Pesticide Use Posting and Notification Policy_Final Version
Contra Costa County Pesticide Use Posting and Notification Policy_Tracked Changes
Contra Costa County Pesticide Application Temporary Posting Sign_PW Facilities and Grounds Version
Contra Costa County Pesticide Application Temporary Posting Sign_PW Maintenance Division Version
CC:
All Public Works Deputy Directors
Chris Lau, Assistant Public Works Director & IPM Committee Member
Michele Mancuso, Sr. Watershed Mgmt. Planning Specialist & IPM Committee Member
Dave Lavelle, Assistant Facilities Maintenance Manager & IPM Committee Member
Michele Wara, Executive Secretary
Alina Zimmerman, Secretary—Advanced
Randy Sawyer, Deputy Health Director; Contra Costa Health Services
Matt Kaufmann, Director of Hazardous Materials Programs
9/22/2020 Page 2 of 10
Contra Costa County Pesticide Posting Policy Revised 9.22.2020
1
CONTRA COSTA COUNTY PESTICIDE USE POSTING AND NOTIFICATION POLICY
General Provisions
This policy applies only to land and facilities owned by—AND under the control of— the County of Contra Costa.
Any County Department that uses or authorizes the use of a pesticide shall comply with the following posting
and notification procedures:
•Signs shall be posted at least three (3) days before application of the pesticide and remain posted at least
four (4) days after application. In specific situations/locations, permanent signs may also be used. See
provisions below under “Permanent Signs”.
•Application information shall be posted on the County website’s pesticide posting page at least three (3)
days before the application. If the application is postponed or changed, information on the website must be
updated.
•If treatment is in an enclosed area, signs shall be posted at all major public and employee entry points.
•If treatment is in an open area, signs shall be posted at highly visible location(s).
•If treatment is on the property of an adult or juvenile detention facility where posting placement is limited,
the chief medical officer at that facility must be notified annually by the IPM Coordinator of pesticides
that may be used during the year.
•If rodenticides are used in bait stations for rats or mice, bait stations shall be posted at eye level on the wall
or other structure above the bait station.
•Exceptions to these provisions are listed below under “Exemptions”.
Contents of Signs
The signs shall be of a standardized design, easily recognizable by the public and County employees and shall
contain the following information:
1.Name of pesticide product
2.Active ingredient(s) in the product
3. United States Environmental Protection Agency (USEPA) or California State registration number
4.Target pest
5.Acute health hazard warning (from the label’s precautionary statement)
6.A check box indicating whether the product is on the Proposition 65 list and the following text:
“Chemicals known to the state of California to cause cancer, birth defects or reproductive harm.”
7.Area to be treated
8.Method of treatment
9.Date(s) of anticipated use; a window of time for anticipated use is acceptable
10.Date of re-entry for staff and the public to the treated area, if applicable
11.Date application is completed
12.Name and contact number of County Department responsible for the application
13.IPM website address for more information
14. IPM Coordinator name and contact information
15.National Pesticide Information Center contact information
16.A web address AND quick response (QR) code linking to the County website’s pesticide posting page
17. A disclaimer saying, “Direct exposure to certain pesticides may cause acute or chronic health effects on
humans and animals.”
Exemptions
Departments shall not be required to post signs in accordance with the provisions above
1.In roadway rights-of-way
2. On airport property specifically regarding vegetation management
3.In other areas where the general public has not been granted access for use for recreation or pedestrian
purposes. Recreation is defined as any activity where significant physical contact with the treated area is
likely to occur.
Note: In the case of numbers 1 or 3, each department that uses pesticides in such locations shall provide a
9/22/2020 Page 3 of 10
Contra Costa County Pesticide Posting Policy Revised 9.22.2020
2
public access telephone number for information about pesticide applications. The public access telephone
number shall be posted in a prominent location at the department’s main office building. Information
provided to callers shall include all items listed under “Contents of Signs”, above.
4.In or around County-owned buildings, if the pesticide is on a list agreed to by the IPM Coordinator and is
posted in accordance with provisions under “Permanent Signs” below.
5. In facilities subject to The Healthy Schools Act (HSA). Posting requirements in such facilities will be in
accordance with HSA laws and regulations as applicable. Where feasible, every effort should be made to
post in a manner consistent with both HSA parameters and this policy in and around facilities that house
school or childcare programs. In the event of conflicting posting and notification requirements, HSA
guidelines supersede those outlined in this policy.
6. When using antimicrobial pesticides such as sanitizers and disinfectants intended for use on objects or
surfaces. These products are pesticides and must be used according to the label by trained personnel.
Annual HSA training is required by all staff who use antimicrobial pesticides at facilities that house school
or childcare programs.
Any pesticide granted an emergency exemption for public health emergencies or other urgent situations by the
County IPM Coordinator shall not be required to be posted prior to treatment. However, all other requirements
for posting, as set forth above, shall be followed.
Use of any pesticide listed by the Organic Materials Research Institute or of any products on the FIFRA 25(b)
list or in California Code of Regulations Section 6147 may be posted on the day of application. All other
provisions listed above apply.
The County IPM Coordinator may, at his or her discretion, grant necessary exemptions to the posting
requirements. Such exemptions will be documented with the reason for the exemption.
Permanent Signs
Each County building shall post a permanent sign in a prominent location with a list of pesticides that may be
used in or around the structure without individual postings. Pesticides not on this list must be posted in
accordance with the provisions above.
Any permanent sign shall contain the following information OR provide a link to the County website’s pesticide
posting page containing the following:
a. Name of the pesticide product
b.Active ingredient(s) in the product
c.Acute health hazard warning (from the label’s precautionary statement)
d. Areas inside or outside the building where the pesticide might be used
Any permanent sign that does not contain items (a) through (d) above shall the include the following:
e.A web address AND quick response (QR) code that links to additional pesticide information for
all products that may be used in and around the structure
f.A check box indicating whether any proposed product is on the Proposition 65 list along with the
following text: “Chemicals known to the state of California to cause cancer, birth defects or
reproductive harm.”
g. Contact number of the County Department responsible for applications
In addition to the provisions above regarding permanent signs in and around buildings, the use of permanent
signs is generally discouraged.
Other Uses of Permanent Signs
Permanent signs may be an effective public communication tool in certain locations. Some areas away from
County-owned or leased buildings where pesticide applications are a regular, periodic occurrence and others
such as parks and walkways that are specifically intended for public recreation or pedestrian purposes may be
9/22/2020 Page 4 of 10
Contra Costa County Pesticide Posting Policy Revised 9.22.2020
3
appropriate. The following provisions apply:
1. At least three (3) days before any pesticide application, the application information must be posted on
the County website’s pesticide posting page. If the application is postponed or changed, information on
the website must be updated.
2.On the actual day of the pesticide application prior to beginning application, a paper sign with the
information listed above under “Contents of Signs” must be affixed to the permanent sign and remain for
at least four (4) days.
9/22/2020 Page 5 of 10
Contra Costa County Pesticide Posting Policy, 2009 Revised 7-20-189.22.2020
CONTRA COSTA COUNTY PESTICIDE USE POSTING AND NOTIFICATION POLICY
General Provisions
This policy applies only to land and facilities owned by– AND under the control of—by the County of Contra
Costa.
Any County Department that uses or authorizes the use of a pesticide shall comply with the following posting
and notification procedures:
•Signs shall be posted at least three (3) days before application of the pesticide and remain posted at least
four (4) days after application. In specific situations/locations, permanent signs may also be used. See
provisions below under “Exemptions” and “Other Uses of Permanent Signs”.
•Application information shall be posted on the County website’s pesticide posting page at least three (3)
days before the application. If the application is postponed or changed, information on the website must be
updated.
•If treatment is in an enclosed area, signs shall be posted at all major public and employee entry points.
•If treatment is in an open area, signs shall be posted at highly visible location(s).
•If treatment is on the property of an adult or juvenile detention facility where posting placement is limited,
the chief medical officer at that facility must be notified annually by the IPM Coordinator of pesticides
that may be used during the year.
•If rodenticides are used in bait stations for rats or mice, bait stations shall be posted at eye level on the wall
or other structure above the bait station.
•Exceptions to these provisions are listed below under “Exemptions”.
Contents of Signs
The signs shall be of a standardized design, easily recognizable by the public and County employees and shall
contain the following information:
1.Name of pesticide product
2.Active ingredient(s) in the product
3. United States Environmental Protection Agency (USEPA) or California State registration number
4.Target pest
5.Acute health hazard warning (from the label’s precautionary statement)
5.6. A check box indicating whether the product is on the Proposition 65 list and the following text:
“Chemicals known to the state of California to cause cancer, birth defects or reproductive harm.”
6.7. Area to be treated
7.8. Method of treatment
8.9. Date(s) of anticipated use; a window of time for anticipated use is acceptable
9.10. Date of re-entry for staff and the public to the treated area, if applicable
10.11. Date application is completed
11.12. Name and contact number of County Department responsible for the application
12.13. IPM website address for more information
13.14. IPM Coordinator name and contact information
15.National Pesticide Information Center contact information
16.A web address AND quick response (QR) code linking to the County website’s pesticide posting page
17. A disclaimer saying, “Direct exposure to certain pesticides may cause acute or chronic health effects on
humans and animals.”
Exemptions
Departments shall not be required to post signs in accordance with the provisions above
1. in In roadway rights-of-way
1.2. On airport property specifically regarding vegetation management
2.3. in In other areas where the general public has not been granted access for use for recreation or pedestrian
9/22/2020 Page 6 of 10
Contra Costa County Pesticide Posting Policy, 2009 32 Revised 7-20-189.22.2020
purposes. Recreation is defined as any activity where significant physical contact with the treated area is
likely to occur.
Note: In the case of numbers 1 or 32, each department that uses pesticides in such locations shall provide a
public access telephone number for information about pesticide applications. The public access telephone
number shall be posted in a prominent location at the department’s main office building. Information
provided to callers shall include all items listed under “Contents of Signs”, above.
4. in In or around County-owned or -leased buildings, if the pesticide is on a list agreed to by the IPM
Advisory Committee.Coordinator and is posted in accordance with provisions under “Permanent Signs”
below.
5. In facilities subject to The Healthy Schools Act (HSA). Posting requirements in such facilities will be in
accordance with HSA laws and regulations as applicable. Where feasible, every effort should be made to
post in a manner consistent with both HSA parameters and this policy in and around facilities that house
school or childcare programs. In the event of conflicting posting and notification requirements, HSA
guidelines supersede those outlined in this policy.
3.6. When using antimicrobial pesticides such as sanitizers and disinfectants intended for use on objects or
surfaces. These products are pesticides and must be used according to the label by trained personnel.
Annual HSA training is required by all staff who use antimicrobial pesticides at facilities that house school
or childcare programs.
Note: Each County building shall post a permanent sign in a prominent location with a list of
pesticides that may be used in or around the structure without individual postings. Pesticides not on
this list must be posted in accordance with the provisions above. The permanent signs shall contain the
following:
a. Name of the pesticide product
b.Active ingredient(s) in the product
c. Acute health hazard warning (from the label’s precautionary statement)
d.Areas inside or outside the building where the pesticide might be used
e.Name and contact number of County Department responsible for applications
Any pesticide granted an emergency exemption for public health emergencies or other urgent situations by the
County IPM Coordinator shall not be required to be posted prior to treatment. However, all other requirements
for posting, as set forth above, shall be followed.
Use of any pesticide listed by the Organic Materials Research Institute or of any products on the FIFRA 25(b)
list or in California Code of Regulations Section 6147 may be posted on the day of application. All other
provisions listed above apply.
The County IPM Coordinator may, at his or her discretion, grant necessary exemptions to the posting
requirements. Such exemptions will be documented with the reason for the exemption.
Permanent Signs
Each County building shall post a permanent sign in a prominent location with a list of pesticides that may be
used in or around the structure without individual postings. Pesticides not on this list must be posted in
accordance with the provisions above.
Any permanent sign shall contain the following information OR provide a link to the County website’s pesticide
posting page containing the following:
a. Name of the pesticide product
b.Active ingredient(s) in the product
c.Acute health hazard warning (from the label’s precautionary statement)
d. Areas inside or outside the building where the pesticide might be used
Any permanent sign that does not contain items (a) through (d) above shall the include the following:
e.A web address AND quick response (QR) code that links to additional pesticide information for
all products that may be used in and around the structure
9/22/2020 Page 7 of 10
Contra Costa County Pesticide Posting Policy, 2009 32 Revised 7-20-189.22.2020
f.A check box indicating whether any proposed product is on the Proposition 65 list along with the
following text: “Chemicals known to the state of California to cause cancer, birth defects or
reproductive harm.”
g. Contact number of the County Department responsible for applications
In addition to the provisions above regarding permanent signs in and around buildings, the use of permanent
signs is generally discouraged.
Other Uses of Permanent Signs
In addition to the provisions above regarding permanent signs in and around buildings, permanent signs are
acceptable Permanent signs may be an effective public communication tool in certain locations. Some areas
away from countyCounty-owned or -leased buildings where pesticide applications are a regular, periodic
occurrence and others such as parks and walkways that are specifically intended for public recreation or
pedestrian purposes may be appropriate. The following provisions apply:
1. The permanent sign must contain, at minimum, the following information
a.Target pest(s)
b.Reason for treatment
c.For additional information contact: Name and contact number of County Department responsible
for applications
d. Posting website address for more information
e.General statement on when treatment is likely to occur, e.g., “spring” or “May – June”
2.1. At least three (3) days before any pesticide application, the application information must be posted on
the County website’s pesticide posting page. If the application is postponed or changed, information on
the website must be updated.
3.2. On the actual day of the pesticide application prior to beginning application, a paper sign with the
information listed above under “Contents of Signs” must be affixed to the permanent sign and remain for
at least four (4) days.
9/22/2020 Page 8 of 10
NOTICE
OF PESTICIDE TREATMENT
Contra Costa County Public Works Facilities and Grounds
Contra Costa County has reduced its pesticide use by 88% since the County initiated its Integrated Pest Management
(IPM) Program. The County’s IPM Policy focuses on long-term pest prevention and combines the use of physical,
horticultural, biological, and chemical methods to manage pests. When pesticides must be used, they are selected and
applied in a manner that minimizes risks to human health, to beneficial and non-target organisms and to the environment.
Direct exposure to certain pesticides may cause acute or chronic health effects on humans and animals.
NON-CHEMICAL
METHODS NEXT
LEAST-HAZARDOUS PESTICIDES
AS A LAST RESORT ► ►
For more information about this treatment, contact
Contra Costa County Public Works at 925-313-7052 or
Wade Finlinson, IPM Coordinator at wade.finlinson@cchealth.org
For more information on IPM: cchealth.org/ipm/notification.php
Scan the QR Code at right to be taken to the County IPM website.
For more information on pesticides, contact
National Pesticide Information Center at 800-858-7378 or
www.npic.orst.edu. Open 8:00 AM to noon, Monday-Friday.
Pesticide Trade Name:
Active Ingredient(s):
Acute (short-term) health hazard warning:
Proposition 65* listed: Yes No
*Chemicals known to the state of California to cause cancer, birth defects or reproductive harm.
EPA Number:
Target Pest(s):
Area(s) to be Treated:
Date of Scheduled Application:
Method of Treatment:
Date/Time it is okay to re-enter (per EPA label):
Date Completed:
PREVENTION
FIRST
Considering the above, it has been decided that a pesticide treatment is necessary in this area.
Avoid area during active pesticide application.
9/22/2020 Page 9 of 10
NOTICE
OF PESTICIDE TREATMENT
Contra Costa County Public Works Maintenance Division
Contra Costa County has reduced its pesticide use by 88% since the County initiated its Integrated Pest Management
(IPM) Program. The County’s IPM Policy focuses on long-term pest prevention and combines the use of physical,
horticultural, biological, and chemical methods to manage pests. When pesticides must be used, they are selected and
applied in a manner that minimizes risks to human health, to beneficial and non-target organisms and to the environment.
Direct exposure to certain pesticides may cause acute or chronic health effects on humans and animals.
NON-CHEMICAL
METHODS NEXT
LEAST-HAZARDOUS PESTICIDES
AS A LAST RESORT ► ►
For more information about this treatment, contact
Contra Costa County Public Works at 925-313-7052 or
Wade Finlinson, IPM Coordinator at wade.finlinson@cchealth.org
For more information on IPM: cchealth.org/ipm/notification.php
Scan the QR Code at right to be taken to the County IPM website.
For more information on pesticides, contact
National Pesticide Information Center at 800-858-7378 or
www.npic.orst.edu. Open 8:00 AM to noon, Monday-Friday.
Pesticide Trade Name:
Active Ingredient(s):
Acute (short-term) health hazard warning:
Proposition 65* listed: Yes No
*Chemicals known to the state of California to cause cancer, birth defects or reproductive harm.
EPA Number:
Target Pest(s):
Area(s) to be Treated:
Date of Scheduled Application:
Method of Treatment:
Date/Time it is okay to re-enter (per EPA label):
Date Completed:
PREVENTION
FIRST
Considering the above, it has been decided that a pesticide treatment is necessary in this area.
Avoid area during active pesticide application.
70527052705270527052705270527000
9/22/2020 Page 10 of 10
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 7.
Meeting Date:12/14/2020
Subject:PROVIDE letter of support for Hazardous Materials Commodities Flow
Study-Risks to Transportation, and request action from BOS.
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE COMMITTEE,
Department:Conservation & Development
Referral No.: 5, 15
Referral Name: Review projects, plans and legislative matters that may affect the health of the
San Francisco Bay and Delta...
Presenter: Ellen Dempsey, CCHMP & Matt
Kaufmann, PWD
Contact: Ellen Dempsey,
(925)335-3200
Referral History:
The Board of Supervisors approved a grant application to the State Office of Emergency Services
(OES) in 2017.
Referral Update:
A Commodity Flow Study was prepared from historical and currently available railroad and
highway data. Based on the results of the Flow Study, 3 chemicals of concern (COCs) were
identified to be used in the Community Risk Assessment portion of this report. Based on the
COCs and other criteria, including rising tide data from the Adapting to Rising Tides (ART)
program, California Healthy Places Index, liquefaction susceptibility, CalARP facilities, locations
of critical facilities, weather conditions, railroad locations, and critical arterial road locations, 5
pinch points* were located in the coastal areas of Contra Costa County.
The pinch points were used to prepare the Community Risk Assessment and chemical plume
analysis to determine worst-case scenario effects of a release of the ammonia/anhydrous
ammonia, propane, and sulfuric acid, which were designated as the most critical COCs.
Staff will provide additional detail on the report at the Committee meeting as well as answer any
questions.
* Pinch points are locations most susceptible to a hazardous materials incident as well as
vulnerable populations and critical facilities affected by an incident
Recommendation(s)/Next Step(s):
RECEIVE report, RECOMMEND that the Board of Supervisors accept the findings of the study
which address community risk to flooding and sea level rise.
Fiscal Impact (if any):
No Fiscal Impact.
Attachments
HazMat Transportation Risk Assessment
HAZARDOUS MATERIALS
COMMODITY FLOW STUDY
WITH SPECIAL FOCUS ON SEA
LEVEL RISE AND FLOOD RISK
CONTRA COSTA COUNTY
CALIFORNIA
Contra Costa Health Services
Hazardous Materials Programs
Tait Environmental Services, Inc.
August 2019
Primarily prepared and edited by
Tait Environmental Services, Inc.
In Cooperation with the
Contra Costa Health Services
Hazardous Materials Programs
TABLE OF CONTENTS
1.0 INTRODUCTION ........................................................................................................................ 1
1.1 Project Objectives 1
1.2 Project Background 2
2.0 HISTORICAL INFORMATION ............................................................................................... 3
2.1 Hazardous Materials Transportation Study 2005 3
2.1.1 Railroad Data ...................................................................................................................... 3
2.1.2 Highway Data ...................................................................................................................... 6
2.2 Highway Flow Study Data from Marin and Solano Counties 12
2.2.1 Marin County Flow Study Data 2014............................................................................. 12
2.2.2 Solano County Flow Study Data 2016 .......................................................................... 16
3.0 COMMODITY FLOW STUDY .............................................................................................. 22
3.1 Railroad Data 22
3.2 Industry Chemical Data 24
3.3 Pipeline Data 25
3.3.1 Richmond Area Pipeline Data ........................................................................................ 26
3.3.2 Crockett Area Pipeline Data ........................................................................................... 28
3.3.3 Martinez Area Pipeline Data ........................................................................................... 30
3.3.4 Pittsburg-Antioch Area Pipeline Data ............................................................................ 32
3.4 Hazardous Materials Incidents 34
3.4.1 Railroad Incidents ............................................................................................................. 34
3.4.2 Highway Incidents ............................................................................................................ 43
3.4.2 Pipeline Incidents ............................................................................................................. 48
4.0 COMMUNITY RISK ASSESSMENT FOR HAZARDOUS MATERIALS ................ 54
4.1 Determination of Pinch Points 55
4.1.1 Rising Tides Data ............................................................................................................. 56
4.1.2 California Healthy Places Index ..................................................................................... 66
4.1.3 Liquefaction Susceptibility ............................................................................................... 68
4.1.4 CalARP Facilities .............................................................................................................. 69
4.1.5 Critical Facilities and Vulnerable Populations .............................................................. 70
4.1.6 Chemicals of Concern ..................................................................................................... 77
4.1.7 Background Weather Data .............................................................................................. 77
4.1.8 Railroads ............................................................................................................................ 79
4.1.9 Roadways .......................................................................................................................... 80
4.2 Release Plume Analysis 81
4.2.1 Background Plume Analysis Parameters ..................................................................... 82
4.2.2 Chemicals of Concern for Plume Analysis ................................................................... 83
4.2.3 Basis for Plume Analysis ................................................................................................. 86
4.3 Ammonia Gas Summary 87
4.4 Propane Summary 91
4.5 Sulfuric Acid Summary 95
5.0 CHEMICAL PLUME ANALYSIS ......................................................................................... 99
5.1 Pinch Point – Richmond #1 101
5.1.1 Scenario 1: Ammonia ................................................................................................... 103
5.1.2 Scenario 2: Propane ..................................................................................................... 105
5.1.3 Scenario 3: Sulfuric Acid .............................................................................................. 108
5.2 Pinch Point – Richmond #2 110
5.2.1 Scenario 1: Ammonia ................................................................................................... 112
5.2.2 Scenario 2: Propane ..................................................................................................... 114
5.2.3 Scenario 3: Sulfuric Acid .............................................................................................. 117
5.3 Pinch Point – Martinez #3 119
5.3.1 Scenario 1: Ammonia ................................................................................................... 121
5.3.2 Scenario 2: Propane ..................................................................................................... 123
5.3.3 Scenario 3: Sulfuric Acid .............................................................................................. 126
5.4 Pinch Point – Bay Point #4 128
5.4.1 Scenario 1: Ammonia ................................................................................................... 130
5.4.2 Scenario 2: Propane ..................................................................................................... 132
5.4.3 Scenario 3: Sulfuric Acid .............................................................................................. 135
5.5 Pinch Point – Antioch #5 137
5.5.1 Scenario 1: Ammonia ................................................................................................... 139
5.5.2 Scenario 2: Propane ..................................................................................................... 141
5.5.3 Scenario 3: Sulfuric Acid .............................................................................................. 144
6.0 INTEGRATION OF DATA WITH GIS ............................................................................. 146
7.0 EMERGENCY RESPONSE AND MITIGATION .......................................................... 147
8.0 SUMMARY .............................................................................................................................. 149
9.0 CONCLUDING STATEMENT ........................................................................................... 159
APPENDICES
APPENDIX A Pipeline Details
APPENDIX B Critical Facilities Data
APPENDIX C ALOHA Background Data
Hazardous Materials Commodities Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
Contra Costa Health Services, Hazardous Materials Programs
TAIT Environmental Services, Inc.
1.0 Introduction
The project consisted of the completion of an initial Hazardous Materials Commodities Flow Study
(Flow Study), the results of which were utilized to prepare a Community Risk Assessment for
Hazardous Materials (CRA) for Contra Costa Health Services, Hazardous Materials Programs
(CCHSHMP). The project was restricted to the coastal areas of the Contra Costa County in areas
affected by rising tides.
1.1 Project Objectives
The proposed overall structure for the completion of the project covered two (2) distinct areas
of focus. An initial Flow Study was completed, and the results of the Flow Study were utilized
to prepare a CRA for the coastal areas of Contra Costa County. The objective of the Flow
Study portion of this project was to determine the potential effects/consequences of a
chemical spill on critical and vulnerable populations and facilities in the coastal cities of Contra
Costa County. The primary focus of the Flow Study was to look at this with respect to rail
transport of hazardous chemicals through the County, and particularly within areas of the
county where the rail lines may be susceptible to rising tides and flooding risks from changes
in our climate. Chemical data from industries in the County helped to determine what types
of hazardous chemicals were being transported through the County via rail. Three chemicals
of concern (COCs) were determined from the railroad data, and these chemicals
(ammonia/anhydrous ammonia, propane, and sulfuric acid) were used in the plume analysis
in the CRA portion of this report.
Utilization of this information allowed for the study to focus on and determine a series of
vulnerable points (“pinch points”), primarily along the rail lines. Additional information used to
locate the pinch points consisted of a review potential flooding due to rising tides, with
information available from the Adapting to Rising Tides Program, locations of critical facilities
and vulnerable populations, areas of high probability of liquefaction resulting from
earthquakes, and specific arterial roads that could be affected by disruption of rail transport
of hazardous materials. Once specific pinch points were located, a comprehensive CRA was
performed to assess worst-case scenarios related to a COCs incident at these locations. The
pinch points were not industry specific, as the focus was on the existing transportation
infrastructure.
The objective of the CRA portion of the project was to utilize the data obtained from the Flow
Study to determine the potential impacts of a hazardous materials accident/incident to the
most vulnerable populations and critical facilities (vulnerability zones) within the hazardous
materials transportation corridors in Contra Costa County. The data from the Flow Study and
the CRA were somewhat overlapping and have been combined herein within a single
comprehensive report with conclusions regarding projected trends in the transportation of
hazardous materials through the county relative to projected sea level rise and flood risk, as
well as provide guidance to the CCHSHMP and Region II LEPC with respect to equipment
and training to allow emergency responders to proactively respond to a hazardous materials
accident/incident/disaster within coastal Contra Costa County.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
2
1.2 Project Background
In November 2016, a two-year project sponsored by San Francisco Bay Conservation and
Development Commission titled Adapting to Rising Tides (ART) was completed. The ART
Program conducted a climate adaptation planning effort in Contra Costa County, which built
understanding of projected risk due to sea level rise and developed planning objectives for
the diverse challenges and opportunities presented by adapting to sea level rise in the County.
This project included areas of the county that interface with the San Francisco Bay, which
include areas extending from Richmond to Bay Point.
After the completion of the initial Contra Costa County Adapting to Rising Tides program, it
was clear that the County must act to identify risks that exist within the shoreline, specifically
in regard to hazardous materials. This project, titled Hazardous Materials Commodity Flow
Study with Special Focus on Sea Level Rise and Flood Risk, was needed to foster a greater
understanding on how major hazardous materials transportation, such as our rail system, can
be impacted by sea level rise/flooding and how that can increase our risk for hazardous
materials incidents that can affect the health and safety of our community. Understanding how
transportation disruptions can impact the County-wide system will benefit hazardous materials
emergency response planning and overall shoreline planning as the actions from the ART
project are implemented.
This project will interface with the overall goals of the County’s Hazardous Materials
Programs. The CAER (Community Awareness Emergency Response) organization will be
engaged to obtain collaboration with our Industry partners in the County to get needed input
and data regarding their current transportation contingency planning for flooding. This also
will maximize the benefit of the project as well as maximize cooperation with needed
resources. CCHSHMP is currently participating in the Bay Area Wide Adapting to Rising Tides
program, as a hazardous materials representative, along with Michael Kent the Hazardous
Materials Ombudsman, as well as the East Contra Costa County program, which is slated to
conclude at the end of 2019. With the conclusion of these additional ART programs, all areas
of Contra Costa County will be addressed. Data from these additional programs, while not
fully completed at the time of the Flow Study competition, have been utilized as part of the
project analysis.
Goals of the project include identifying risks from hazardous materials release due to possible
disruption of transportation due to sea level rise/flooding as predicted by the Adapting to
Rising Tides program. Identifying these issues will help the County to better address and plan
for hazardous materials releases in order to protect and promote health, safety, and wellbeing
of Contra Costa residents.
The f inal project report will be published and made available for hazardous materials
emergency planning as well as the Bay Area wide Adapting to Rising Tides program and other
applicable transportation related planning.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
3
2.0 Historical Information
Background historical information used in preparing both the Flow Study and CRA portions of this
project was obtained from the following sources:
• Hazardous Materials Transportation Study for Contra Costa County, 2005; and
• Highway flow study data from Marin and Solano Counties.
2.1 Hazardous Materials Transportation Study 2005
A Hazardous Materials Transportation Study was performed on the County in 2004 and 2005.
The reference for the study is as follows:
Contra Costa Health Services, Hazardous Materials Programs and California Department
of Health Services, Environmental Health Investigations Branch, 2005, Hazardous
Materials Transportation Study for Contra Costa County, CA, 71 p.
The study was a two-part investigation, which included a railroad transportation survey, and
a highway transportation survey. Details of these surveys are outlined in the sections below.
2.1.1 Railroad Data
Two railroads are the primary transportation railroads in Contra Costa County, Union
Pacific Railroad (UP), and Burlington Northern and Santa Fe Railway (BNSF). Railway
data from UP covered the period from January through December 2004, and the data from
BNSF covered the period from April 1, 2004 through March 31, 2005. Most of the
hazardous materials loads were carried on the following rail segments:
• UP
o Martinez-Davis
o Martinez-Tracy
o Oakland-Martinez
• BNSF
o Richmond-Port Chicago
o Port Chicago-Pittsburg
o Pittsburg-Stockton
The data covering the maximum loads via any Contra Costa rail shipment is contained in
Table 14 of the study, and is listed under the Standard Transportation Commodity Code
(STCC), which is specific to rail transportation, and is shown below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
4
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
5
In addition to the above total shipping data for hazardous materials via the railroad in this
study, information concerning “Toxic by Inhalation” Rail Hazardous Materials, is contained
within Table 16 of the survey. Those data are shown below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
6
Additional railroad data are contained within the 2005 report.
2.1.2 Highway Data
Highway placard survey data was collected for the 2005 report from both the fall of 2004
and summer of 2005. The data were collected from the following survey locations:
• Highway 580-Richmond/San Rafael toll bridge plaza;
• Highway 160-Antioch toll bridge plaza;
• Highway 4-Oakley Street intersection;
• Highway 680-Walnut Creek weigh station;
• Highway 80-Carquinez toll bridge plaza;
• Highway 4-Pittsburg train Bay Area Rapid Transit (BART) station; and
• Highway 580-Livermore weigh station.
Data from the highway placard survey is compiled in the report in various tables. Table 4
shows all of the United Nations (UN) chemical identification numbers from all data from
the highway placard survey and is shown below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
7
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
8
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
9
Additional tables from the 2005 report show the most common UN numbers from the highway
placard survey (Table 5), the frequency of hazardous materials worded placards (Table 6), and
the “Toxic by Inhalation” trucked materials (Table 12). These three (3) tables are reproduced
below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
10
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
11
Additional highway placard data are contained in the 2005 report.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
12
2.2 Highway Flow Study Data from Marin and Solano Counties
Hazardous Materials Commodity Flow Study reports were prepared for the Marin County
Department of Public Works in September 2014, and for the Solano County Department of
Resource Management, Environmental Health Division in May 2016. Both the Marin County
and Solano County agencies were contacted to request the use of the highway placard data
from those reports as it applies to the current Contra Costa County Flow Study. The relevant
data includes highway transportation of hazardous materials at the locations where it enters
Contra Costa County. The data from Marin and Solano County are detailed in the following
sections.
2.2.1 Marin County Flow Study Data 2014
Highway placard survey data from the Marin County Flow Study was obtained for
Interstate-580 where it flows in both north and south directions through the Richmond-San
Rafael Bridge. The results of that study are presented below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
13
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
14
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
15
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
16
2.2.2 Solano County Flow Study Data 2016
Highway placard survey data from the Marin County Flow Study was obtained for
Interstate 580 where it flows in both directions through the following points:
• Interstate 80 at the Carquinez Bridge
• Interstate 680 at the Benicia-Martinez Bridge
The results of that study are presented below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
17
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
18
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
19
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
20
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
21
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
22
3.0 Commodity Flow Study
The data for the commodities Flow Study was obtained from the UP and BNSF Railroads and
from industry chemical data. Data from hazardous materials transport via pipeline are included
in this section. Historical data concerning rail, roadway, and pipeline hazardous materials
incidents is also contained in this section. Utilization of Google Earth and Google Maps for base
maps to portray the various data occur throughout this section and the remainder of the report.
3.1 Railroad Data
Railroad commodity data was obtained and managed by CCHSHMP from both UP and BNSF
from the years 2016-2018. Obtained data is used solely for and by a bona fide emergency
planning and response organization for the expressed purpose of emergency and contingency
planning. All Sensitive Security Information was managed as such by CCHSHMP and
detailed information regarding obtained rail data is not included as part of this report.
The following collection of data provides a comprehensive overview of the total rail traffic
through Contra Costa County during the years analyzed. Charts in the following sections
summarize the overall data with respect to the following:
• Total loaded rail traffic;
• Loaded intermodal rail traffic; and
• High movement of materials and materials of concern.
The Total loaded rail traffic consisted primarily of gases, flammable and combustible liquids,
and corrosive substances, with lesser amounts of toxic substances and miscellaneous
hazardous materials.
Loaded intermodal rail traffic was predominantly miscellaneous hazardous materials with
less than 3% explosives, gases, flammable/combustible liquids, flammable solids, oxidizers
and organic peroxides, and corrosive substances.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
23
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
24
Based on the data, it was determined that the major materials of concern were Propane
(UN1075), Sulfuric Acid (UN1830), and Anhydrous Ammonia (UN1005).
3.2 Industry Chemical Data
CCHSHMP gained support from the Community Awareness Emergency Response (CAER)
group as an emergency response agency and as a leader in community health and safety.
The mission of CAER is to actively enhance public health and safety. CAER leadership
believes this Flow Study supports this mission and identifies emerging threats in our
community. Following the results of the Adapting to Rising Tides program, which is supported
by both the Hazardous Materials Commission and the Contra Costa County Board of
Supervisors, a gap in understanding of the impacts of hazardous materials transportation was
identified. CAER believes that this Flow Study will help to fill the gap in understanding and
address planning needs for sea level rise and flooding issues that are predicted to occur in
the San Francisco Bay Area.
CAER holds representation from a majority of the large industrial facilities located in Contra
Costa County. In order to further validate and identify chemicals of concerns, as determined
from railroad data, an Industry Questionnaire was developed and distributed to the members
of CAER. This questionnaire addressed hazardous materials transported to and from the
facilities, approximate volumes, issues with flooding and other disruptions, as well as
alternative arrangements made to ship hazardous materials. The hope was to gain a better
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
25
understanding of what impacts would be possible directly relating from industry due to a
disruption of rail transportation.
Unfortunately, the results of the Industry Questionnaire were not obtained as part of this
project.
3.3 Pipeline Data
Information concerning underground pipelines in Costa Mesa County was obtained from the
website of the National Pipeline Mapping System (NPMS) at
https://www.npms.phmsa.dot.gov/. A map showing the pipelines in Contra Costa County is
shown below. Most of the pipelines in the County are located in the coastal areas, and in
many locations, they are co-located with the railroad lines.
Due to the large number of pipelines in the County, the coastal part of the County was
subdivided into four (4) areas. Detailed maps showing the hazardous liquid pipelines and
gas transmission lines in these areas are shown in the following sections. Details concerning
the hazardous liquid pipelines are contained in Appendix A. The numbers on the hazardous
liquid pipeline maps refer to the detailed pipeline data listed in Appendix A.
Maps showing the gas transmission lines are also shown, but the various pipelines have not
been detailed. The primary constituent of the gas transmission lines is natural gas.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
26
3.3.1 Richmond Area Pipeline Data
The gas transmission pipelines and hazardous liquid pipelines for the Richmond area
are shown in the following maps. Details for the hazardous liquid pipelines are contained
in Appendix A-1.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
27
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
28
3.3.2 Crockett Area Pipeline Data
The gas transmission pipelines and hazardous liquid pipelines for the Crockett area are
shown in the following maps. Details for the hazardous liquid pipelines are contained in
Appendix A-2.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
29
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
30
3.3.3 Martinez Area Pipeline Data
The gas transmission pipelines and hazardous liquid pipelines for the Martinez area are
shown in the following maps. Details for the hazardous liquid pipelines are contained in
Appendix A-3.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
31
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
32
3.3.4 Pittsburg-Antioch Area Pipeline Data
The gas transmission pipelines and hazardous liquid pipelines for the Pittsburg-Antioch
area are shown in the following maps. Details for the hazardous liquid pipelines are
contained in Appendix A-4.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
33
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
34
3.4 Hazardous Materials Incidents
Data involving hazardous materials transportation incidents were reviewed from available
sources, generally publicly available resources. Hazardous Materials incident data were
available for rail and roadway transportation through the County. In addition, pipeline
incidents involving both hazardous liquids and gases in the Coastal areas of the County are
also discussed.
3.4.1 Railroad Incidents
Data concerning hazardous materials incidents involving the railroads in Contra Costa
County were obtained from the following sources:
Federal Railroad Administration, on line at https://fragis.fra.dot.gov/gisfrasafety/
Federal Railroad Administration, Office of Safety Analysis, on line at
https://safetydata.fra.dot.gov/OfficeofSafety/publicsite/Query/AccidentByStateRailroa
d.aspx
Contra Costa County Railroad Accident Timeline, on line at
http://www.mapreport.com/na/west/ba/news/citysubtopics/contra_costa_county-d-
r.html
In addition, information was utilized from California Office of Emergency Services
(CalOES), as well as various on-line news articles related to rail incidents.
Rail incident data from 2000 through 2019 were used for this report. It should be noted
that some of the rail incidents may include release of hazardous materials from other than
a rail car, particularly in the event of a train accident with a vehicle carrying hazardous
materials. These have not been differentiated in the data.
Three general categories were reviewed and they are as follows:
• Total number of railroad incidents (140);
• Number of railroad incidents where hazardous materials were involved (46); and
• Number of railroad incidents where hazardous materials were spilled (19).
A summary table of the railroad incidents in Contra Costa County over the period of
2000 through 2019 is as follows.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
35
A large number of rail incidents, including a somewhat higher percentage of rail incidents
involving hazardous materials occurred between 2000 and 2007, with a major spike in
2014. With the exception of the number of incidents in 2014, the number of incidents in
the last 10 years has generally declined from the early 2000s.
Chemicals involved in the railroad incidents are listed in the following chart. Three of these
chemicals, anhydrous ammonia, propane, and sulfuric acid were used as the chemicals
of concern for plume analysis in the CRA portion of this report.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
36
Each of the above three general categories was further subdivided into the following
subcategories:
• Number of incidents by railroad company;
• Number of incidents by cause of incident; and
• Number of incidents by city.
The total number of incidents (140), both hazardous and non-hazardous, occurring on the
railroads in Contra Costa County from the period from 2000 through 2019 are illustrated
in the following charts.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
37
UP
26%
BNSF
39%RPRC
1%
Amtrak
21%
Other
13%
Total Railroad Incidents 2000-2019
Contra Costa County
UP
BNSF
RPRC
Amtrak
Other
Derailment
37%
Collision
14%
Obstruction
5%
Leaking Train
Cars
4%
Other
40%
Total Railroad Incidents by Cause
2000-2019
Contra Costa County
Derailment
Collision
Obstruction
Leaking Train Cars
Other
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
38
Richmond
33%
Martinez
14%
Pittsburg
10%Antioch
3%
San
Pablo
3%
Rodeo
4%
Hercules
1%
Pinole
5%
Crockett
7%
Oakley
4%
Brentwood
2%
Other
14%
Total Railroad Incidents by City
2000-2019
Contra Costa County
Richmond
Martinez
Pittsburg
Antioch
San Pablo
Rodeo
Hercules
Pinole
Crockett
Oakley
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
39
The number of railroad incidents involving hazardous materials (46 incidents) occurring in
Contra Costa County from the period from 2000 through 2019 are illustrated in the
following charts.
UP
44%
BNSF
43%
RPRC
2%
Amtrak
4%
Other
7%
Hazmat Involved Rail Incidents
2000-2019
Contra Costa County
UP
BNSF
RPRC
Amtrak
Other
Derailment
72%
Collision
13%
Leaking Train Cars
15%
Hazmat Involved Rail Incidents by Cause
2000-2019
Contra Costa County
Derailment
Collision
Obstruction
Leaking Train Cars
Other
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
40
Richmond
26%
Martinez
22%Pittsburg
17%
San Pablo
2%
Rodeo
7%
Pinole
2%
Crockett
9%
Brentwood
2%Other
13%
Hazmat Involved Rail Incidents by City
2000-2019
Contra Costa County
Richmond
Martinez
Pittsburg
Antioch
San Pablo
Rodeo
Hercules
Pinole
Crockett
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
41
The number of railroad incidents resulting in hazardous materials spills (19 incidents)
occurring in Contra Costa County from the period from 2000 through 2019 are illustrated
in the following charts.
UP
42%
BNSF
32%
Amtrak
10%
Other
16%
Hazmat Spill Rail Incidents 2000-2019
Contra Costa County
UP
BNSF
RPRC
Amtrak
Other
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
42
Derailment
42%
Collision
21%
Leaking Train
Cars
37%
Hazmat Spill Rail Incidents by Cause
2000-2019
Contra Costa County
Derailment
Collision
Obstruction
Leaking Train Cars
Other
Richmond
26%
Martinez
21%
Pittsburg
5%
Rodeo
11%
Crockett
11%
Brentwood
5%
Other
21%
Hazmat Spill Rail Incidents by City
2000-2019
Contra Costa County
Richmond
Martinez
Pittsburg
Antioch
San Pablo
Rodeo
Hercules
Pinole
Crockett
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
43
A review of the above data indicates the following trends:
• Major cause of total rail incidents is derailment;
• Major causes of hazardous materials spill incidents are derailment, leaking
train cars, and collision;
• Both UP and BNSF lines contained the major portion of the total rail incidents,
as these are the major rail lines in the area;
• UP had a higher percentage of hazardous materials spill incidents than BNSF;
• Total rail incidents were located primarily in the cities of Richmond, Martinez,
Pittsburg, Rodeo, and Crockett; and.
• Hazardous materials spill incidents were located primarily in Richmond,
Martinez, Rodeo, and Crockett.
3.4.2 Highway Incidents
Data concerning hazardous materials incidents involving the highway and roadways in
Contra Costa County were obtained from the following sources:
California Highway Patrol (CHP).
PHMSA Data Mart Hazardous Materials, on line at
https://portal.phmsa.dot.gov/analyticsSOAP/saw.dll?Dashboard.
The California Highway Patrol provided general data for the years 2016 through 2018.
Data from PHMSA were obtained for the years 2010 through 2019. Many of the hazardous
materials incidents in the PHMSA data involved small quantities of released materials.
The data are summarized in the following table.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
44
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
45
Based on the data shown above, the incident rate per year (2019 not yet completed) is
shown in the following chart.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
46
Several different hazardous materials classes are represented in the releases as shown
in the following chart.
Information concerning hazardous materials incidents on a nationwide basis was available
from the following publications:
U.S. Department of Transportation, Bureau of Transportation Statistics, March 15,
2018, Facts and Figures 2017.
U.S. Department of Transportation, Bureau of Transportation Statistics, January 1,
2015, Facts and Figures 2015.
Information from the Bureau of Transportation Statistics (BTS) included data concerning
total truck trips and total truck hazardous materials incidents for the years from 2010
through 2016. The information is summarized in the following table and charts.
Class 2 Gases
3%
Class 3
Flammable/Combustible
Liquids
44%
Class 4 Flammable
Solids
3%
Class 8 Corrosive
Substances
50%
HAZMAT CLASS
Contra Costa County Roadway Incidents: 2010-2019
Dangerous Goods
Class 1 Explosives
Class 2 Gases
Class 3 Flammable/Combustible Liquids
Class 4 Flammable Solids
Class 5 Oxidizers and Organic Peroxides
Class 6 Toxic Substances
Class 7 Radioactive Materials
Class 8 Corrosive Substances
Class 9 Miscellaneous
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
47
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
48
The above data indicate that throughout the period from 2010 through 2016, the number
of nationwide incidents resulting from highway transportation of hazardous materials cargo
has increased from 2010 through 2016. In addition, the rate of the hazardous materials
incidents has also increased. In general, the number of hazardous materials incidents
occurs in about 12 to 14 times per 10,000 total truck trips. These numbers can be
extrapolated to Contra Costa County, although there may be an increase in the
frequency/rate of the incidents due to the following:
• High traffic volumes in a heavily populated urban area;
• Increased frequency of transportation of hazardous materials along arterial
roadways; and
• Increased number of incidents because of flooding due to rising tides.
3.4.2 Pipeline Incidents
Release incidents can occur along pipelines that can endanger populations located
adjacent to the pipelines, as well as those in downstream areas from the pipelines. This
is particularly true with the natural gas pipelines, and was evidenced in the 2010 San
Bruno PG&E natural gas pipeline explosion and fires. In order to mitigate any negative
results due to a release incident along the pipelines, Contra Costa County should
coordinate with the pipeline operators to immediately isolate the affected lines. Isolation
will ensure that a minimal amount of the population is affected by the incident. In addition,
evacuation procedures should be in place to quickly and efficiently remove the affected
populations from the areas impacted by the incident.
Most of the data available from the National Pipeline Mapping System (NPMS) at
https://www.npms.phmsa.dot.gov/ covered releases from hazardous liquid pipelines with
few releases listed from the gas transmission lines. Maps showing the locations of the
pipeline incidents in the coastal area of Contra Costa County and accompanying details
of the incidents are shown below for the Richmond, Crockett, Martinez, and Pittsburg-
Antioch areas.
Hazardous liquid pipeline data for the Richmond area are shown in the following map
and table. There was no information available for gas transmission line incidents in the
Richmond area.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
49
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
50
Hazardous liquid pipeline data for the Crockett area are shown in the following map and
table. There was no information available for gas transmission line incidents in the
Crockett area.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
51
Hazardous liquid pipeline data for the Martinez area are shown in the following map and
table. Information was also available for gas transmission line incidents in the Martinez
area.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
52
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
53
Hazardous liquid pipeline data for the Pittsburg-Antioch area are shown in the following
map and table. There was no information available for gas transmission line incidents in
the Pittsburg-Antioch area.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
54
4.0 Community Risk Assessment for Hazardous Materials
This Community Risk Assessment for Hazardous Materials (CRA) is developed to further refine
and define the areas of increased risk within the coastal area of Contra Costa County that are
vulnerable to a significant hazardous materials release from railroad, roadway, or pipeline
incident. Data from the Flow Study outlined above in Section 3 of this report was used to aid in
the identification of major toxic chemicals or COCs that could present a danger to vulnerable
areas of the County during a release incident. In addition, the Flow Study data aided in the
determination of the pinch points or the locations most susceptible to a hazardous materials
incident as well as vulnerable populations and critical facilities affected by an incident. This
analysis and determination of pinch points will be aided by available data from the Adapting to
Rising tides program. The CRA presented herein will allow for first responders to plan the incident
response in advance of the incident, and to provide additional information toward the planning
needs of Contra Costa County.
Potential hazardous materials incidents within Contra Costa County can be generally classified
as follows:
• Spill or Release: Exposure to toxic vapors, gases, liquids, and solids, requiring County
residents and business to undertake protective actions, such as evacuation or shelter-in-
place. Secondary risk to the environment is possible including contamination of
subsurface drinking water sources, soil contamination, and danger to the health of wildlife.
• Fire: Toxic chemicals may be produced when hazardous materials burn creating
inhalation and skin adsorption issues from toxic clouds and plumes, and it may require
County residents and business to undertake protective actions such as evacuation or
shelter in place. Fires related to hazardous materials tend to be focused around industrial
areas and transportation corridors.
• Explosion: Explosions can occur with fires at hazardous materials sites, and represent a
physical hazards as well as a chemical hazard. As with fires related to hazardous
materials, explosions tend to occur in industrial areas and along transportation corridors.
Boiling Liquid Expanding Vapor Explosions (BLEVEs and may also pose an immediate
threat to County residents and businesses.
The following are examples of the critical facilities that could be impacted by a hazardous
materials incident:
• City, County, State, and Federal Buildings, including public safety and public works
buildings;
• Fire Stations;
• Hospitals, Emergency Care, and other Medical Facilities;
• Nursing and Convalescent Homes;
• Community Centers and Shelters; and
• Colleges, Schools, and Preschools.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
55
Other general assets that could be affected by a hazardous materials incident are:
• Vulnerable Populations; and
• Residential Building Stock.
Vulnerable populations are often present in close proximity to major transportation corridors.
Many of these areas are relatively high-density residential areas, and from a demographic
standpoint, they tend to be lower-income areas.
The scope of work for the completion of the CRA was focused on the following areas:
• Hazardous materials producers/users/transporters located within the coastal areas of
Contra Costa County;
• Transportation routes of hazardous materials along the UP and BNSF Railroads in the
coastal and near-coastal areas of Contra Costa County;
• Evaluation and determination of the five (5) pinch points based on the locations where a
hazardous incident is more likely to occur and the effects on critical facilities and
vulnerable populations is at higher risk;
• Land use in high-risk areas (commercial, industrial, residential);
• Demographics;
• Utilization of CalARP data for Contra Costa County;
• Incorporation of ALOHA/CAMEO/MARPLOT data and ERG data into the CRA for high-
risk areas;
• Potential impacts in high-risk areas; and
• Evaluation of the vulnerability of specific areas.
4.1 Determination of Pinch Points
Five pinch points were determined during this study for extended analysis in the event that a
hazardous materials incident/accident occurred at these locations. The pinch points were
located as follows:
Richmond #1: I-580 at Meade Street
Richmond #2: Richmond Parkway South of MacDonald Avenue
Martinez #3: Shell Avenue and Marina Vista Avenue
Bay Point #4: Nichols Road North of Port Chicago Highway
Antioch #5: End of Arcy Lane
The locations of the 5 pinch points are shown on the map below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
56
The determination of the pinch points was dependent in part on the following parameters,
which were used to perform the CRA:
• Rising Tides data and areas most susceptible to rising tides and sea level rise;
• California Healthy Places Index indicating vulnerable populations;
• Liquefaction Susceptibility data;
• Location of CalARP Facilities;
• Locations of Critical Facilities;
• Chemicals of Concern;
• Weather data;
• Railroad Locations; and
• Critical Arterial Road Locations.
These parameters are described in detail in the following sections and are tabulated in the
various parts of Section 5 of this report.
4.1.1 Rising Tides Data
A critical aspect of the determination of pinch points is an analysis of flooding due to rising
tides and sea level rise, including king tides and storm surges. These critical aspects will
be summarized in this section based on the data available from the following sources:
Contra Costa County ART Project, March 14, 2017, Adapting to Rising Tides: Contra
Costa County Assessment and Adaption Project, 188 p.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
57
Adapting to Rising Tides Bay Shoreline Flood Explorer, 2019, San Francisco Bay
Conservation and Development Commission’s Adapting to Rising Tides Program, on
line at https://explorer.adaptingtorisingtides.org/home.
Adapting to Rising Tides East Contra Costa Shoreline Flood Explorer, 2019, San
Francisco Bay Conservation and Development Commission’s Adapting to Rising Tides
Program.
Flooding due to rising tides and sea level rise can have a significant impact on the ground
transportation of goods, including hazardous chemicals, as well as commuters, and the
ability of first responders to respond to emergency situations. Impacted transportation
routes include railroads, roadways, and pipelines.
Two major rail lines are located in the coastal areas of Contra Costa County. Union Pacific
Railroad (UP) operates along the shoreline area of the County from Richmond to past I-
680 through Martinez, where it is directed easterly toward Pittsburg, and then
southeasterly toward Tracy. Burlington Northern and Santa Fe Railroad (BNSF) operates
from Richmond along the coast to Pinole where it heads inland to Martinez where it joins
the UP line. BNSF is directed easterly toward Pittsburg, and then on to Stockton.
Richmond Pacific Railroad Company (RPRC) leases about 11 miles of UP track in the
western part of Richmond. The UP rail line is also used by passenger/commuter trains.
The effect of rising tides on the rail lines can be summarized as follows:
• Rail lines located along the shorelines serve as a first line of defense against inland
flooding, also known as ad hoc flood protection;
• Disruption of rail line transportation can have significant impacts on the movement
of goods through Contra Costa County, particularly alternate transportation along
roadways;
• In the event of flooding, the stability of the rail lines in some areas (ballast and
track bed materials) may be at risk of becoming structurally unsound;
• Groundwater table rise due to climate change could also result in the instability of
the rail lines due to the potential damage to track bed and ballast materials; and
• Certain areas of the rail lines are in areas at risk of high to very high liquefaction in
the event of an earthquake.
In Contra Costa County, a total of 14 miles of rail is within the 100-year floodplain, including
the coastal floodplain and the tidal creeks and channels. The information contained in the
ART report includes only the area of the County from Richmond to Bay Point. Data from
the East County ART was not available at the time of the completion of the Flow Study.
This is shown in the following chart which is noted as Table 29 in the Contra Costa County
ART Project document referenced above and is reproduced below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
58
Roadways utilized in the transportation of hazardous chemicals in the coastal areas of
Contra Costa County consist of Interstate highways, freeways or expressways, principal
arterial roads, and major collector roads. Of the roadways evaluated in the coastal area
of the County, 27.5 miles are within the 100-year floodplain, and 16.3 miles are potentially
exposed to sea level rise. All 3 Interstate highways (I-580, I-80, and I-680) in the County
carry high volumes of truck traffic throughout the area. The miles of roadways located
within the current 100-year floodplain is shown in the following chart which is noted as
Table 31 in the Contra Costa County ART Project document referenced above and is
reproduced below.
Table 32 from the same document shows the local streets and roads at risk of current or
future flooding and is reproduced below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
59
As with the railroads, portions of the freeways are susceptible to damage due to sea level
rise or an elevation of the groundwater table. Also, in the event of disruption of
transportation of commercial goods along the rail lines, significant stress will be placed on
the roadways to move cargo and people through the area.
Numerous pipelines carry hazardous chemicals through the coastal areas of Contra Costa
County. According to the Contra Costa County ART Project document, approximately
pipelines carry 11% of transported goods, primarily liquid petroleum products through the
County. Many of the pipelines are collocated with the rail lines, and issues due to rising
tides and sea level rise could equally affect the pipelines, resulting in major chemical spills
from the pipelines.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
60
Using the Adapting to Rising Tides Bay Shoreline Flood Explorer, the project compiled
data for three different scenarios:
• 12-Inch Sea Level Rise, Equivalent to King Tide with no Sea Level Rise;
• 24-inch Sea Level Rise, Equivalent to 5-Year Storm Surge with no Sea Level Rise;
and
• 36-Inch Sea Level Rise, Equivalent to 50-Year Storm Surge with no Sea Level
Rise.
The above flooding scenarios were chosen due to various factors including likelihood of
that flood event occurring. 12-Inch Sea Level Rise, for example, is equivalent to a King
Tide, which is the highest predicted high tide of the year. A 5-Year Storm Surge has a
one-in-five chance (20% chance) of occurring on any given year, and a 50-Year Storm
Surge has a 2% chance.
Also, sea level rise probability predictions were considered. According to the State of
California Sea Level Rise Guidance 2018 Update, sea level rise in the San Francisco area
is predicted to be between six (6) to 10 inches by 2030 and 13 to 23 inches by 2050.
For more information regarding probabilistic prediction, please see:
http://www.opc.ca.gov/webmaster/ftp/pdf/agenda_items/20180314/Item3_Exhibit-
A_OPC_SLR_Guidance-rd3.pdf
For purposes of the CRA, only the 12-inch Sea Level Rise, equivalent to a King Tide with
no Sea Level Rise will be used in the Chemical Plume analysis section of this report
(Section 5).
These three scenarios for Richmond and Martinez areas of Contra Costa County are
shown in the following three maps. Detailed maps covering the 12-inch Sea Level Rise,
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
61
equivalent to a King Tide with no Sea level Rise will be provided with the various pinch
point locations discussed in Section 5.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
62
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
63
These three scenarios for the eastern portion of Contra Costa County were obtained from
the Adapting to Rising Tides Eastern Contra Costa Shoreline Flood Explorer, and they are
compiled in the following three maps. Detailed maps covering the 12-inch Sea Level Rise,
equivalent to a King Tide with no Sea level Rise will be provided with the various pinch
point locations discussed in Section 5.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
64
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
65
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
66
4.1.2 California Healthy Places Index
The California Healthy Places Index (HPI) was used as an aid to determine more
vulnerable populations for the CRA, including areas of lower income residential
development. The HPI is available on line at https://map.healthyplacesindex.org/. The HPI
indicators were developed using the following data:
• Economic;
• Education;
• Transportation;
• Social;
• Clean Environment;
• Housing; and
• Healthcare Access.
The HPI indicators are supported by a number of Decision Support Layers as follows:
• Health Outcomes;
• Health Risk Behaviors;
• Climate Change-Exposures;
• Climate Change-Social Vulnerability;
• Climate Change-Adaptive Capacity;
• Other Indices of Disadvantage;
• Other Decision Support Layers; and
• Race/Ethnicity.
Based on the above data, each area is given a percentile score which fall within the
following parameters from “less” to “more” healthy conditions as follows:
• 0-25 (least);
• 25-50;
• 50-75; or
• 75-100 (most).
A generalized map of Contra Costa County is shown below. Detailed maps will be
provided with the various pinch point locations.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
67
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
68
4.1.3 Liquefaction Susceptibility
Large areas of high to very high susceptibility to liquefaction during a seismic event are
located in the coastal areas of Contra Costa County. Liquefaction occurs where saturated
sand and silt assume the characteristics of a liquid during an intense shaking during an
earthquake. These areas are considered to be vulnerable to disruption of rail and road
traffic, as a result of an incident during an earthquake. Information on liquefaction
susceptibility in Contra Costa County was obtained from the US. Geological Survey on
line data at https://earthquake.usgs.gov/learn/topics/geologicmaps/liquefaction.php. A
generalized map of high to very high liquefaction susceptibility in the County is shown
below. Detailed maps will be provided with the various pinch point locations.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
69
4.1.4 CalARP Facilities
Contra Costa Health Services provides an on-line listing of sites that are part of the
California Accidental Release Prevention (CalARP) Program at
https://cchealth.org/hazmat/rmp/. Locations of CalARP facilities aided in the
determination of the pinch points, as hazardous chemical from some of the CalARP sites
were transported through the area along the railroads and roadways. Some of the CalARP
facilities are considered to be critical operating facilities, as they include water treatment
and energy generation /transfer facilities, as well as large economic centers.
In the event of rail incident resulting from derailment or other cause due to rising tides and
subsequent flooding, major rail transport of manufactured goods, including hazardous
materials via rail may be seriously disrupted for unspecified periods of time. Alternate
shipping routes, including other rail lines, arterial roadways, and ports will be subjected to
increased volumes of traffic, potentially resulting in increased transportation-related
incidents along all transportation lines.
Currently, a Hazardous Materials Commodity Flow Study is being undertaken for 11
California deep water ports, including the Port of Richmond by Dr. George Lane of the
Center for Catastrophic Risk Management of the University of California at Berkeley. This
study is being funded by CalOES, and the results are separate from this project.
A map locating the CalARP facilities in the coastal areas of Contra Costa County is shown
below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
70
4.1.5 Critical Facilities and Vulnerable Populations
The locations of critical facilities were used as an aid in determining the locations of the
pinch points. Critical facilities located in the coastal areas of Contra Costa County can be
summarized as follows:
• City, County, Federal Buildings
o City Hall
o Civic Centers
o City Administrative Buildings
o Local Police Departments
o Public Libraries
o Public Works
o County Administrative Buildings
o Sheriff Departments
o Animal Shelters
• Fire Stations
• Hospitals and Emergency Medical Care
o Hospitals
o Clinics
o Urgent Care
o Surgical Services
• Nursing and Convalescent Homes
o Nursing Homes
o Residential Care
o Assisted Living Centers
• Community Centers/Shelters
o Community Centers
o Rescue Missions
o Homeless Shelters
• Schools
o Colleges
o High Schools
o Middle Schools
o Elementary Schools
o Specialty Schools
o Preschools
Many of these facilities are relevant to other hazards than the release of hazardous
materials. As a result, and for the purposes of this CRA, critical facilities will refer to
facilities that may contain vulnerable or essential emergency populations that will require
mitigation/evacuation in the event of a hazardous materials release.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
71
A list of these critical facilities, which are located within one to two miles of the pinch points
is contained in Appendix B. Maps showing the critical facilities listed above are contained
in the following pages.
The locations of critical facilities in relation to the identified pinch points was of primary
concern. Other factors including location of railroads and arterial roadways, liquefaction
potential, rising tides issues, and California Healthy Places also played a cumulative role
in the determination of each of the pinch points.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
72
Pinch Point Richmond #1 is located along a major north-south rail corridor in the city of
Richmond. Most of the cirtical facilities for Pinch Point Richmond #1 are located east of
the pinch point, which is equivalent to the prevailing downwind direction. Much of this
area is in commercial and residential land use. Most of the area west and southwest of
the pinch point is industrial.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
73
Pinch Point Richmond #2 is located along a major north-south rail corridor and rail siding
in the city of Richmond. Most of the cirtical facilities for Pinch Point Richmond #2 are
located east of the pinch point, which is equivalent to the prevailing downwind direction.
Much of this area is in commercial and residential land use. Downtown Richmond is
located directly east of the pinch point. Most of the area west of the pinch point is
industrial.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
74
Pinch Point Martinez #3 is located along the major UP rail line entering the Martinez area
from the coast to the west. Most of the cirtical facilities for Pinch Point Martinez #3 are
located southwest and south of the pinch point. Much of the area southwest of the pinch
point is in commercial and residential land use and downtown Matinez is located in this
direction. Most of the area to the south of the pinch point is residential. Industrial areas,
including oil refineries, are located east of the pinch point, which is equivalent to the
downwind direction. Industrial areas are also located north and west of the pinch point.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
75
Pinch Point Bay Point #4 is located at the intersection of the major UP and BNSF rail lines
heading east from Martinez. Most of the cirtical facilities for Pinch Point Bay Point #4 are
located east-southeast of the pinch point. The major portion of the cities of Bay Point and
Pittsburg, including the commercial, residentia,l and downtown areas of these cities.
These cities are partially downwind of the prevaiing wind direction. The area directly west
of the pinch point are primarily industrial and natural coastal areas.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
76
Pinch Point Antioch #5 is along the BNSF rail heading east from Martinez. Most of the
cirtical facilities for Pinch Point Antioch #5 are located east and east-southeast (downwind)
of the pinch point and includes a major portion of the city of Antioch, including the
commercial, residential, and downtown areas of the city. The area surrounding the pinch
point are primarily industrial and natural coastal areas.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
77
4.1.6 Chemicals of Concern
Based on the Flow Study from the railroads, it was determined that the following 3
chemicals of concern would be used in the CRA portion of this study to cover worst-case
scenario situations at the pinch points in the event of a hazardous materials
incident/accident :
• Ammonia/anhydrous ammonia: highly toxic;
• Propane: highly explosive and commonly transported along the railroads in Contra
Costa County; and
• Sulfuric acid: commonly transported along the railroads in Contra Costa County.
These chemicals are discussed in detail in subsequent sections of this report.
4.1.7 Background Weather Data
Background weather data for use in the plume diagrams were obtained from the following
websites:
• Weather data for the city of Martinez was obtained from http://www.city-data.com/
• Detailed wind data were obtained from https://weatherspark.com
Weather for the coastal regions of Contra Costa County was available for several cities
within the County. For the most part, weather patterns for the coastal cities are very
similar, as shown by the weather data below. This information was used as the basis of
the weather patterns for this study. Wind direction is a critical component of toxic plume
analysis, as it determines the direction which the plume will travel over the land surface.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
78
The wind data for each of the 3 above cities is very similar and can be considered as
representative of the coastal area of Contra Costa County as a whole. Based on the wind
data, the major wind directions for the County are from the west during the period from
February through November, and from the north from November through February.
Based on the weather data above, it was determined that in that the major wind direction
from the west occurred throughout most of the year. As a result, the plume analysis utilized
in this report will cover an incident occurring in July.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
79
4.1.8 Railroads
Railroads in Contra Costa County primarily of the following railroad lines:
• Union Pacific Railroad (UP);
• Burlington Northern and Santa Fe Railroad (BNSF);
• Richmond Pacific Railroad Company (RPRC); and
• Bay Area Rapid Transit (BART).
Detailed information on the railroads in Contra Costa County can be obtained from the
following source:
U.S. Department of Transportation, Federal Railroad Administration, on line at
https://fragis.fra.dot.gov/gisfrasafety/
A generalized map showing the rail lines and freight stations for Contra Costa County was
compiled from the above source and is shown below.
Two major rail lines are located in the coastal areas of Contra Costa County. UP operates
along the shoreline area of the County from Richmond to past I-680 through Martinez,
where it is directed easterly toward Pittsburg, and then southeasterly toward Tracy. BNSF
operates from Richmond along the coast to Pinole where it heads inland to Martinez where
it joins the UP line. BNSF is directed easterly toward Pittsburg, and then on to Stockton.
RPRC leases about 11 miles of UP track in the western part of Richmond. The UP rail line
is also used by passenger/commuter trains.
Many of the rail lines are co-located with underground pipelines, particularly along the
coastal areas. Portions of the rail lines are located in areas of 12-inch (and greater) sea
level rise, as well as in some areas of high to very high liquefaction which could be caused
by earthquake events. Rail lines in these areas could become compromised, resulting in
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
80
potential hazardous materials incidents due to derailment or other causes. In addition,
disruption of commercial rail traffic could result in significant increases in commodity flow
along major arterial roadways and highways throughout the coastal areas of Contra Costa
County. It is also important to note that the rail lines that act as ad hoc flood protection
could result in more significant flooding in surrounding areas due to overtopping effects.
Each of the pinch points discussed in the CRA are located along or adjacent to railroad
lines. These locations are considered to be higher risk, due to one or more factors
discussed above in Sections 4.1.1 through 4.1.7.
4.1.9 Roadways
As discussed above in Section 4.1.8, disruption of commercial rail traffic could result in
increased commodity flow via trucks along various arterial roads and highways in the
vicinity of the pinch points. This also results in a higher risk of a hazardous materials
incident occurring along the roadways. In addition, inundation of the areas of the pinch
points by water, due to rising tides or disruption of rail traffic due to seismic events could
also affect the ability to move commercial goods via roadways.
In consideration of transporting hazardous materials via rail, primarily within rail tanker
cars, it should be noted that one tanker car can generally contain 2 to 3 times the amount
of commodity than one tanker truck. This will put significant pressure on trucking
commodities through neighborhoods of vulnerable populations and critical facilities. It is
also possible that highway transport may not be a viable option in areas of flooding, as
the roadways themselves may also be closed.
Any increase in trucking of hazardous materials though vulnerable neighborhoods will
increase the potential for hazardous materials incidents to occur. Due to the stress placed
on the roadways, and the potential for less-than-ideal road conditions during flooding
activities, the increase in highway related hazardous materials transportation incidents
may be additionally increased.
Based on the comparison of the amount of trucks that would be required to transport
specific hazardous materials, such as sulfuric acid, which would normally be transported
by rail would be dependent on the amount of rail cars that would be disrupted on a time-
dependent basis. Unless, materials can be transported on still-operating rail lines or
through the ports, then the additional stress in highway transport will be significant. In the
event of a large rail incident scenario, a major disruption of commerce through the County
could result in a cessation of manufacturing operations for an unspecified amount of time.
The major arterial roads and highways, which could be subject to increased truck traffic,
including increased hazardous materials transport for each of the pinch points are as
follows:
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
81
4.2 Release Plume Analysis
Plume diagrams for release of hazardous materials from the pinch points are contained in this
section. The plume diagrams are determined using the CAMEO suite of programs created by
the U.S. Environmental Protection Agency (EPA). The CAMEO suite consists of CAMEO
chemicals, ALOHA plume modeling through various release scenarios, and MARPLOT, which
assists in plotting the information onto various map bases, such as Google Earth.
The plume diagrams are utilized in determining the extent of threat zones based on the
release of a particular chemical. Three threat zones are mapped for each chemical release:
• Red zone: Highest threat level
• Orange Zone: Moderate threat level
• Yellow Zone: Low threat level
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
82
The following information was also utilized in the preparation of the plume maps:
• Assumed weather conditions at the time of release;
• Identity and amount of chemical released;
• The amount of the chemical entering the vapor phase (air);
• Location of the release; and
• Time and date of release.
4.2.1 Background Plume Analysis Parameters
The following information was obtained from the National Oceanic and Atmospheric
Administration (NOAA), Office of Response and Restoration guidelines concerning Levels
of Concern (LOCs), which are available on line at:
https://response.restoration.noaa.gov/oil-and-chemical-spills/chemical-
spills/resources/levels-concern.html
A Toxic LOC will determine what level (threshold concentration) of inhalation exposure to
a chemical would be injurious if inhaled over a defined length of time (exposure duration).
In general, the lower the Toxic LOC value, the more toxic the substance is by inhalation.
ALOHA (Areal Locations of Hazardous Atmospheres) is used for emergency response or
planning situations to assess the threat posed to the general public by a chemical release.
ALOHA utilizes public exposure guidelines to predict how members of the general public
would be affected if they are exposed to a particular hazardous chemical in an emergency
response scenario.
ALOHA preferentially uses Acute Exposure Guideline Levels (AEGLs), as they are
considered to be the best public exposure Toxic LOCs. As of mid-2016, AEGLs had been
finalized for about 175 chemicals. ALOHA uses only the AEGL values for a 60-minute
exposure duration.
AEGLs are subdivided into 3 tiers which correspond to specific health effects. The AEGL
tiers and their corresponding threat levels are as follows:
• AEGL-3: Red Threat Zone Level
• AEGL-2: Orange Threat Zone Level
• AEGL-1: Yellow Threat Zone Level
A more detailed discussion of the AEGLs is copied from the NOAA data at
https://response.restoration.noaa.gov/oil-and-chemical-spills/chemical-
spills/resources/acute-exposure-guideline-levels-aegls.html as follows.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
83
4.2.2 Chemicals of Concern for Plume Analysis
Based on the information contained in the Flow Study, the 3 most common chemicals
defined as an inhalation hazard that were observed travelling through Contra Costa
County via rail and highway that were of major concern from a release incident
standpoint were anhydrous ammonia (UN ID #1005, STCC ID #4904210), propane (UN
ID #1075, STCC ID #2912111), and sulfuric Acid (UN ID #1830, STCC ID #2819314).
In the event of a release of these chemicals, isolation and protective distances from the
release point will need to be employed as outlined in the 2016 Emergency Response
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
84
Guide (ERG), which was published by the U.S. Department of Transportation (DOT),
Pipeline and Hazardous Materials Safety Administration (PHMSA).
Data from the ERG concerning isolation and protective distances for anhydrous
ammonia is shown below:
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
85
AEGLs for ammonia, propane, and sulfuric acid as determined by the NOAA are as
follows.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
86
4.2.3 Basis for Plume Analysis
The plume analysis diagrams contained in Section 4 are based on the following
parameters:
• Weather Conditions: Both January and July data represent 2 separate endpoints
of weather conditions in Contra Costa County, and the following weather
parameters are included in the analysis:
o Differing wind directions
o Wind speed
o Temperature extremes. (The average high temperatures for January and July
are used in the analysis)
o Cloud cover
• COCs: Utilization of ammonia/anhydrous ammonia, propane, and sulfuric acid as
the COCs.
• Worst-Case Scenario: Assumption that a worst-case scenario situation where a
maximum amount of the COCs from railroad tanker car are released to the
environment. By utilizing the worst-case scenario default situation, the plume
analysis diagrams will allow for a more significant area of impact than may be
encountered in a realistic scenario.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
87
4.3 Ammonia Gas Summary
The release scenarios outlined above in Section 4.2 are considered to be a worst-case
scenario in the case of a rail tank car holding 34,397 gallons of ammonia that has ruptured
due to derailment due to flooding along the railroad or other cause. This has resulted in the
release of a toxic cloud of liquefied ammonia from the pressurized tanks directly to the
atmosphere. The ammonia quickly combines with moisture in the air, vaporizes, and forms a
toxic cloud migrating downwind from the source.
Information concerning the characteristics of ammonia and anhydrous ammonia and the
migration of an ammonia gas cloud is well represented in the literature, and the general
information summarized here was obtained from the following references:
Centers for Disease Control and Prevention (CDC), Ammonia Solution (UN3318);
Ammonia, Anhydrous (UN1005): Lung Damaging Agent, on line at
https://www.cdc.gov/niosh/ershdb/emergencyresponsecard_29750013.html.
United States Department of Labor, 2018, Ammonia Refrigeration Emergency Response,
on line at
https://www.osha.gov/SLTC/etools/ammonia_refrigeration/emergency/index.html.
United States Department of Labor, 2018, Ammonia Refrigeration Properties of Ammonia,
on line at
https://www.osha.gov/SLTC/etools/ammonia_refrigeration/ammonia/index.html.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
88
Illinois Fertilizer and Chemical Association, 2018, Fertilizer’s Role in Agriculture, on line at
https://www.ifca.com/media/files/27_3.pdf.
Transcaer, Section 4, Anhydrous Ammonia Response, on line at
https://www.transcaer.com/docs/AATour/Transcaer_Ammonia_Training_2011Response
_IG_rev14.pdf.
Airgas, February 15, 2018, Ammonia Safety Data Sheet, on line at
https://www.airgas.com/msds/001003.pdf.
Ammonia/anhydrous ammonia is one of the highest production chemicals in the United
States. It is used in manufacturing, refrigeration, and as an agricultural fertilizer, and is
common in household chemicals. Ammonia can be absorbed into the body by inhalation,
ingestion, and by skin and eye contact. A poisonous and visible vapor cloud is produced
when ammonia comes in contact with water. Ammonia is extremely corrosive, and when it
mixes with air it forms an explosive mixture. Although anhydrous ammonia is classified by
the U.S Department of Transportation (USDOT) as nonflammable, ammonia vapor is
flammable at concentrations of 15% to 28% by volume of air.
The odor threshold for ammonia is between 5 and 50 parts per million (ppm) of air, and the
permissible exposure limit (PEL) is 50 ppm over an 8-hour time period. The USDOT
summarizes the properties of ammonia as follows:
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
89
Ammonia can be absorbed into the body by inhalation, ingestion, and by skin and eye contact.
According to the CDC exposure to dangerous concentrations of ammonia may result in the
following symptoms:
• Rapid eye irritation and burning sensation, and possible severe corrosive eye injury;
• Upon ingestion, nausea, vomiting abdominal pain and corrosive burns to the mouth,
esophagus, and stomach;
• Skin inflammation, including blistering, tissue death, and deep penetrating burns; and
• Exposure to liquefied ammonia gas may lead to severe frostbite and burns.
Characteristics of ammonia/anhydrous ammonia are contained on an Airgas Safety Data
Sheet (Appendix C).
Ammonia is generally transported via highway in high-pressure nurse tanks on trailers pulled
by trucks, or truck cargo tankers. Each truck cargo and carry 20 tons of ammonia. Ammonia
can be transported in pressurized rail cars containing 80 tons of ammonia. The majority of
ammonia is transported by rail. Fixed facilities that use ammonia for refrigeration purposes
may contain pressurized tanks of ammonia.
Ammonia gas is lighter than air, and when it comes in contact with moisture in the air, it will
form an ammonia fog. Once it forms a fog, however, the fog is heavier than air and is likely
to remain low to the ground. This fog or cloud is white in color. The ammonia fog can travel
along the ground aided by wind in the direction of the prevailing wind. Higher temperatures
will cause the ammonia cloud to move and disperse more rapidly than colder temperatures.
Emergency response to an ammonia release is covered in detail in the above-referenced CDC
document and is summarized below:
• Red Zone: (generally corresponds to Red Zone of ALOHA plume designation):
Personal Protective Equipment (PPE) in Level A or Level B should be used. In this
zone, the exposure to chemical hazards, is above IDLH or greater than AEGL-2.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
90
• Yellow Zone (generally corresponds to Orange Zone of ALOHA plume designation):
PPE in Level C, with canister-type gas mask for ammonia levels in air above AEGL-2,
and particulate cartridge/filter combination or a continuous flow respirator for ammonia
levels in air above AEGL-1.
• Green Zone (Generally corresponds to Yellow Zone of ALOHA plume designation):
Level D when exposure limit is less than AEGL-1.
In addition, the CDC recommends the following initial isolation and protective action distances:
• When UN 1005 (anhydrous, liquefied), UN 2073 (35% to 50%), or UN 3318 (>
50%) is involved in a tank, rail car, or tank truck fire:
o Isolate it for 1 mi (1600 m) in all directions; also, consider initial evacuation for 1
mi (1600 m) in all directions.
• When UN 1005 (anhydrous, liquefied) or UN 3318 (> 50%) is involved in small spills
(involving the release of approximately 52.83 gallons (200 liters) or less):
o First isolate in all directions: 100 ft (30 m).
o Then protect persons downwind during the day: 0.1 mi (0.1 km).
o Then protect persons downwind during the night: 0.1 mi (0.1 km).
• When UN 1005 (anhydrous, liquefied) or UN 3318 (> 50%) is involved in large spills
(involving quantities greater than 52.83 gallons (200 liters)):
o First isolate in all directions: 200 ft (60 m).
o Then protect persons downwind during the day: 0.4 mi (0.6 km).
o Then protect persons downwind during the night: 1.4 mi (2.2 km).
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
91
4.4 Propane Summary
The release scenarios outlined above in Section 4.2 are considered to be a worst-case
scenario in the case of a rail tank car holding 34,397 gallons of liquefied petroleum gas
(propane) that has ruptured due to derailment due to flooding along the railroad or other
cause. This has resulted in the release of the contents of the tank car to the environment.
Information concerning the characteristics of propane and the mitigation of a propane release
incident are summarized here, and the data were obtained from the following references:
Alternative Fuels Data Center, Propane Production and Distribution, U.S. Department of
Energy, 2019, on line at https://afdc.energy.gov/fuels/propane_production.html.
Linde, Industrial Gases, Propane, 2019, on line at https://www.linde-
gas.com/en/products_and_supply/gases_fuel/propane.html.
U.S. Energy Information Administration, Petroleum and Other Liquids, 2019, on line at
https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=pet&s=esm_epllpa_rail_nus-
nus_mbbl&f=a.
Ferrellgas (Blue Rhino), 2018, Safety Data Sheet, Propane, on line at
https://www.ferrellgas.com/media/66083/sds_propane_12_18.pdf.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
92
U. S. Department of Transportation, 2016 Emergency Response Guidebook.
Propane is a by-product of natural gas processing and crude oil refining and is produced from
liquid components recovered during natural gas processing. Propane is a colorless, highly
flammable liquefied gas and is one of the main components of liquid petroleum gas (LPG).
Propane is used as a vehicle fuel, as well as for industrial and domestic heating. It is also a
specialty gas employed as a refrigerant and an aerosol propellant.
Propane production has increased over the last several years, and shipments by rail attained
more than 75,000 thousand barrels in 2018 as shown below in the U.S. Energy Information
Administration data:
A typical propane distribution route from producer to consumer is contained in the Alternative
Fuels Data Center information, and is shown as follows:
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
93
Propane is heavier than air and is identified under United Nations (UN) Guide in the
Department of Transport Emergency Response Guidebook (ERG) as No. 1075. The details
concerning transportation information from the Ferrellgas (Blue Rhino) Safety Data Sheet
(SDS) are shown below:
The railroad Standard Transportation Commodity Code (STCC) for propane is 2912111.
The summary of the physical properties of 93% sulfuric acid is reproduced from the Ferrellgas
SDS and is as follows:
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
94
Propane is biodegradable, and will readily evaporate into the environment. Inhalation of
propane in minor amounts is not considered toxic; however, large amounts of propane in the
air can displace oxygen and act as an asphyxiant. Skin absorption and ingestion of propane
is not anticipated, although contact with propane in the liquid phase may result in frostbite.
Propane is highly flammable and explosive, and spillages of large quantities of liquid propane
will vaporize to propane gas. Propane vapors can travel considerable distances. An ignition
source may cause propane to ignite, flash back, and explode. Propane explosions can result
in Boiling Liquid Expanding Vapor Explosion (BLEVE). The U.S. Department of Transport
Emergency Response Guidebook (ERG) has determined general evacuation distances to be
undertaken in the event of propane-induced BLEVE, and they are outlined below.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
95
4.5 Sulfuric Acid Summary
The release scenarios outlined above in Section 4.2 are considered to be a worst-case
scenario in the case of a rail tank car holding 13,350 gallons of 93% sulfuric acid that has
ruptured, and a release of the contents of the tank car to the environment has occurred
following a derailment due to flooding along the railroad or other cause.
Information concerning the characteristics of 93% sulfuric acid and the mitigation of a spill are
summarized here, and the data were obtained from the following references:
Sulfuric Acid, The Essential Chemical Industry-online, 2019, on line at
http://www.essentialchemicalindustry.org/chemicals/sulfuric-acid.html.
Columbus Chemical Industries, Inc., January 22, 2015, Sulfuric Acid, 93% PC, Safety
Data Sheet, on line at
https://www.columbuschemical.com/MSDS/SDS/Sulfuric%20Acid,%2093%25%20PC%205665.pd
f.
J. R. Simplot, July 28, 2017, Sulfuric Acid 93% Safety Data Sheet, on line at
http://sds.simplot.com/datasheets/16020.pdf
Deerpoint Group, Inc., Material Safety Data Sheet, Sulfuric Acid 93%, on line at
https://assets.greenbook.net/M122570.pdf
U. S. Department of Transportation, 2016 Emergency Response Guidebook.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
96
Sulfuric acid is one of the most important compounds manufactured by the chemical industry
and is used to make hundreds of other compounds needed by other industries. Sulfuric acid
is used widely in the manufacture of phosphoric acid in the fertilizer industry,, as well as in the
metal processing industry. Annual production of sulfuric acid in the United States is
37,000,000 metric tonnes. Uses of sulfuric acid are shown in the following diagram, which
was reproduced from the Essential Chemistry on-line, is as follows:
Sulfuric acid is a highly corrosive material, and is identified under United Nations (UN) Guide
in the Department of Transport Emergency Response Guidebook (ERG) as No. 1830. The
details from the J.R. Simplot Safety Data Sheet (SDS) are shown below:
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
97
The railroad Standard Transportation Commodity Code (STCC) for sulfuric acid is 4930040.
The summary of the physical properties of 93% sulfuric acid is reproduced from the Columbus
Chemical SDS and is as follows:
Sulfuric acid is not considered to be harmful to aquatic organisms or to cause long-term effects
to the environment. However, exposure to sulfuric acid can cause skin and eye burns, is
destructive to the tissues of the upper respiratory tract if inhaled, and is harmful, and may be
fatal, if ingested. The American Conference of Governmental Industrial Hygienists (ACGIH)
and the Occupational Health and Safety Administration (OSHA) data for 93% sulfuric acid, as
noted in the J. R. Simplot SDS is as follows:
Spill cleanup of large spills of sulfuric acid should be undertaken by isolating the spill area
with diking materials, including isolation from waterways. The acid can be treated with soda
ash or lime, although neutralization will resolve a release of heat. Sulfuric acid is not
flammable, but can be highly reactive with combustible materials.
Sulfuric acid spills are not considered as toxic, but can form a gray cloud. If sulfuric acid is
mixed with water, it reacts vigorously forming an exothermic reaction. A vapor cloud of sulfuric
acid can mix with water or water vapor to form a white cloud, which, based on the specific
gravity is heavier than air.
Evacuation guidelines are contained with the ERG, and the isolation distance in the event that
a fire is involved is ½ mile in all directions. The response guidelines in the ERG are shown
below. Although there is no stated isolation distance in the event of a sulfuric acid spill, or a
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
98
spill into water, the ERG guidelines with respect to fire should be used as a basis for
evacuation and mitigation.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
99
5.0 Chemical Plume Analysis
This section contains plume analysis for Toxic LOCs for the COCs ammonia, propane, and
sulfuric acid based on the input of specific parameters, as outlined above in Section 4.2.2. As
noted above, these parameters have been determined to illustrate a worst-case scenario and/or
probable scenario with respect to a major release of the COCs within Contra Costa County. As
ALOHA data input requires a date input, the arbitrary date of July 18 is used.
The plume diagrams produced using the ALOHA modeling program for the 5 determined pinch
points located within coastal area of Contra Costa County, and they are described in the following
sections. In each section, the basis of the ALOHA plume maps are presented with the following
summary data:
• Text Summary: the text summary describes the parameters under which the plume data
were prepared. This includes:
o Site Data which has been input specifically for the location.
o Chemical Data for the specific chemical (in this case chlorine or ammonia), including
AEGL-1, AEGL-2 and AEGL-3 (60 minutes), other specific chemical characteristics,
and the “Immediately Dangerous to Life and Health (IDLH) concentration.
o Atmospheric Data derived from the weather data for Contra Costa County for July.
The prevailing wind direction for 10 months of the year (February through November)
is from the west, and this direction will be used in the ALOHA modeling.
o Source Strength, including quantity spilled/released into the atmosphere and
conditions under which it was released.
o Threat Zone, which defines the red, orange, and yellow threat zones.
• Toxic Threat Zone: This is a schematic of the plume size and shape with a summary of
the threat zone.
• Release Rate: This is a graph of the data contained in the text portion under Source
Strength.
• Plume Diagram: The plume diagram is superimposed on a Google Earth base. The 3
threat zones (red, orange, and yellow) are shown, as are the critical facilities receptors.
Site-specific parameters were applied to the plume modeling mapping discussed for each of the
5 pinch points in Sections 5.1 through 5.5.
Ammonia/Anhydrous Ammonia: ALOHA model plume mapping of an ammonia/anhydrous
ammonia (UN ID# 1005) release is shown in the plume maps. Some of the major parameters
used in plume development include:
• Incident occurs in mid-July with an internal tank temperature of 85oF;
• Wind is from the west at nine (9) miles per hour;
• Size of railroad tank care is 34,397 gallons;
• Tank diameter of 10.66 feet; and
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
100
• The rupture in the tank car is a 10-inch diameter hole located near the bottom of the tank
car.
Detailed parameters are contained in Appendix C. Critical facilities within the plume are also
shown on the maps.
Propane: ALOHA model plume mapping for a propane (UN ID# 1075) release is shown in the
following maps. The first map in each section shows the extent of a propane plume release. The
second map shows the area affected in the event that the tank car explodes in a BLEVE scenario.
Some of the major parameters used in plume development include:
• Incident occurs in mid-July with an air temperature of 85oF;
• Wind is from the west at 9 miles per hour;
• Size of railroad tank care is 34,397 gallons;
• Tank diameter of 10.66 feet; and
• The rupture in the tank car is a 10-inch diameter hole located near the bottom of the tank
car.
Detailed parameters are contained in Appendix C. Critical facilities within the plume are also
shown on the maps.
Sulfuric Acid: Sulfuric acid is not considered a toxic material that will create a toxic vapor plume
during a release. Nevertheless, it but can form a gray cloud, and when this cloud mixes with
water vapor to form a white cloud, it is heavier than air. The mixing of sulfuric acid with water
results in a highly exothermic reaction. A rail spill of sulfuric acid due to derailment caused by a
flooding event is a realistic scenario in the coastal areas of Contra Costa County. Sulfuric acid
can be neutralized with soda ash or lime.
Evacuation guidelines are contained with the ERG, and the isolation distance in the event that a
fire is involved is ½ mile in all directions. Although there is no stated isolation distance in the event
of a sulfuric acid spill, or a spill into water, the ERG guidelines with respect to fire should be used
as a basis for evacuation and mitigation.
Some of the major parameters used development of the isolation distance map for sulfuric acid
at each of the 5 pinch points are as follows:
• Incident occurs in mid-July with an internal tank temperature of 85oF;
• Size of railroad tank care is 13,350 gallons;
• Tank diameter of eight (8) feet; and
• The rupture in the tank car is a 10-inch diameter hole located near the bottom of the tank
car.
Critical facilities within the plume are also shown on the maps.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
101
5.1 Pinch Point – Richmond #1
At the Richmond #1 pinch point, it will be assumed that the hazardous materials spill of a COC
will result from an incident with a rail tank car holding 34,397 gallons of the
ammonia/anhydrous ammonia (worst-case scenario), a rail tank car holding 34,397 gallons of
propane as LPG (worst-case scenario), and 13,350 gallons of sulfuric acid (worst-case
scenario). The individual details are contained in the sections below.
Criteria used in the identification of the pinch point are summarized in the table below. Maps
showing some of the criteria used in the determination of the pinch point are shown following
the table.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
102
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
103
5.1.1 Scenario 1: Ammonia
ALOHA model plume mapping at Pinch Point Richmond #1 for an ammonia/anhydrous
ammonia (UN ID# 1005) release is shown in the following map. The ammonia plume is
extensive and is over 6 miles long and up to 2 miles wide. The Red Threat Zone is
approximately 2 miles long and up to a mile wide and covers a significant portion of the
residential and commercial areas of east Richmond and El Cerrito. Although the prevailing
wind direction is from the west, seasonal variations result in the wind direction coming
from the north. This will place areas southeast and south at risk from an ammonia release.
Areas to the southeast are also residential and commercial. Much of the area to the south
is either industrial or part of San Francisco Bay.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
104
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
105
5.1.2 Scenario 2: Propane
ALOHA model plume mapping at Pinch Point Richmond #1 for propane (UN ID# 1075)
release is shown in the following maps. The first map shows the extent of a propane plume
release. The second map shows the area affected in the event that the tank car explodes
in a BLEVE scenario.
The propane plume is approximately 1 mile long and up to ½ mile wide. The Red Threat
Zone is approximately ½ mile long and up to ¼ mile wide. The entire plume covers a
portion of the residential area of east Richmond and El Cerrito. Although the prevailing
wind direction is from the west, seasonal variations result in the wind direction coming
from the north. This will place a limited area southeast and south at risk from propane
incident release. Areas to the southeast are also residential. Much of the area to the
south is primarily industrial.
The second map shows the propane BLEVE scenario. In this scenario the area affected
is known as the Thermal Radiation Threat Zone and is approximately ¾ mile from the
source, and the Red Threat Zone extends approximately ¼ mile from the source. In
general, areas to the northwest, north, east, and southeast are primarily residential; areas
to the west and south are industrial.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
106
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
107
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
108
5.1.3 Scenario 3: Sulfuric Acid
The sulfuric acid (UN ID #1830) release isolation zone at Pinch Point Richmond #1 is
shown in the following map. According to ERG guidelines, the isolation distance in the
event that a fire is involved is ½ mile in all directions. Although slightly less extensive in
area, the isolation zone is similar to the Propane BLEVE scenario. In general, areas to
the northwest, north, east, and southeast are primarily residential; areas to the west and
south are industrial.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
109
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
110
5.2 Pinch Point – Richmond #2
At the Richmond #2 pinch point, it will be assumed that the hazardous materials spill of a COC
will result from an incident with a rail tank car holding 34,397 gallons of the ammonia/
anhydrous ammonia (worst-case scenario), a rail tank car holding 34,397 gallons of propane
as LPG (worst-case scenario), and 13,350 gallons of sulfuric acid (worst-case scenario). The
individual details are contained in the sections below.
Criteria used in the identification of the pinch point are summarized in the table below. Maps
showing some of the criteria used in the determination of the pinch point are shown following
the table.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
111
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
112
5.2.1 Scenario 1: Ammonia
ALOHA model plume mapping at Pinch Point Richmond #2 for an ammonia/anhydrous
ammonia (UN ID# 1005) release is shown in the following map. The ammonia plume is
extensive and is over 6 miles long and up to 2 miles wide. The Red Threat Zone is
approximately 2 miles long and up to a mile wide and covers a significant portion of the
residential and commercial areas of the central and downtown portion of the city of
Richmond. Although the prevailing wind direction is from the west, seasonal variations
result in the wind direction coming from the north. This will place areas southeast and
south at risk from an ammonia release. Areas to the southeast are also residential and
commercial with some industry. Much of the area to the south is either industrial or part
of San Francisco Bay.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
113
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
114
5.2.2 Scenario 2: Propane
ALOHA model plume mapping at Pinch Point Richmond #2 for propane (UN ID# 1075)
release is shown in the following maps. The first map shows the extent of a propane plume
release. The second map shows the area affected in the event that the tank car explodes
in a BLEVE scenario.
The propane plume is approximately 1 mile long and up to ½ mile wide. The Red Threat
Zone is approximately ½ mile long and up to ¼ mile wide. The entire plume covers a
portion of the commercial and residential area of Richmond, including the downtown area.
Although the prevailing wind direction is from the west, seasonal variations result in the
wind direction coming from the north. This will place a limited area southeast and south
at risk from a propane incident. Areas to the southeast are also residential. Much of the
area to the south is primarily industrial.
The second map shows the Propane BLEVE scenario. In this scenario the area affected
is known as the Thermal Radiation Threat Zone and is approximately ¾ mile from the
source, and the Red Threat Zone extends approximately ¼ mile from the source. In
general, areas to the northeast, east, and southeast are primarily commercial and
residential; areas to the northwest, west, and south are industrial.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
115
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
116
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
117
5.2.3 Scenario 3: Sulfuric Acid
The sulfuric acid (UN ID #1830) release isolation zone at Pinch Point Richmond #2 is
shown in the following map. According to ERG guidelines, the isolation distance in the
event that a fire is involved is ½ mile in all directions. Although slightly less extensive in
area, the isolation zone is similar to the Propane BLEVE scenario. In general, areas to
the northeast and east are primarily residential; areas to the west and south are industrial.
.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
118
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
119
5.3 Pinch Point – Martinez #3
At the Martinez #3 pinch point, it will be assumed that the hazardous materials spill of a COC
will result from an incident with a rail tank car holding 34,397gallons of the
ammonia/anhydrous ammonia (worst-case scenario), a rail tank car holding 34,397 gallons of
propane as LPG (worst-case scenario), and 13,350 gallons of sulfuric acid (worst-case
scenario). The individual details are contained in the sections below.
Criteria used in the identification of the pinch point are summarized in the table below. Maps
showing some of the criteria used in the determination of the pinch point are shown following
the table.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
120
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
121
5.3.1 Scenario 1: Ammonia
ALOHA model plume mapping at Pinch Point Martinez #3 for an ammonia/anhydrous
ammonia (UN ID# 1005) release is shown in the following map. The ammonia plume is
extensive and is over 6 miles long and up to 2 miles wide. The Red Threat Zone is
approximately 2 miles long and up to a mile wide and covers the industrial area northeast
of the city of Martinez, including oil refineries. Although the prevailing wind direction is
from the west, seasonal variations result in the wind direction coming from the north. This
will place areas southeast and south at risk from an ammonia release. Areas to the
southeast are also industrial. Much of the area to the south is partly industrial and partly
residential.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
122
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
123
5.3.2 Scenario 2: Propane
ALOHA model plume mapping at Pinch Point Martinez #3 for propane (UN ID# 1075)
release is shown in the following maps. The first map shows the extent of a propane plume
release. The second map shows the area affected in the event that the tank car explodes
in a BLEVE scenario.
The propane plume is approximately 1 mile long and up to ½ mile wide. The Red Threat
Zone is approximately ½ mile long and up to ¼ mile wide. The entire plume covers a
portion of the industrial area in the northeastern part of Martinez. Although the prevailing
wind direction is from the west, seasonal variations result in the wind direction coming
from the north. This will place the industrial area south of the pinch point at risk from a
propane incident.
The second map shows the Propane BLEVE scenario. In this scenario the area affected
is known as the Thermal Radiation Threat Zone and is approximately ¾ mile from the
source, and the Red Threat Zone extends approximately ¼ mile from the source. The
entire area affected by this scenario is industrial, including oil refineries.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
124
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
125
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
126
5.3.3 Scenario 3: Sulfuric Acid
The sulfuric acid (UN ID #1830) release isolation zone at Pinch Point Martinez #3 is shown
in the following map. According to ERG guidelines, the isolation distance in the event that
a fire is involved is ½ mile in all directions. Although slightly less extensive in area, the
isolation zone is similar to the Propane BLEVE scenario. The entire isolation zone is
industrial, including oil refineries.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
127
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
128
5.4 Pinch Point – Bay Point #4
At the Bay Point #4 pinch point, it will be assumed that the hazardous materials spill of a COC
will result from an incident with a rail tank car holding 34,397 gallons of the
ammonia/anhydrous ammonia (worst-case scenario), a rail tank car holding 34,397 gallons of
propane as LPG (worst-case scenario), and 13,350 gallons of sulfuric acid (worst-case
scenario). The individual details are contained in the sections below.
Criteria used in the identification of the pinch point are summarized in the table below. Maps
showing some of the criteria used in the determination of the pinch point are shown following
the table.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
129
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
130
5.4.1 Scenario 1: Ammonia
ALOHA model plume mapping at Pinch Point Bay Point #4 for an ammonia/anhydrous
ammonia (UN ID# 1005) release is shown in the following map. The ammonia plume is
extensive and is over 6 miles long and up to 2 miles wide. The Red Threat Zone is
approximately 2 miles long and up to a mile wide, and covers the industrial area and
natural open land area along Suisun Bay north of the cities of Bay Point and Pittsburg.
Although the prevailing wind direction is from the west, seasonal variations result in the
wind direction coming from the north. This will place areas southeast and south at risk
from an ammonia release. Areas to the southeast are within the commercial, residential,
and downtown areas of both Bay Point and Pittsburg.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
131
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
132
5.4.2 Scenario 2: Propane
ALOHA model plume mapping at Pinch Point Bay Point #4 for propane (UN ID# 1075)
release is shown in the following maps. The first map shows the extent of a propane plume
release. The second map shows the area affected in the event that the tank car explodes
in a BLEVE scenario.
The propane plume is approximately 1 mile long and up to ½ mile wide. The Red Threat
Zone is approximately ½ mile long and up to ¼ mile wide. The entire plume covers the
industrial and natural open land area north of the city of Bay Point. Although the prevailing
wind direction is from the west, seasonal variations result in the wind direction coming
from the north. This will place primarily industrial area to the southeast and south at risk
from a propane incident. Areas beyond this zone to the southeast are residential.
The second map shows the Propane BLEVE scenario. In this scenario the area affected
is known as the Thermal Radiation Threat Zone and is approximately ¾ mile from the
source, and the Red Threat Zone extends approximately ¼ mile from the source. In
general, the entire area is either industrial, natural open lands, or part of Suisun Bay.
Areas beyond this zone to the southeast are residential.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
133
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
134
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
135
5.4.3 Scenario 3: Sulfuric Acid
The sulfuric acid (UN ID #1830) release isolation zone at Pinch Point Bay Point #4 is
shown in the following map. According to ERG guidelines, the isolation distance in the
event that a fire is involved is ½ mile in all directions. Although slightly less extensive in
area, the isolation zone is similar to the Propane BLEVE scenario. The entire isolation
zone in industrial and natural open land areas, including part of Suisun Bay.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
136
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
137
5.5 Pinch Point – Antioch #5
At the Antioch #5 pinch point, it will be assumed that the hazardous materials spill of a COC
will result from an incident with a rail tank car holding 34,397 gallons of the
ammonia/anhydrous ammonia (worst-case scenario), a rail tank car holding 34,397 gallons of
propane as LPG (worst-case scenario), and 13,350 gallons of sulfuric acid (worst-case
scenario). The individual details are contained in the sections below.
Criteria used in the identification of the pinch point are summarized in the table below. Maps
showing some of the criteria used in the determination of the pinch point are shown following
the table.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
138
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
139
5.5.1 Scenario 1: Ammonia
ALOHA model plume mapping at Pinch Point Antioch #5 for an ammonia/anhydrous
ammonia (UN ID# 1005) release is shown in the following map. The ammonia plume is
extensive and is over 6 miles long and up to 2 miles wide. The Red Threat Zone is
approximately 2 miles long and up to a mile wide, and covers an industrial area, natural
open lands area, and the northern part of the city of Antioch, including part of the
downtown area, as well as part of Suisun Bay. Although the prevailing wind direction is
from the west, seasonal variations result in the wind direction coming from the north. This
will place areas southeast and south at risk from an ammonia release. Areas to the
southeast are within the commercial, residential, and downtown areas of Antioch.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
140
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
141
5.5.2 Scenario 2: Propane
ALOHA model plume mapping at Pinch Point Antioch #5 for propane (UN ID# 1075)
release is shown in the following maps. The first map shows the extent of a propane plume
release. The second map shows the area affected in the event that the tank car explodes
in a BLEVE scenario.
The propane plume is approximately 1 mile long and up to ½ mile wide. The Red Threat
Zone is approximately ½ mile long and up to ¼ mile wide. The entire plume covers the
industrial and natural open land area northwest of the city of Antioch. Although the
prevailing wind direction is from the west, seasonal variations result in the wind direction
coming from the north. This will place primarily industrial area to the southeast and south
at risk from a propane incident. Areas beyond this zone to the southeast are residential.
The second map shows the Propane BLEVE scenario. In this scenario the area affected
is known as the Thermal Radiation Threat Zone and is approximately ¾ mile from the
source, and the Red Threat Zone extends approximately ¼ mile from the source. In
general, the entire area is either industrial, natural open lands, or part of Suisun Bay.
Areas beyond this zone to the southeast are residential.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
142
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
143
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
144
5.5.3 Scenario 3: Sulfuric Acid
The sulfuric acid (UN ID #1830) release isolation zone at Pinch Point Antioch #5 is shown
in the following map. According to ERG guidelines, the isolation distance in the event that
a fire is involved is ½ mile in all directions. Although slightly less extensive in area, the
isolation zone is similar to the Propane BLEVE scenario. The entire isolation zone in
industrial and natural open land areas, including part of Suisun Bay.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
145
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
146
6.0 Integration of Data with GIS
Following this Flow Study, CCHSHMP will be working to display hazardous materials related data,
along with sea level rise and flood data, in a GIS format. GIS mapping will be used to further
communicate, display, and identify areas of concern as it relates to hazardous materials and
flooding.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
147
7.0 Emergency Response and Mitigation
Data from the Commodity Flow Study portion of this project were used to determine the 5 pinch
points which were used for chemical plume analysis. All of the pinch points were located along
railroad lines in the coastal areas of Contra Costa County, and portions of the areas surrounding
the pinch points are potentially subjected to rising tides. Determination of the pinch points was
based on numerous criteria as outlined in Section 4.1 of this report, including the following:
• Rising Tides data and areas most susceptible to rising tides and sea level rise;
• California Healthy Places Index indicating vulnerable populations;
• Liquefaction Susceptibility data;
• Location of CalARP Facilities;
• Locations of Critical Facilities;
• Chemicals of Concern;
• Weather data;
• Railroad Locations; and
• Critical Arterial Road Locations.
In addition to the above criteria, vulnerable populations are located in the vicinity of many of the
pinch points, and they typically contain lower and middle income housing, as well as numerous
public buildings, medical facilities, shelters and community centers, and schools.
In addition, weather patterns indicate that the 2 major wind directions occur in the coastal cities
of Contra Costa County. The major wind direction is from the west and occurs for 9 to ten (10)
months of the year. The alternate wind direction is from the north and occurs for 2 to 3 months
of the year. The chemical plume analysis utilized the predominant westerly wind direction;
however, the plume footprints can change with the change in wind direction.
The ammonia/anhydrous ammonia plume is the most toxic plume that has been mapped at each
of the pinch points. In the event that an evacuation is required due to an ammonia release
incident, evacuations could be undertaken to remove vulnerable populations from the immediate
incident area. Shelters could be set up, generally in areas outside the complete footprint of the
plume in facilities such as schools, churches, and public buildings. In addition, shelter-in-place
procedures may need to be implemented to protect the population in the area. Shelter in place
may be critical in the event that the release has occurred in flooded areas, and evacuation is not
practicable or possible.
An incident involving ammonia could have catastrophic effects on these populations. The best
approach to mitigate such an incident is a proactive approach, which allows properly equipped
and trained first responders to immediately respond to an incident and work to mitigate/terminate
the source of the incident. This approach is paramount to preventing a massive reactive approach
which would include movement and protection of a large vulnerable population.
The propane and sulfuric acid plumes cover a much smaller footprint than the ammonia plume
and would be considered of lower toxicity than the ammonia plume. A propane explosion or
BLEVE occurs almost instantaneously, and rapid emergency response, including evacuation, is
necessary. Emergency response to a non-BLEVE propane release or a sulfuric acid release
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
148
should be similar to an ammonia release; however, evacuation may not be necessary depending
upon the circumstances. The most important aspect of immediate response to a propane or
sulfuric acid release is to allow properly equipped and trained first responder to proactively
mitigate/terminate the source of the incident. Flooding in the release area may complicate the
response actions.
The locations of the natural gas transmission pipelines and hazardous liquid pipelines within the
coastal areas of Contra Costa County are known, and the major lines are often collocated along
the railroad lines, particularly in the coastal areas. In order to mitigate any negative results due
to a release incident along the pipelines, the first responders should coordinate with the pipeline
operators to immediately isolate the affected lines. Isolation will ensure that a minimal amount of
the population is affected by the incident. In addition, evacuation procedures should be in place
to quickly and efficiently remove the affected populations from the areas impacted by the incident.
The vulnerable populations within and adjacent to each of the 5 pinch point locations are at high
risk in the event of a major hazardous materials incident. Because of this situation, a proactive
approach to initial response by first responders, is the best approach, as it reduces the need for
an overarching reactive response. There are 3 elements to this approach:
• Proper protective and response equipment, which will allow first responders to react
proactively, quickly, and efficiently to a major hazardous materials release incident.
• Comprehensive training, including focused training of first responders to act both
proactively and reactively to a major hazardous materials release incident.
• Mutual aid agreements with local, and state agencies that can immediately provide
additional manpower, equipment, and trained assistance to a major hazardous materials
release incident.
A proactive approach in equipping and training first responders will serve to protect the vulnerable
populations within the County in the event of a transportation-related hazardous material
accident/incident. This approach will also minimize disruption of essential services, facilities, and
infrastructure, and will ultimately save lives and property.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
149
8.0 Summary
The goals and results of the Flow Study and Community Risk Assessment are summarized
below.
The Flow Study reviewed rail transport of hazardous chemicals through the County, and
particularly within areas of the county where the rail lines may be susceptible to rising tides and
flooding risks from changes in our climate. Chemical data from industries in the County helped
to determine what types of hazardous chemicals were being transported through the County via
rail. Three chemicals of concern (COCs) were determined from the railroad data, and these
chemicals (ammonia/anhydrous ammonia, propane, and sulfuric acid) were used in the plume
analysis in the CRA portion of this report.
Based on the information obtained from the Flow Study, a series of vulnerable points (“pinch
points”) were determined from rising tides data and potential flooding, primarily along the rail lines,
California Healthy Places data, liquefaction resulting from earthquakes, locations of CalARP
facilities, specific COCs, background weather data, locations of railroads and critical arterial
roadways, and locations of critical facilities including areas of vulnerable populations. Once
specific pinch points were located, a comprehensive CRA, including a chemical plume analysis,
was performed to assess worst-case scenarios related to a COC release incident at these
locations.
The Flow Study and CRA were completed as a follow-on study to the San Francisco Bay
Conservation and Development Commission Adaption to Rising Tides (ART) project. The current
project titled Hazardous Materials Commodity Flow Study with Special Focus on Sea Level Rise
and Flood Risk, fostered a greater understanding on how major hazardous materials
transportation, such as Contra Costa County rail system, could be impacted by sea level
rise/flooding and how the increased risk for hazardous materials incidents that could affect the
health and safety of our community.
Goals of the project included identifying risks from hazardous materials release due to possible
disruption of transportation due to sea level rise/flooding as predicted by the Adapting to Rising
Tides program and the effect of a release of various portions of the County, including critical
facilities and vulnerable populations through toxic plume mapping using ALOHA technology.
Identifying these issues will help the County to better address and plan for hazardous materials
releases in order to protect and promote health, safety, and wellbeing of Contra Costa residents.
Historical railroad and highway data were available from the “Hazardous Materials Transportation
Study for Contra Costa County. Additional highway flow study data were also available from
Marin County (2014) and Solano County (2016). The data used here from Marin and Solano
Counties were compiled for the entry points from these counties into Contra Costa, specifically
along Interstate Highways I-580 (Marin) and I-80 and I-680 (Solano).
The Flow Study also incorporated railroad commodity information from 2016 through 2018, which
was made available from UP and BNSF. The railroad data aided in the identification of the COCs:
ammonia/anhydrous ammonia, propane, and sulfuric acid.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
150
Pipeline data, including identification and locations of hazardous liquid and gas transmission
pipelines were also included as a reference in this report. In many areas, including the coastal
areas, the pipelines are often co-located with the railroad lines. An incident along one of these
transportation routes could potentially affect the other. Pipeline incidents dating from 2008 were
listed and located on the pipeline maps.
Railroads in Contra Costa County consist primarily of the following railroad lines: UP, BNSF,
RPRC, and BART. UP and BNSF transport the majority of commercial traffic, including hazardous
materials throughout the coastal areas of Contra Costa County. Rail lines located along the
shorelines serve as a first line of defense against inland flooding, also known as ad hoc flood
protection. Disruption of rail line transportation can have significant impacts on the movement of
goods through Contra Costa County, particularly alternate transportation along roadways. In the
event of flooding due to rising tides, the stability of the rail lines in some areas (ballast and track
bed materials) may be at risk of becoming structurally unsound. In addition, groundwater table
rise due to climate change could also result in the instability of the rail lines due to the potential
damage to track bed and ballast materials. Certain areas of the rail lines are in areas at risk of
high to very high liquefaction in the event of an earthquake.
Railroad incidents involving hazardous materials were reviewed from the time period of 2000
through 2019. A review of the above data indicates the following trends:
• Major cause of total rail incidents is derailment;
• Major causes of hazardous materials spill incidents are derailment, leaking train cars, and
collision;
• Both UP and BNSF lines contained the major portion of the total rail incidents, as these
are the major rail lines in the area;
• UP had a higher percentage of hazardous materials spill incidents than BNSF;
• Total rail incidents were located primarily in the cities of Richmond, Martinez, Pittsburg,
Rodeo, and Crockett; and.
• Hazardous materials spill incidents were located primarily in Richmond, Martinez, Rodeo,
and Crockett.
Information concerning highway and roadway incidents was limited, but some Contra Costa
County data were available from the period of 2010 through 2019, and nationwide data were
available from 2010 through 2016. The nationwide data indicated that the number of hazardous
materials incidents occurs in about 12 to 14 times per 10,000 total truck trips. These numbers
can be extrapolated to Contra Costa County, although there may be an increase in the
frequency/rate of the incidents due to the following:
• High traffic volumes in a heavily populated urban area;
• Increased frequency of transportation of hazardous materials along arterial roadways; and
• Increased number of incidents because of flooding due to rising tides.
Disruption of commercial rail traffic could result in increased commodity flow via trucks along
various arterial roads and highways in the vicinity of the pinch points. This also results in a higher
risk of a hazardous materials incident occurring along the roadways. In addition, inundation of
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
151
the areas of the pinch points by water, due to rising tides or disruption of rail traffic due to seismic
events could also affect the ability to move commercial goods via roadways.
In consideration of transporting hazardous materials via rail, primarily within rail tanker cars, it
should be noted that one tanker car can generally contain 2 to 3 times the amount of commodity
than one tanker truck. Based on the comparison of the amount of trucks that would be required
to transport specific hazardous materials, such as sulfuric acid, which would normally be
transported by rail would be dependent on the amount of rail cars that would be disrupted on a
time-dependent basis. Unless, materials can be transported on still-operating rail lines or through
the ports, then the additional stress in highway transport will be significant. In the event of a large
rail incident scenario, a major disruption of commerce through the County could result in a
cessation of manufacturing operations for an unspecified amount of time. It is also possible that
highway transport may not be a viable option in areas of flooding, as the roadways themselves
may also be closed.
The 5 pinch points were determined during this study for extended analysis in the event that a
hazardous materials incident/accident occurred at these locations. The pinch points, which are
all positioned along railroad lines, were located as follows:
• Richmond #1: I-580 at Meade Street
• Richmond #2: Richmond Parkway South of MacDonald Avenue
• Martinez #3: Shell Avenue and Marina Vista Avenue
• Bay Point #4: Nichols Road North of Port Chicago Highway
• Antioch #5: End of Arcy Lane
The determination of the pinch points was dependent in part on the following parameters, which
were used to perform the CRA:
• Rising Tides data and areas most susceptible to rising tides and sea level rise;
• California Healthy Places Index indicating vulnerable populations;
• Liquefaction Susceptibility data;
• Location of CalARP Facilities;
• Locations of Critical Facilities;
• Chemicals of Concern;
• Weather data;
• Railroad Locations; and
• Critical Arterial Road Locations.
A critical aspect of the determination of pinch points is an analysis of flooding due to rising tides
and sea level rise, including king tides and storm surges. Data was compiled using the ART
Shoreline Flood Explorer on-line maps for three different scenarios:
• 12-Inch Sea Level Rise, Equivalent to King Tide with no Sea Level Rise;
• 24-inch Sea Level Rise, Equivalent to 5-Year Storm Surge with no Sea Level Rise; and
• 36-Inch Sea Level Rise, Equivalent to 50-Year Storm Surge with no Sea Level Rise.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
152
For purposes of the CRA, only the 12-inch Sea Level Rise, equivalent to a King Tide with no Sea
Level Rise was used in the Chemical Plume Analysis section of this report.
As a note, levee failure was not included as a potential flood scenario in this project.
The California Healthy Places Index (HPI) was used as an aid to determine more vulnerable
populations for the Community Risk Assessment, including areas of lower income residential
development. Various HPI indicators and decision support layers were used to determine the
HPI into the following categories ranging from “less” to “more” healthy conditions:
• 0-25 (least);
• 25-50;
• 50-75; or
• 75-100 (most).
Large areas of high to very high susceptibility to liquefaction during a seismic event are located
in the coastal areas of Contra Costa County. Liquefaction occurs where saturated sand and silt
assume the characteristics of a liquid during an intense shaking during an earthquake. These
areas are considered to be vulnerable to disruption of rail and road traffic, as a result of an incident
during an earthquake.
Locations of CalARP facilities aided in the determination of the pinch points, as hazardous
chemical from some of the CalARP sites were transported through the area along the railroads
and roadways. Some of the CalARP facilities are considered to be critical operating facilities, as
they include water treatment and energy generation /transfer facilities, as well as large economic
centers.
The locations of critical facilities were used as an aid in determining the locations of the pinch
points. Many of these facilities are relevant to other hazards than the release of hazardous
materials. As a result, and for the purposes of this CRA, critical facilities will refer to facilities that
may contain vulnerable or essential emergency populations that will require mitigation/evacuation
in the event of a hazardous materials release.
Critical facilities located in the coastal areas of Contra Costa County can be summarized as
follows:
• City, County, Federal Buildings
• Fire Stations
• Hospitals and Emergency Medical Care
• Nursing and Convalescent Homes
• Community Centers/Shelters
• Schools
Based on the Flow Study data from the railroads, it was determined that the following 3 chemicals
of concern would be used in the Chemical Plume Analysis in the CRA portion of this study to
cover worst-case scenario situations at the pinch points in the event of a hazardous materials
incident/accident :
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
153
• Ammonia/anhydrous ammonia: highly toxic;
• Propane: highly explosive and commonly transported along the railroads in Contra Costa
County; and
• Sulfuric acid: commonly transported along the railroads in Contra Costa County.
Weather for the coastal regions of Contra Costa County was available for several cities within the
County. For the most part, weather patterns for the coastal cities are very similar. This
information was used as the basis of the weather patterns for this study. Wind direction is a critical
component of toxic plume analysis, as it determines the direction which the plume will travel over
the land surface. Based on the weather data, it was determined that in that the major wind
direction from the west occurred throughout most of the year. As a result, the plume analysis
utilized in this report covered an incident occurring in July.
Each of the pinch points discussed in the CRA are located along or adjacent to railroad lines.
These locations are considered to be higher risk. Many of the rail lines are co-located with
underground pipelines, particularly along the coastal areas. Portions of the rail lines are located
in areas of 12-inch (and greater) sea level rise, as well as in some areas of high to very high
liquefaction which could be caused by earthquake events. Rail lines in these areas could become
compromised, resulting in potential hazardous materials incidents due to derailment or other
causes. In addition, disruption of commercial rail traffic could result in significant increases in
commodity flow along major arterial roadways and highways throughout the coastal areas of
Contra Costa County. It is also important to note that the rail lines that act as ad hoc flood
protection could result in more significant flooding in surrounding areas due to overtopping effects.
Plume diagrams for release of hazardous materials from the pinch points were determined using
the CAMEO suite of programs created by the U.S. Environmental Protection Agency (EPA). The
CAMEO suite consists of CAMEO chemicals, ALOHA plume modeling through various release
scenarios, and MARPLOT, which assists in plotting the information onto various map bases, such
as Google Earth.
The plume diagrams are utilized in determining the extent of threat zones based on the release
of a particular chemical. Three threat zones were mapped for each chemical release:
• Red zone: Highest threat level
• Orange Zone: Moderate threat level
• Yellow Zone: Low threat level
Chemical Plume Analysis for the CRA was based on the following general parameters:
• Weather conditions;
• COCs; and
• Worst-case scenario conditions.
Ammonia/anhydrous ammonia is one of the highest production chemicals in the United States. It
is used in manufacturing, refrigeration, and as an agricultural fertilizer, and is common in
household chemicals. Ammonia can be absorbed into the body by inhalation, ingestion, and by
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
154
skin and eye contact. A poisonous and visible vapor cloud is produced when ammonia comes in
contact with water. Ammonia is extremely corrosive, and when it mixes with air it forms an
explosive mixture. Although anhydrous ammonia is classified by the U.S Department of
Transportation (USDOT) as nonflammable, ammonia vapor is flammable at concentrations of
15% to 28% by volume of air.
Propane is a by-product of natural gas processing and crude oil refining and is produced from
liquid components recovered during natural gas processing. Propane is a colorless, highly
flammable liquefied gas and is one of the main components of liquid petroleum gas (LPG).
Propane is biodegradable, and will readily evaporate into the environment. Inhalation of propane
in minor amounts is not considered toxic; however, large amounts of propane in the air can
displace oxygen and act as an asphyxiant. Skin absorption and ingestion of propane is not
anticipated, although contact with propane in the liquid phase may result in frostbite.
Propane is highly flammable and explosive, and spillages of large quantities of liquid propane will
vaporize to propane gas. Propane vapors can travel considerable distances. An ignition source
may cause propane to ignite, flash back, and explode. Propane explosions can result in Boiling
Liquid Expanding Vapor Explosion (BLEVE). The U.S. Department of Transport Emergency
Response Guidebook (ERG) has determined general evacuation distances to be undertaken in
the event of propane-induced BLEVE.
Sulfuric acid is a highly corrosive material. Spill cleanup of large spills of sulfuric acid should be
undertaken by isolating the spill area with diking materials, including isolation from waterways.
The acid can be treated with soda ash or lime, although neutralization will resolve a release of
heat. Sulfuric acid is not flammable, but can be highly reactive with combustible materials.
Sulfuric acid spills are not considered as toxic, but can form a gray cloud. If sulfuric acid is mixed
with water, it reacts vigorously forming an exothermic reaction. A vapor cloud of sulfuric acid can
mix with water or water vapor to form a white cloud, which, based on the specific gravity is heavier
than air.
Evacuation guidelines for sulfuric acid are contained with the ERG, and the isolation distance in
the event that a fire is involved is ½ mile in all directions. Although there is no stated isolation
distance in the event of a sulfuric acid spill, or a spill into water, the ERG guidelines with respect
to fire were used as a basis for evacuation and mitigation.
Plume diagrams were produced using the ALOHA modeling program for the 5 determined pinch
points located within coastal area of Contra Costa County At each of the pinch points, the ALOHA
plume maps for ammonia and propane were produced based on the following data:
• Incident occurs in mid-July with an air temperature of 85oF;
• Wind is from the west at 9 miles per hour;
• Size of railroad tank care is 34,397 gallons;
• Tank diameter of 10.66 feet; and
• The rupture in the tank car is a 10-inch diameter hole located near the bottom of the tank
car.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
155
The ammonia plume is extensive and is over 6 miles long and up to 2 miles wide. The Red Threat
Zone is approximately 2 miles long and up to a mile wide.
The propane plume is approximately 1 mile long and up to ½ mile wide. The Red Threat Zone is
approximately ½ mile long and up to ¼ mile wide. In the BLEVE scenario, the area affected is
known as the Thermal Radiation Threat Zone and is approximately ¾ mile from the source, and
the Red Threat Zone extends approximately ¼ mile from the source.
Sulfuric acid is not considered a toxic material that will create a toxic vapor plume during a release,
and the ALOHA modeling program could not be used for this chemical. Although there is no
stated isolation distance in the event of a sulfuric acid spill, or a spill into water, the ERG guidelines
with respect to fire were used as a basis for evacuation and mitigation. Some of the major
parameters used development of the isolation distance map for sulfuric acid at each of the 5 pinch
points are as follows:
• Incident occurs in mid-July with an internal tank temperature of 85oF;
• Size of railroad tank care is 13,350 gallons;
• Tank diameter of 8 feet; and
• The rupture in the tank car is a 10-inch diameter hole located near the bottom of the tank
car.
Pinch Point Richmond #1
Pinch Point Richmond #1 is located along a major north-south rail corridor in the city of
Richmond. Most of the cirtical facilities for Pinch Point Richmond #1 are located east of the
pinch point, which is equivalent to the prevailing downwind direction. Much of this area is in
commercial and residential land use. Most of the area west and southwest of the pinch point
is industrial.
The ammonia plume is extensive and is over 6 miles long and up to 2 miles wide. The Red
Threat Zone for the ammonia plume is approximately 2 miles long and up to a mile wide and
covers a significant portion of the residential and commercial areas of east Richmond and El
Cerrito. Although the prevailing wind direction is from the west, seasonal variations result in
the wind direction coming from the north. This will place areas southeast and south at risk
from an ammonia release. Areas to the southeast are also residential and commercial. Much
of the area to the south is either industrial or part of San Francisco Bay.
The entire propane plume covers a portion of the residential area of east Richmond and El
Cerrito. Although the prevailing wind direction is from the west, seasonal variations result in
the wind direction coming from the north. This will place a limited area southeast and south
at risk from propane incident release. Areas to the southeast are also residential. Much of
the area to the south is primarily industrial.
Under the propane BLEVE scenario, the Thermal Radiation Threat Zone and is approximately
¾ mile from the source, and the Red Threat Zone extends approximately ¼ mile from the
source. In general, areas to the northwest, north, east, and southeast are primarily residential;
areas to the west and south are industrial.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
156
The sulfuric acid release isolation zone, although slightly less extensive in area, is similar to
the propane BLEVE scenario. In general, areas to the northwest, north, east, and southeast
are primarily residential; areas to the west and south are industrial.
Pinch Point Richmond #2
Pinch Point Richmond #2 is located along a major north-south rail corridor and rail siding in
the city of Richmond. Most of the cirtical facilities for Pinch Point Richmond #2 are located
east of the pinch point, which is equivalent to the prevailing downwind direction. Much of this
area is in commercial and residential land use. Downtown Richmond is located directly east
of the pinch point. Most of the area west of the pinch point is industrial.
The ammonia plume is extensive and is over 6 miles long and up to 2 miles wide. The Red
Threat Zone for the ammonia plume is approximately 2 miles long and up to a mile wide and
covers a significant portion of the residential and commercial areas of the central and
downtown portion of the city of Richmond. Although the prevailing wind direction is from the
west, seasonal variations result in the wind direction coming from the north. This will place
areas southeast and south at risk from an ammonia release. Areas to the southeast are also
residential and commercial with some industry. Much of the area to the south is either
industrial or part of San Francisco Bay.
The entire propane plume covers a portion of the commercial and residential area of
Richmond, including the downtown area. Although the prevailing wind direction is from the
west, seasonal variations result in the wind direction coming from the north. This will place a
limited area southeast and south at risk from a propane incident. Areas to the southeast are
also residential. Much of the area to the south is primarily industrial.
Under the propane BLEVE scenario, the Thermal Radiation Threat Zone and is approximately
¾ mile from the source, and the Red Threat Zone extends approximately ¼ mile from the
source. In general, areas to the northeast, east, and southeast are primarily commercial and
residential; areas to the northwest, west, and south are industrial.
The sulfuric acid release isolation zone, although slightly less extensive in area, is similar to
the propane BLEVE scenario. In general, areas to the northeast, east, and southeast are
primarily commercial and residential; areas to the northwest, west, and south are industrial.
Pinch Point Martinez #3
Pinch Point Martinez #3 is located along the major UP rail line entering the Martinez area from
the coast to the west. Most of the cirtical facilities for Pinch Point Martinez #3 are located
southwest and south of the pinch point. Much of the area southwest of the pinch point is in
commercial and residential land use and downtown Matinez is located in this direction. Most
of the area to the south of the pinch point is residential. Industrial areas, including oil
refineries, are located east of the pinch point, which is equivalent to the downwind direction.
Industrial areas are also located north and west of the pinch point.
The ammonia plume is extensive and is over 6 miles long and up to 2 miles wide. The Red
Threat Zone for the ammonia plume is approximately 2 miles long and up to a mile wide and
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
157
covers the industrial area northeast of the city of Martinez, including oil refineries. Although
the prevailing wind direction is from the west, seasonal variations result in the wind direction
coming from the north. This will place areas southeast and south at risk from an ammonia
release. Areas to the southeast are also industrial. Much of the area to the south is partly
industrial and partly residential.
The entire propane plume covers a portion of the industrial area in the northeastern part of
Martinez. Although the prevailing wind direction is from the west, seasonal variations result
in the wind direction coming from the north. This will place the industrial area south of the
pinch point at risk from a propane incident.
Under the propane BLEVE scenario, the Thermal Radiation Threat Zone and is approximately
¾ mile from the source, and the Red Threat Zone extends approximately ¼ mile from the
source. The entire area affected by this scenario is industrial, including oil refineries.
The sulfuric acid release isolation zone, although slightly less extensive in area, is similar to
the propane BLEVE scenario. The entire isolation zone is industrial, including oil refineries.
Pinch Point Bay Point #4
Pinch Point Bay Point #4 is located at the intersection of the major UP and BNSF rail lines
heading east from Martinez. Most of the cirtical facilities for Pinch Point Bay Point #4 are
located east-southeast of the pinch point. The major portion of the cities of Bay Point and
Pittsburg, including the commercial, residentia,l and downtown areas of these cities. These
cities are partially downwind of the prevaiing wind direction. The area directly west of the
pinch point are primarily industrial and natural coastal areas.
The ammonia plume is extensive and is over 6 miles long and up to 2 miles wide. The Red
Threat Zone for the ammonia plume is approximately 2 miles long and up to a mile wide, and
covers the industrial area and natural open land area along Suisun Bay north of the cities of
Bay Point and Pittsburg. Although the prevailing wind direction is from the west, seasonal
variations result in the wind direction coming from the north. This will place areas southeast
and south at risk from an ammonia release. Areas to the southeast are within the commercial,
residential, and downtown areas of both Bay Point and Pittsburg.
The entire propane plume covers the industrial and natural open land area north of the city of
Bay Point. Although the prevailing wind direction is from the west, seasonal variations result
in the wind direction coming from the north. This will place primarily industrial area to the
southeast and south at risk from a propane incident. Areas beyond this zone to the southeast
are residential.
Under the propane BLEVE scenario, the Thermal Radiation Threat Zone and is approximately
¾ mile from the source, and the Red Threat Zone extends approximately ¼ mile from the
source. In general, the entire area is either industrial, natural open lands, or part of Suisun
Bay. Areas beyond this zone to the southeast are residential.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
158
The sulfuric acid release isolation zone, although slightly less extensive in area, is similar to
the propane BLEVE scenario. The entire isolation zone in industrial and natural open land
areas, including part of Suisun Bay.
Pinch Point Antioch #5
Pinch Point Antioch #5 is along the BNSF rail heading east from Martinez. Most of the cirtical
facilities for Pinch Point Antioch #5 are located east and east-southeast (downwind) of the
pinch point and includes a major portion of the city of Antioch, including the commercial,
residential, and downtown areas of the city. The area surrounding the pinch point are primarily
industrial and natural coastal areas.
The ammonia plume is extensive and is over 6 miles long and up to 2 miles wide. The Red
Threat Zone is approximately 2 miles long and up to a mile wide, and covers an industrial
area, natural open lands area, and the northern part of the city of Antioch, including part of
the downtown area, as well as part of Suisun Bay. Although the prevailing wind direction is
from the west, seasonal variations result in the wind direction coming from the north. This will
place areas southeast and south at risk from an ammonia release. Areas to the southeast
are within the commercial, residential, and downtown areas of Antioch.
The entire propane plume covers the industrial and natural open land area northwest of the
city of Antioch. Although the prevailing wind direction is from the west, seasonal variations
result in the wind direction coming from the north. This will place primarily industrial area to
the southeast and south at risk from a propane incident. Areas beyond this zone to the
southeast are residential.
Under the propane BLEVE scenario, the Thermal Radiation Threat Zone and is approximately
¾ mile from the source, and the Red Threat Zone extends approximately ¼ mile from the
source. In general, the entire area is either industrial, natural open lands, or part of Suisun
Bay. Areas beyond this zone to the southeast are residential.
The sulfuric acid release isolation zone, although slightly less extensive in area, is similar to
the propane BLEVE scenario. The entire isolation zone in industrial and natural open land
areas, including part of Suisun Bay.
Hazardous Materials Commodity Flow Study with
Special Focus on Sea Level Rise and Flood Risk
Contra Costa County, California
August 2019
TAIT Environmental Services, Inc.
159
9.0 Concluding Statement
A Commodity Flow Study was prepared from historical and currently available railroad and
highway data. Based on the results of the Flow Study, 3 COCs were identified to be used in the
Community Risk Assessment portion of this report. Based on the COCs and other criteria,
including rising tide data from the ART program, California Healthy Places Index, liquefaction
susceptibility, CalARP facilities, locations of critical facilities, weather conditions, railroad
locations, and critical arterial road locations, 5 pinch points were located in the coastal areas of
Contra Costa County.
The pinch points were used to prepare the Community Risk Assessment and chemical plume
analysis to determine worst-case scenario effects of a release of the ammonia/anhydrous
ammonia, propane, and sulfuric acid, which were designated as the most critical COCs.
Based on the results of the chemical plume analysis, general emergency response procedures
were outlined to allow for emergency response to a chemical release incident. Emergency
response covers proper protective and response equipment, comprehensive training for
emergency responders, and in-place mutual agreements with local agencies to allow for merging
and pooling of emergency response resources.
The addition of the potential flooding of low-lying coastal areas of the county, including residential,
commercial, and industrial areas, may serve to complicate emergency response to an incident,
and additional measures may need to be implemented to adequately respond to a flooding
situation at the site of a release incident.
A proactive approach in equipping and training first responders will serve to protect the
vulnerable populations within the County in the event of a transportation-related hazardous
material accident/incident. This approach will also minimize disruption of essential services,
facilities, and infrastructure, and will ultimately save lives and property.
The East Contra Costa and Bay Area Wide Adapting to Rising Tides projects are still ongoing at
the time of the completion of this report. Both projects are anticipated to conclude in winter of
2019 and the final project reports and data will be available on the BCDC website
www.adaptingtorisingtides.org/.
APPENDICES
APPENDIX A
Hazardous Liquid Pipeline Details
APPENDIX A-1
Richmond Area Pipeline Data
RL1. SFPP, LP Non-HVL Product Pipeline LS-70; (NIS) RICHMO
RL2. SFPP, LP Non-HVL Product Pipeline LS-71; LS-89 – RICH
RL3. Phillips 66 Pipeline, LLC, Non-HVL Product Pipeline 2258_35
RL4. SFPP, LP Non-HVL Product Pipeline LS-75; IMTT/TIME
RL5. SFPP, LP Non-HVL Product Pipeline LS-37; AMORCO-RIC
RL6. SFPP, LP Non-HVL Product Pipeline LS-8; RICHMOND-CO
RL7. Phillips 66 Pipeline, LLC Non-HVL Product Pipeline 2258_35
RL8. SFPP, LP Non-HVL Product Pipeline LS-46/41; RICHMOND
RL9. Shell Pipeline Co., LP Non-HVL Product Pipeline 854529
RL10. Chevron Pipeline Co.; Non-HVL Product Pipeline CAL0001
APPENDIX A-2
Crockett Area Pipeline Data
CL1. Shell Pipeline Co., LP Non-HVL Product Pipeline 854529
CL2. SFPP, LP Non-HVL Product Pipeline LS-37; AMORCO-RIC
CL3. SFPP, LP Non-HVL Product Pipeline LS-8; RICHMOND-CO
CL4. Shell Pipeline Co.; Non-HVL Product Pipeline 854214
CL5. Phillips 66 Pipeline LLC Non-HVL Product Pipeline 2258_05
CL6. Phillips 66 Pipeline LLC Non-HVL Product Pipeline 2258_15
CL7. Phillips 66 Pipeline LLC Non-HVL Product Pipeline 2260_60
CL8. Nustar Terminals Operations Non-HVL Product Pipeline 775
CL9. Phillips 66 Pipeline LLC Crude Oil Pipeline 2260_65
CL10. DOD Defense Energy Support Non-HVL Product Pipeline 0064
APPENDIX A-3
Martinez Area Pipeline Data
ML1. Shell Pipeline Co., LP Non-HVL Product Pipeline 854214
ML2. SFPP, LP Non-HVL Product Pipeline LS-37; AMORCO-RIC
ML3. Shell Pipeline Co., LP; Non-HVL Product Pipeline 305
ML4. Shell Pipeline Co., LP; Non-HVL Product Pipeline 306
ML5. DOD Defense Energy Support; Non-HVL Product Pipeline 0064
ML6. Phillips 66 Pipeline, LLC; Crude Oil Pipeline 2260_60
ML7. Chevron Pipeline Co; Non-HVL Pipeline CAL0001
ML8. SFPP, LP; Non-HVL Pipeline LS-8; RICHMOND-CO
ML9. Phillips 66 Pipeline, LLC; Non-HVL Pipeline 2234_615
ML10. Shell Pipeline Co., LP; Crude Oil Pipeline 490
ML11. SFPP, LP; Non-HVL Pipeline LS-72; RODEO-CONC
ML12. Valero Refining Co. CA; Crude Oil Pipeline TRANSBAY_20IN
ML13. SFPP, LP; Non-HVL Pipeline LS-47; (NIS) CONCOR
ML14. SFPP, LP; Non-HVL Pipeline LS-130A; CONCORD-WA
ML15. Tesoro Logistics Operations; Non-HVL Pipeline 609
ML16. Tesoro Logistics Operations; Crude Oil Pipeline 611
ML17. Tesoro Logistics Operations; Crude Oil Pipeline 612
ML18. Plains Marketing, LP; Non-HVL Product Pipeline 14937
ML19. Phillips 66 Pipeline, LLC; Crude Oil Pipeline 2260_50
ML20. SFPP, LP; Non-HVL Product Pipeline LS-90/50/60; CONCOR
ML21. SFPP, LP; Non-HVL Product Pipeline LS-27; MARTINEZ-C
ML22. SFPP, LP; Non-HVL Product Pipeline LS-33; MOCOCO JCT
ML23. Shell Pipeline Co., LP; Crude Oil Pipeline 92
ML24. Plains Marketing, LP; Non-HVL Pipeline 15588
ML25. SFPP, LP; Non-HVL Pipeline LS-16; CONCORD-SA
ML26. Phillips 66 Pipeline, LLC; Crude Oil Pipeline 2260_42
ML27. SFPP, LP; Non-HVL Product Pipeline LS-9; CONCORD-BRADSHAW-10”
ML28. Shell Pipeline Co., LP; Crude Oil Pipeline 92
ML29. Phillips 66 Pipeline, LLC; Crude Oil Pipeline 2260_40
ML30. Chevron Pipeline, Co; Non-HVL Product Pipeline CAL0002-3
ML31. Crimson Pipeline, LP; Crude Oil Pipeline 76
ML32. New Operator Pending; Natural Gas Liquids Pipeline 0770
ML33. Chevron Pipeline Co.; Non-HVL Product Pipeline CAL0006B
ML34. Tesoro Logistics Operations; Crude Oil Pipeline 1107
ML35. Tesoro Logistics Operations; Crude Oil Pipeline 1107
APPENDIX A-4
Pittsburg Area Pipeline Data
PL1. Crimson Pipeline, LP Crude Oil Pipeline 76
PL2. SFPP, LP Non-HVL Product Pipeline LS-90/50/60; CONCOR
PL3. Chevron Pipeline Co., Non-HVL Product Pipeline CAL0002-8
PL4. SFPP, LP; Non-HVL Product Pipeline LS-9; Concord-BRA
PL5. Crimson Pipeline, LP Crude Oil Pipeline 499
PL6. Abandoned Pittsburg-Antioch Pipeline 31590
APPENDIX B
Critical Facilities Data
APPENDIX B-1
CRITICAL FACILITIES: RICHMOND PINCH POINT #1
Critical Facility Category Critical Facility Street Addess City State Latitude Longitude
City and County Buildings El Cerrito Building Inspection 10890 San Pablo Ave.El Cerrito CA 37.915730 -122.311030
El Cerrito Police Department 10900 San Pablo Ave.El Cerrito CA 37.916210 -122.311490
Kensington Police Department 217 Arlington Ave.Kensington CA 37.913850 -122.280670
Bayview Branch Public Library 5100 Hartnett Ave.Richmond CA 37.915187 -122.323848
El Cerrito Library-Contra Costa County Library 6510 Stockton Ave.El Cerrito CA 37.908499 -122.303988
Kensington Library-Contra Costa County Library 61 Arlington Ave.Kensington CA 37.913179 -122.281082
Fire Stations Richmond Fire Department Station 64 4801 Bayview Ave.Richmond CA 37.914680 -122.323770
El Cerrito Fire Department 10900 San Pablo Ave.El Cerrito CA 37.916210 -122.311490
Kensington Fire District 217 Arlington Ave.Kensington CA 37.913850 -122.280670
Hospitals/Emergency Care Castro Therapy Unit 1435 Lawrence St.El Cerrito CA 37.920390 -122.304560
New MD & Urgent Care 10612 San Pablo Ave.El Cerrito CA 37.911990 -122.307410
Kensington Clinic 60 Arlington Ave.El Cerrito CA 37.929730 -122.304330
Kensington Physical Therapy 303 Arlington Ave.Kensington CA 37.903309 -122.277489
UHS Surgical Services 3427 Regatta Blvd.Richmond CA 37.919381 -122.334950
Nursing/Convalescent El Cerrito Royale 6510 Gladys Ave.El Cerrito CA 37.919320 -122.311930
Community Centers/Shelters Booker T. Anderson Community Center 960 S. 47th St.Richmond CA 37.918610 -122.326740
Monterey Pines Community Room 680 S. 37th St.Richmond CA 37.923210 -122.333950
St. Johns Community Center 6500 Gladys Ave.El Cerrito CA 37.919470 -122.312050
El Cerrito Midtown Activity Center 10940 San Pablo Ave. El Cerrito CA 37.916750 -122.311770
El Cerrito Community Center 7007 Moeser Lane El Cerrito CA 37.914620 -122.302880
Kensington Community Center 59 Arlington Ave.Kensington CA 37.903660 -122.278310
Schools/Preschools Fairmont Elementary 724 Kearney St. El Cerrrito CA 37.915670 -122.310430
Kensington Elementary 90 Highland Blvd.Kensington CA 37.914170 -122.278950
Wilson Elementary 7150 Portola Dr.El Cerrito CA 37.915370 -122.302390
Stege Elementary 4949 Cypress Ave.Richmond CA 37.919800 -122.322390
El Cerrito High School 540 Ashbury Ave.El Cerrito CA 37.906170 -122.294390
Summit Public Schools 1800 Elm St.El Cerrito CA 37.925720 -122.312990
Caliber Beta Academy 4301 Berk Ave.Richmond CA 37.922720 -122.327400
Kennedy High School 4300 Cutting Blvd.Richmond CA 37.925170 -122.329290
King elementary 4022 Florida Ave.Richmond CA 37.929430 -122.347640
Little House Preschool 4443 Potrero Ave.Richmond CA 37.920910 -122.318720
Keystone Montessori Pre-School 6639 Blake St.El Cerrito CA 37.923240 -122.312620
Sycamore Christian School 1111 Navellier St.El Cerrito CA 37.917280 -122.301330
Pride and Joy Pre-School 1226 Liberty St.El Cerrito CA 37.916010 -122.308380
El Cerrito Preschool Co-op 7200 Moeser Ln. El Cerrito CA 37.915080 -122.300620
Nomura Preschool 1711 Carlson Blvd.Richmond CA 37.909490 -122.315100
Little Inti Daycare Preschool Everett and Eureka El Cerrito CA 37.907740 -122.299730
Ocean View Montessori Day Care 717 Clayton Ave.El Cerrito CA 37.909060 -122.297820
APPENDIX B-2
CRITICAL FACILITIES: RICHMOND PINCH POINT #2
Critical Facility Category Critical Facility Street Addess City State Latitude Longitude
City and County Buildings Richmond Police Department 1701 Regatta Blvd.Richmond CA 37.917180 -122.349950
Richmond Police Commission 450 Civic Center Plaza Richmond CA 37.937590 -122.343210
Richmond City Hall 450 Civic Center Plaza Richmond CA 37.937590 -122.343210
Richmond Humn Resources Department 2544 Barrett Ave.Richmond CA 37.935900 -122.329300
Richmond Emergency Services Office 440 Civic Center Plaza Richmond CA 37.936800 -122.342890
Richmond Memorial Convention Center 403 Civic Center Plaza Richmond CA 37.937020 -122.344130
Machalilla 430 Civic Center Plaza Richmond CA 37.936320 -122.343490
Richmond Private Industry Council 330 25th St.Richmond CA 37.936690 -122.345260
Richmond City Recreation Complex 3230 MacDonald Ave.Richmond CA 37.934120 -122.338210
Richmond Building Services 6 13th St.Richmond CA 37.931520 -122.356890
Memorial Youth Center 213 S. 33rd St.Richmond CA 37.927950 -122.338100
Richmond Sewer Maintenance 3200 Regatta Blvd.Richmond CA 37.916680 -122.340190
Richmond Housing Community 1401 Marina Way S.Richmond CA 37.912750 -122.356290
Port of Richmond Administration 1411 Harbour Way S.Richmond CA 37.913680 -122.361470
Contra Costa County Office of the Public Defender 3811 Bissell Ave.Richmond CA 37.933070 -122.333110
Contra Costa County Victim Witness 100 S. 37th St.Richmond CA 37.930740 -122.334520
Contra Costa Supervisor Office 11780 San Pablo Ave.El Cerrito CA 37.917910 -122.313270
Contra Costa County Employment and Human Services 4006 MacDonald Ave.Richmond CA 37.917910 -122.313270
Contra Costa County Perinatal Services 100 38th St.Richmond CA 37.932394 -122.332973
Contra Costa County Court 100 S. 37th St.Richmond CA 37.930763 -122.334445
Contra Costa County Community Center 300 S. 27th St.Richmond CA 37.927288 -122.343399
West County Housing Corporation 170 21st St.Richmond CA 37.933608 -122.349156
Contra Costa County Children and Family Services 1275 Hall Ave.Richmond CA 37.914901 -122.357240
Contra Costa County Probation 1275 Hall Ave. Richmond CA 37.914901 -122.357240
Richmond Public Library 325 Civic Center Plaza Richmond CA 37.935987 -122.344111
Contra Costa County Law Library 100 37th St.Richmond CA 37.932619 -122.333994
Northern Regional Library 1301 S. 46th St.Richmond CA 37.917708 -122.334969
Northern Regional Library Facility 400 S. 47th St.Richmond CA 37.917454 -122.335430
Fire Stations Richmond Fire Department Station 61 140 W. Richmond Ave.Richmond CA 37.926169 -122.385421
Richmond Fire Department Station 67 1131 Cutting Blvd.Richmond CA 37.925532 -122.358283
Richmond Fire Department Station 62 1065 7th St.Richmond CA 37.947760 -122.365558
Richmond Fire Department Station 66 4100 Clinton Ave.Richmond CA 37.940417 -122.328887
Richmond Fire Department 440 Civic Center Plaza Richmond CA 37.936800 -122.342890
Hospitals/Emergency Care Kaiser Permanente Richmond Medical Center 901 Nevin Ave.Richmond CA 37.937222 -122.360545
LifeLong Brookside Richmond Health Center 1030 Nevin Ave.Richmond CA 37.936649 -122.359183
LifeLong William Jenkins health Center 150 Harbour Way Richmond CA 37.933379 -122.359809
RotaCare Bay Area Richmond Clinic 256 24th St.Richmond CA 37.935025 -122.346134
LifeLong Brazell H. Carter health Center 2600 MacDonald Ave.Richmond CA 37.934913 -122.343620
Nevin House 3215 Nevin Ave.Richmond CA 37.935720 -122.337902
Community Clinic Consortium 3720 Barrett Ave.Richmond CA 37.936308 -122.333293
Contra Costa County Mental 100 38th St.Richmond CA 37.932344 -122.332983
UHS Surgical Services 3427 Regatta Blvd.Richmond CA 37.919361 -122.334909
Kaiser Permanente School of Allied Health 938 Marina Way Richmond CA 37.918565 -122.354768
Nursing/Convalescent El Cerrito Royale 6510 Gladys Ave.El Cerrito CA 37.919027 -122.311572
Shields-Richmond Nursing Center 1919 Cutting Blvd.Richmond CA 37.925546 -122.350905
Grace Homes Residential Care 423 McLaughlin St. Richmond CA 37.934253 -122.323838
Grace Homes Assisted Living 527 McLaughlin Richmond CA 37.936061 -122.324613
Palm Tree Care Home 712 McLaughlin Richmond CA 37.941350 -122.326462
Rosewood Residence Assisted Living 5311 Garvin Ave.Richmond CA 37.945339 -122.324934
Richmond Post-Acute Care 955 23rd St.Richmond CA 37.946382 -122.347785
TLC Home Care Agency 13201 San Pablo Ave.San Pablo CA 37.951585 -122.333290
Community Centers/Shelters Booker T. Anderson Community Center 960 S. 47th St.Richmond CA 37.918503 -122.326794
St. Johns Community Center 6500 Gladys Ave.El Cerrito CA 37.919494 -122.312036
El Cerrito Midtown Activity Center 10940 San Pablo Ave. El Cerrito CA 37.916793 -122.311746
El Cerrito Community Center 7007 Moeser Lane El Cerrito CA 37.914847 -122.303138
E.M. Downer Family YMCA 263 S. 20th St.Richmond CA 37.928575 -122.350715
Bobby Bowen Progressive Center 2540 MacDonald Ave.Richmond CA 37.935046 -122.344440
Nevin Community Center 598 Nevin Ave.Richmond CA 37.936607 -122.363998
Atchison Village Mutual Homes Corp.270 Curry St.Richmond CA 37.934701 -122.371511
Point Richmond Community Center 139 Washington Richmond CA 37.926558 -122.385314
Catholic Charities of the East Bay West County Service Center 217 Harbour Way Richmond CA 37.934488 -122.360148
Bay Area Rescue Mission 200 MacDonald Ave.Richmond CA 37.935415 -122.367472
Bay Area Rescue Mission 2114 MacDonald Ave.Richmond CA 37.935566 -122.349177
West Contra Costa Family Justice Center 256 24th St.Richmond CA 37.935033 -122.346123
Rubicon Programs 2500 Bissell Ave.Richmond CA 37.933693 -122.345300
Rubicon Programs 101 Broadway Richmond CA 37.933031 -122.346266
Richmond Emergency Food Pantry 2369 Barrett Ave.Richmond CA 37.938622 -122.345982
House Rabbit Society 148 Broadway Richmond CA 37.932930 -122.345447
Good NewZ Pittie Pups Rescue 2369 Brooks Ave.Richmond CA 37.941010 -122.345846
The Milo Foundation 220 S. Garrard Blvd.Richmond CA 37.928634 -122.379965
Schools Arlington Christian School 6382 Arlington Blvd.Richmond CA 37.940956 -122.312302
APPENDIX B-2
CRITICAL FACILITIES: RICHMOND PINCH POINT #2
Critical Facility Category Critical Facility Street Addess City State Latitude Longitude
Mira Vista Elementary 6397 Hazel Avenue Richmond HeightsCA 37.941057 -122.313808
De Jean Middle School 3400 MacDonald Ave.Richmond CA 37.932582 -122.336903
Stege Elementary 4949 Cypress Ave.Richmond CA 37.920019 -122.322952
Summit Public Schools 1800 Elm St.El Cerrito CA 37.925312 -122.313563
Caliber Beta Academy 4301 Berk Ave.Richmond CA 37.922820 -122.328938
Kennedy High School 4300 Cutting Blvd.Richmond CA 37.924780 -122.328610
King elementary 4022 Florida Ave.Richmond CA 37.929096 -122.331587
Manzanita Charter Middle School 461 33rd St.Richmond CA 37.936665 -122.337477
Grant Elementary 2400 Downer Ave.Richmond CA 37.942513 -122.345048
St. Cornelius Catholic School 201 28th St.Richmond CA 37.933887 -122.342160
Coronado Elementary 2100 Maine Ave.Richmond CA 37.927785 -122.349510
Nystrom Elementary 230 Harbour Way S.Richmond CA 37.928159 -122.359269
Richmond College Prep Schools 1014 Florida Ave. Richmond CA 37.929065 -122.359316
West Contra Costa Costa Unified School District/Delta High 1108 Bissell Ave.Richmond CA 37.933594 -122.358640
Leadership Public Schools 880 Bissell Ave.Richmond CA 37.933805 -122.361142
Samuel Gompers Continuation School 831 Chanslor Ave.Richmond CA 37.933384 -122.361163
John Henry High 1402 Marina Way S.Richmond CA 37.912774 -122.354919
Peres Elementary 719 5th St.Richmond CA 37.942773 -122.364531
Chavez Elementary 960 17th St.Richmond CA 37.946992 -122.352907
Richmond High 1250 23rd St.Richmond CA 37.952453 -122.345902
Washington Elementary 565 Wine St.Richmond CA 37.924457 -122.380994
Downer Elementary 1231 18th St.San Pablo CA 37.952095 -122.352947
United Christian College 3219 MacDonald Ave.Richmond CA 37.934653 -122.338147
Little house Preschool 4443 Potrero Ave.Richmond CA 37.921264 -122.327371
Richmond Children's Academy 2900 Cutting Rd.Richmond CA 37.924958 -122.341429
Curious Explorers Academy 4121 MacDonald Ave.Richmond CA 37.933663 -122.330236
A Little World Montessori 374 37th St.Richmond CA 37.934432 -122.333815
Happy Brown Bears Pre-school 2225 Gaynor Ave.Richmond CA 37.944706 -122.347760
La Petite Academy of Richmond 1221 Nevin Ave.Richmond CA 37.937552 -122.357002
APPENDIX B-3
CRITICAL FACILITIES: MARTINEZ PINCH POINT #3
Critical Facility Category Critical Facility Street Addess City State Latitude Longitude
City and County Buildings Martinez City Hall 525 Henrietta St.Martinez CA 38.014112 -122.135351
Martinez Planning and Zoning 525 Henrietta St.Martinez CA 38.014112 -122.135351
Martinez Police Department 525 Henrietta St.Martinez CA 38.014112 -122.135351
Martinez Water Department 525 Henrietta St.Martinez CA 38.014112 -122.135351
Martinez Detention Facility 1000 Ward St.Martinez CA 38.017912 -122.133154
Martinez traffic Signal Maintenance 2467 Waterbird Way Martinez CA 38.001369 -122.073085
Contra Costa County Jail 901 Court St.Martinez CA 38.017168 -122.132167
Contra Costa County Court Records 1111 Ward St.Martinez CA 38.018607 -122.133033
Contra Costa county Sheriff's Office 651 Pine St.Martinez CA 38.019302 -122.133676
Contra Costa County Sheriff-Criminalistics 1122 Escobar St.Martinez CA 38.019518 -122.133310
Contra Costa County Sheriff 500 Court St.Martinez CA 38.019112 -122.135273
Contra Costa County Sheriff Department 1980 Muir Rd.Martinez CA 37.989702 -122.085985
Contra Costa County Sheriff-Technical Services 30 Glacier Dr.Martinez CA 37.990742 -122.086928
Contra Costa Public Works Surplus 4785 Blum Rd.Martinez CA 38.000368 -122.073975
Contra Costa County Public Works Department 255 Glacier Dr.Martinez CA 37.988076 -122.086851
Contra Costa County Flood Control 2475 Waterbird Way Martinez CA 37.999965 -122.071539
Contra Costa Animal Services Department 4800 Imhoff Pl.Martinez CA 37.999225 -122.071217
Contra Costa County Library-Martinez Branch 740 Court Street Martinez CA 38.017990 -122.134161
Contra Costa County Law Library 1020 Ward St.Martinez CA 38.018074 -122.132927
Degan Medical Library 2500 Alhambra Ave.Martinez CA 38.006961 -122.132743
Fire Stations Contra Costa Fire Station 12 1240 Shell Ave.Martinez CA 38.010631 -122.118225
Contra Costa Fire Station 14 521 Jones St.Martinez CA 38.012950 -122.134297
Hospitals/Emergency Care Contra Costa Regional Medical Center 2500 Alhambra Ave.Martinez CA 38.006789 -122.132804
Contra Costa County-Martinez Health Center 2500 Alhambra Ave.Martinez CA 38.006789 -122.132804
Telecare Hope House 300 Ilene St.Martinez CA 38.008029 -122.133843
Kaisere Permanente 200 Muir Rd.Martinez CA 37.993657 -122.110355
Nursing/Convalescent Alhambra Convalescent Hospital 331 Ilene St.Martinez CA 38.008379 -122.133399
Tender Touch Residential Care 58 Midhill Dr.Martinez CA 37.997924 -122.098379
Martinez Convalescent Home 4110 Alhambra Way Martinez CA 37.993374 -122.128530
Legacy Nursing and Rehab 1790 Muir Rd.Martinez CA 37.988972 -122.090789
Community Centers/Shelters Northern California Family Center 2244 Pacheco Blvd.Martinez CA 38.012737 -122.121054
City of Martinez Senior Center 818 Green St.Martinez CA 38.016676 -122.134297
Martinez Community and Economic Center 525 Henrietta St.Martinez CA 38.014112 -122.135351
Shell Clubhouse 1635 Pacheco Blvd.Martinez CA 38.014692 -122.125935
Mountain View Emergency Family Shelter 1391 Shell Ave.Martinez CA 38.012520 -122.118061
Contra Costa County Care Group 1350 Arnold Dr.Martinez CA 37.992109 -122.098600
Contra Costa County Adoption 2530 Arnold Dr.Martinez CA 37.992721 -122.078862
Schools Martinez Unified School District 921 Susana St.Martinez CA 38.014815 -122.132498
Martinez Early Intervention 921 Susana St.Martinez CA 38.014815 -122.132498
Creekside Montessori 1333 Estudillo St.Martinez CA 38.013748 -122.133144
St. Catherine of Siena School 604 Mellus St.Martinez CA 38.014694 -122.134897
Martinez Junior High School 1600 Court St.Martinez CA 38.013582 -122.130663
Alhambra High School 150 E St.Martinez CA 38.002629 -122.133375
American Indian Cultural and Education Program 600 F St.Martinez CA 38.000612 -122.130826
John Muir Elementary 205 Vista Way Martinez CA 38.000191 -122.120000
International Mission-Higher Education 1117 Brittany Hills Ct.Martinez CA 38.002084 -122.100287
Morello Park Elementary 1200 Morello Park Dr.Martinez CA 38.001644 -122.099178
Community Day Schools Program 3930 Pacheco Blvd.Martinez CA 38.008221 -122.095910
Las Juntas Elementary 4105 Pacheco Blvd.Martinez CA 38.008372 -122.092840
White Stone Christian Academy 1151 Polson Martinez CA 37.991556 -122.103172
Electrical Trade School 1255 Muir Rd.Martinez CA 37.990672 -122.099489
Mt. McKinley School 202 Glacier Dr.Martinez CA 37.988808 -122.087844
Contra Costa Community College District 500 N. Court St.Martinez CA 38.019142 -122.135067
Creekside Montessori 1333 Estudillo St.Martinez CA 38.013748 -122.133144
Morello Hills Christian Preschool and Daycary 1000 Morello Hills Dr. Martinez CA 38.000527 -122.103590
Forest Hills Preschool 127 Midhill Rd.Martinez CA 37.997407 -122.095239
Helping Hands Christian Preschool 1865 Arnold Dr.Martinez CA 37.992202 -122.089436
Sunshine House 4950 Pacheco Blvd.Martinez CA 37.996675 -122.076922
APPENDIX B-4
CRITICAL FACILITIES: BAY POINT PINCH POINT #4
Critical Facility Category Critical Facility Street Addess City State Latitude Longitude
City and County Buildings Pittsburg Housing Rehabilitation 710 Black Diamond St.Pittsburg CA 38.030467 -121.885856
Pittsburg Community Access 915 Cumberland St.Pittsburg CA 38.028210 -121.883603
Pittsburg Housing Authority 916 Cumberland St.Pittsburg CA 38.027961 -121.884400
Pittsburg Public Works Department 357 E. 12th St.Pittsburg CA 38.025882 -121.882888
Pittsburg City Engineeering 65 Civic Ave.Pittsburg CA 38.019983 -121.891780
Pittsburg City Center Center Dr.Pittsburg CA 38.019248 -121.891683
Pittsburg Police Department 65 Civic Ave.Pittsburg CA 38.019983 -121.891780
Contra Costa County Sheriff Department 659 Port Chicago Hwy.Bay Point CA 38.034690 -121.960503
Contra Costa County Community Services 2430 Willow Pass Rd.Bay Point CA 38.027363 -121.936615
Contra Costa County Community Services 3103 Willow Pass Rd.Bay Point CA 38.026323 -121.949583
Contra Costa County Public Health 215 Pacifica Ave.Bay Point CA 38.033785 -121.968129
Contra Costa County Small Claims Court 1000 Center Dr.Pittsburg CA 38.019357 -121.889802
Contra Costa County Municipal Court-Traffic Citations 45 Civic Ave.Pittsburg CA 38.021091 -121.890156
Bay Point Library-Contra Costa County Library 205 Pacifica Ave.Bay Point CA 38.033960 -121.967276
Pittsburg Library-Contra Costa County Library 80 Power Avenue Pittsburg CA 38.018858 -121.890875
Contra Costa County Public Law Library 1000 Center Drive Pittsburg CA 38.019272 -121.889942
Fire Stations Contra Costa Fire Station 87 800 W. Leland Ave.Pittsburg CA 38.014433 -121.919832
Contra Costa Fire Station 86 3000 Wllow Pass Rd.Pittsburg CA 38.027093 -121.948066
Hospitals/Emergency Care Pittsburg Health Center 2311 Loveridge Rd.Pittsburg CA 38.006538 -121.869691
Nursing/Convalescent Pittsburg Care Center 535 School Street Pittsburg CA 38.020257 -121.879342
Rose's Garden 372 Ocean Drive Pittsburg CA 38.021294 -121.916632
Westwood Residential Care 2228 Westwood Ct.Pittsburg CA 38.013779 -121.937522
Sivi Lay Elderly Home Care 2242 Mt. Whitney Dr.Pittsburg CA 38.011661 -121.931778
Community Centers/Shelters Ambrose Recreation and Park District 3105 Willow Pass Rd.Bay Point CA 38.026273 -121.949188
Teen Community Center 60 Civic Ave.Pittsburg CA 38.022657 -121.889648
People Who Care Children Association Youth Center 2231 Railroad Ave.Pittsburg CA 38.013586 -121.889909
Love-A-Child Missions Homeless Recovery Shelter 2279 Willow Pass Rd.Bay Point CA 38.026690 -121.934428
Pittsburg Family Center 84 W. 6th St.Pittsburg CA 38.032089 -121.886121
Pacific Community Services 329 Railroad Ave.Pittsburg CA 38.033064 -121.882999
Schools Rio Vista Elementary 611 Pacifica Ave.Bay Point CA 38.033776 -121.973884
Riverview Middle School 205 Pacifica Ave.Bay Point CA 38.033660 -121.967191
Gateway High School 235 Pacifica Bay Point CA 38.033677 -121.967174
New Jerusalem School 290 Anchor Dr.Bay Point CA 38.030529 -121.963251
Above and Beyond Academy 68 Amador Ct.Bay Point CA 38.023197 -121.940500
Bel Air Elementary 663 Canal Rd.Bay Point CA 38.020228 -121.937877
Willow Cove Elementary 1880 Hanlon Way Pittsburg CA 38.024522 -121.926921
Rancho Medanos Junior High School 2301 Range Rd.Pittsburg CA 38.015920 -121.912775
Shore Acres Elementary 351 Marina Rd.Pittsburg CA 38.035718 -121.969783
Rancho Medanos Junior High School 2301 Range Rd.Pittsburg CA 38.016630 -121.911927
Los Medanos Elementary School 610 Crowley Ave.Pittsburg CA 38.016794 -121.901093
Parkside Elementary 985 W. 17th St.Pittsburg CA 38.022699 -121.900094
St. Peter Martyr School 425 W. 4th St.Pittsburg CA 38.033796 -121.890735
Marina Vista 50 E. 8th St.Pittsburg CA 38.029231 -121.885830
Pittsburg School District Office 2000 Railroad Ave.Pittsburg CA 38.019804 -121.888679
Child Nutrition Services Department 2000 Railroad Ave.Pittsburg CA 38.019804 -121.888679
Pittsburg High School 1750 Harbor St.Pittsburg CA 38.019190 -121.881826
YMCA Contra Costa/Sacramento - Bay point 225 Pacifica Ave.Bay Point CA 38.032025 -121.967098
Kids First Academy 2340 Willow Pass Rd.Bay Point CA 38.026921 -121.935477
Mi Mi's Learning Center 2131 Riesling Ct. Pittsburg CA 38.016378 -121.923166
First Baptist Head Start 204 Odessa Ave.Pittsburg CA 38.036056 -121.890380
Railroad Junction School 2224 Railroad Ave.Pittsburg CA 38.013564 -121.891587
Pittsburg Pre-School and Community 1760 Chester Dr.Pittsburg CA 38.016808 -121.875283
Pittsburg KinderCare 150 E. Leland Rd.Pittsburg CA 38.011087 -121.889935
APPENDIX B-5
CRITICAL FACILITIES: ANTIOCH PINCH POINT #5
Critical Facility Category Critical Facility Street Addess City State Latitude Longitude
City and County Buildings Antioch City Hall 200 H St.Antioch CA 38.016712 -121.815191
Antioch Building Inspection Division 200 H St.Antioch CA 38.016712 -121.815191
Antioch City Marina 5 Marina Plaza Antioch CA 38.020070 -121.820229
Antioch Engineeing and Land 200 H St.Antioch CA 38.016712 -121.815191
Antioch Animal Services 300 L St.Antioch CA 38.016192 -121.820785
Antioch Public Works Department 1201 W. 4th St.Antioch CA 38.015480 -121.820933
Antioch City Purchasing 1307 W. 4th St.Antioch CA 38.015308 -121.822609
Antioch Lynn House Gallery 809 W. 1st St.Antioch CA 38.017450 -121.816608
Antioch City Human Resources 3rd St. and H St.Antioch CA 38.016231 -121.815042
Antioch Police Department 300 L St.Antioch CA 38.016192 -121.820785
East County Veterans Resource Center 708 W. 2nd St.Antioch CA 38.017103 -121.815375
Contra Costa Housing Choice 801 W. 8th St.Antioch CA 38.012440 -121.817132
Contra Costa County Event Center 1201 W. 10th St.Antioch CA 38.008732 -121.822840
Antioch Library-Contra Costa County Library 501 W. 18th Street Antioch CA 38.004716 -121.812695
Fire Stations Contra Costa Fire Station 81 315 W. 10th St.Antioch CA 38.010976 -121.810952
Contra Costa Fire Station 83 2717 Gentrytown Dr.Antioch CA 37.997322 -121.837802
Hospitals/Emergency Care Kaiser Antioch 3400 Delta Fair Blvd.Antioch CA 38.004428 -121.842125
Sutter Delta Medical Center 3901 Lone Tree Way Antioch CA 37.982569 -121.802908
John Muir Primary Care 3440 Hillcrest Ave.Antioch CA 37.986844 -121.780537
Kaiser Permanente Antioch Medical Center 4501 Sand Creek Rd.Antioch CA 37.950952 -121.775229
RotaCare Bay Area 2210 Gladstone Dr.Pittsburg CA 38.009467 -121.866036
Pittsburg Health Center 2311 Loveridge Rd. Pittsburg CA 38.006547 -121.869626
La Clinica Medical 2240 Gladstone Dr.Pittsburg CA 38.006922 -121.867712
Brighter Beginnings 2213 Buchanan Rd.Antioch CA 37.998344 -121.836101
Contra Costa Industrial Medical Clinic 2339 Buchanan Rd.Antioch CA 37.998256 -121.840827
Older Adults Clnic 3505 Lone Tree Way Antioch CA 37.987446 -121.806125
Nursing/Convalescent Antioch Convalescent Hospital 1201 A Street Antioch CA 38.009288 -121.806247
Independent Living Resource 301 W. 10th St.Antioch CA 38.010922 -121.810418
Amarylis Care Home 100 W. 20th St.Antioch CA 38.003659 -121.807026
Hilcrest Memory Care 825 E. 18th St.Antioch CA 38.005412 -121.791095
Lighthouse Mentoring Center 1925 Garden Ct.Antioch CA 38.002307 -121.792408
Country Place Assisted Living 1715 Olive Ln.Antioch CA 38.005809 -121.791674
Viera Residential Care Home 2129 Viera Ave.Antioch CA 38.001280 -121.771568
Community Centers/Shelters East County Shelter 1401 W. 4th St.Antioch CA 38.015349 -121.823755
East County Senior Coalition 301 W. 10th St.Antioch CA 38.010922 -121.810418
Community Outreach Center 525 E. 18th St.Antioch CA 38.005317 -121.795089
Shelter, Inc.4553 Delta Fair Blvd.Antioch CA 38.006207 -121.854410
Schools East County Elementary Special Education 4207 Delta Fair Blvd.Antioch CA 38.003377 -121.851461
Mission Elementary 1711 Mission Dr.Antioch CA 37.996817 -121.832163
Park Middle School 1 Spartan Way Antioch CA 37.993181 -121.814011
Belshaw Elementary 2801 Roosevelt Ln.Antioch CA 37.995322 -121.800307
The Child Day Schools 112 E. Tregallas Rd.Antioch CA 37.997345 -121.803021
Marsh Elementary 2304 G St.Antioch CA 38.000119 -121.816369
Bidwell Continuation High School 800 Gary Ave.Antioch CA 38.000087 -121.792597
Antioch High School 700 W. 18th St.Antioch CA 38.006321 -121.815937
Live Oak High School 1708 F St.Antioch CA 38.005615 -121.813065
Antioch Middle School 1500 D St.Antioch CA 38.005883 -121.812974
Fremont Elementary 1413 F. St.Antioch CA 38.007605 -121.812210
Holy Rosary Catholic School 25 E. 15th St.Antioch CA 38.007549 -121.804934
Kimball Elementary 1310 August Way Antioch CA 38.007934 -121.801303
Antioch Charter Academy 3325 Hacienda Way Antioch CA 37.988348 -121.826899
Antioch Charter Academy II 1201 W. 10th St.Antioch CA 38.009488 -121.822868
Prospects High School 820 W. 2nd St.Antioch CA 38.017147 -121.816797
Antioch Unified School District 510 G St.Antioch CA 38.014419 -121.814276
First Baptist Head Start 1203 W. 10th Antioch CA 38.010821 -121.824801
So Big Preschool 1201 W. 10th St.Antioch CA 38.008856 -121.822601
Vicky's Day Care & Preschool 84 Russell Dr.Antioch CA 38.003103 -121.814155
Imagination Academy Preschool 2032 Hillcrest Ave.Antioch CA 38.001454 -121.788335
Kids Clubs Preschool 800 Gary Ave.Antioch CA 38.000245 -121.791851
Mahogany Way Kinder Care 2300 Mahogany Way Antioch CA 38.003030 -121.832294
Little Lu Lu's christian Preschool 2725 Minta Ln.Antioch CA 37.996861 -121.815499
Corner Christian Preschool 2800 Sunset Ln.Antioch CA 37.995786 -121.804377
Harbour Light Preschool 1020 E. Tregallas Rd.Antioch CA 37.996569 -121.791437
La Petite Academy of Antioch 1350 E. Tregallas Rd.Antioch CA 37.995521 -121.787375
Los Medanos College 2700 E. Leland Rd.Antioch CA 38.005430 -121.860328
APPENDIX C
ALOHA Background Data
APPENDIX C-1
Pinch Point Richmond #1
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
1 0 1 2 3 4 5 62
1
0
1
2
miles
miles
greater than 1100 ppm (AEGL-3 [60 min])
greater than 160 ppm (AEGL-2 [60 min])
greater than 30 ppm (AEGL-1 [60 min])
wind direction confidence lines
Note: Threat zone picture is truncated at the 6 mile limit.
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: RICHMOND, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: AMMONIA
CAS Number: 7664-41-7 Molecular Weight: 17.03 g/mol
AEGL-1 (60 min): 30 ppm AEGL-2 (60 min): 160 ppm AEGL-3 (60 min): 1100 ppm
IDLH: 300 ppm LEL: 150000 ppm UEL: 280000 ppm
Ambient Boiling Point: -28.2° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
500 0 500 1000 1500750
250
0
250
750
yards
yards
greater than 33000 ppm (AEGL-3 [60 min])
greater than 17000 ppm (AEGL-2 [60 min])
greater than 5500 ppm (AEGL-1 [60 min])
wind direction confidence lines
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: RICHMOND, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
Thermal Radiation Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
1 0.5 0 0.5 10.75
0.25
0
0.25
0.75
miles
miles
greater than 10.0 kW/(sq m) (potentially lethal within 60 sec)
greater than 5.0 kW/(sq m) (2nd degree burns within 60 sec)
greater than 2.0 kW/(sq m) (pain within 60 sec)
wind
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: RICHMOND, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
BLEVE of flammable liquid in horizontal cylindrical tank
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid
Internal Storage Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Percentage of Tank Mass in Fireball: 100%
Fireball Diameter: 251 yards Burn Duration: 14 seconds
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
APPENDIX C-2
Pinch Point Richmond #2
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
1 0 1 2 3 4 5 62
1
0
1
2
miles
miles
greater than 1100 ppm (AEGL-3 [60 min])
greater than 160 ppm (AEGL-2 [60 min])
greater than 30 ppm (AEGL-1 [60 min])
wind direction confidence lines
Note: Threat zone picture is truncated at the 6 mile limit.
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: RICHMOND, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: AMMONIA
CAS Number: 7664-41-7 Molecular Weight: 17.03 g/mol
AEGL-1 (60 min): 30 ppm AEGL-2 (60 min): 160 ppm AEGL-3 (60 min): 1100 ppm
IDLH: 300 ppm LEL: 150000 ppm UEL: 280000 ppm
Ambient Boiling Point: -28.2° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
500 0 500 1000 1500750
250
0
250
750
yards
yards
greater than 33000 ppm (AEGL-3 [60 min])
greater than 17000 ppm (AEGL-2 [60 min])
greater than 5500 ppm (AEGL-1 [60 min])
wind direction confidence lines
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: RICHMOND, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
Thermal Radiation Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
1 0.5 0 0.5 10.75
0.25
0
0.25
0.75
miles
miles
greater than 10.0 kW/(sq m) (potentially lethal within 60 sec)
greater than 5.0 kW/(sq m) (2nd degree burns within 60 sec)
greater than 2.0 kW/(sq m) (pain within 60 sec)
wind
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: RICHMOND, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
BLEVE of flammable liquid in horizontal cylindrical tank
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid
Internal Storage Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Percentage of Tank Mass in Fireball: 100%
Fireball Diameter: 251 yards Burn Duration: 14 seconds
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
APPENDIX C-3
Pinch Point Martinez #3
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
1 0 1 2 3 4 5 62
1
0
1
2
miles
miles
greater than 1100 ppm (AEGL-3 [60 min])
greater than 160 ppm (AEGL-2 [60 min])
greater than 30 ppm (AEGL-1 [60 min])
wind direction confidence lines
Note: Threat zone picture is truncated at the 6 mile limit.
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: MARTINEZ, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: AMMONIA
CAS Number: 7664-41-7 Molecular Weight: 17.03 g/mol
AEGL-1 (60 min): 30 ppm AEGL-2 (60 min): 160 ppm AEGL-3 (60 min): 1100 ppm
IDLH: 300 ppm LEL: 150000 ppm UEL: 280000 ppm
Ambient Boiling Point: -28.2° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
500 0 500 1000 1500750
250
0
250
750
yards
yards
greater than 33000 ppm (AEGL-3 [60 min])
greater than 17000 ppm (AEGL-2 [60 min])
greater than 5500 ppm (AEGL-1 [60 min])
wind direction confidence lines
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: MARTINEZ, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
Thermal Radiation Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
1 0.5 0 0.5 10.75
0.25
0
0.25
0.75
miles
miles
greater than 10.0 kW/(sq m) (potentially lethal within 60 sec)
greater than 5.0 kW/(sq m) (2nd degree burns within 60 sec)
greater than 2.0 kW/(sq m) (pain within 60 sec)
wind
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: MARTINEZ, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
BLEVE of flammable liquid in horizontal cylindrical tank
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid
Internal Storage Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Percentage of Tank Mass in Fireball: 100%
Fireball Diameter: 251 yards Burn Duration: 14 seconds
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
APPENDIX C-4
Pinch Point Bay Point #4
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
1 0 1 2 3 4 5 62
1
0
1
2
miles
miles
greater than 1100 ppm (AEGL-3 [60 min])
greater than 160 ppm (AEGL-2 [60 min])
greater than 30 ppm (AEGL-1 [60 min])
wind direction confidence lines
Note: Threat zone picture is truncated at the 6 mile limit.
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: BAY POINT, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: AMMONIA
CAS Number: 7664-41-7 Molecular Weight: 17.03 g/mol
AEGL-1 (60 min): 30 ppm AEGL-2 (60 min): 160 ppm AEGL-3 (60 min): 1100 ppm
IDLH: 300 ppm LEL: 150000 ppm UEL: 280000 ppm
Ambient Boiling Point: -28.3° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 468 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
500 0 500 1000 1500750
250
0
250
750
yards
yards
greater than 33000 ppm (AEGL-3 [60 min])
greater than 17000 ppm (AEGL-2 [60 min])
greater than 5500 ppm (AEGL-1 [60 min])
wind direction confidence lines
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: BAY POINT, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.9° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 468 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
Thermal Radiation Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
1 0.5 0 0.5 10.75
0.25
0
0.25
0.75
miles
miles
greater than 10.0 kW/(sq m) (potentially lethal within 60 sec)
greater than 5.0 kW/(sq m) (2nd degree burns within 60 sec)
greater than 2.0 kW/(sq m) (pain within 60 sec)
wind
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: BAY POINT, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.9° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
BLEVE of flammable liquid in horizontal cylindrical tank
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid
Internal Storage Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Percentage of Tank Mass in Fireball: 100%
Fireball Diameter: 251 yards Burn Duration: 14 seconds
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
APPENDIX C-5
Pinch Point Antioch #5
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
1 0 1 2 3 4 5 62
1
0
1
2
miles
miles
greater than 1100 ppm (AEGL-3 [60 min])
greater than 160 ppm (AEGL-2 [60 min])
greater than 30 ppm (AEGL-1 [60 min])
wind direction confidence lines
Note: Threat zone picture is truncated at the 6 mile limit.
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: AMMONIA
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: ANTIOCH, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: AMMONIA
CAS Number: 7664-41-7 Molecular Weight: 17.03 g/mol
AEGL-1 (60 min): 30 ppm AEGL-2 (60 min): 160 ppm AEGL-3 (60 min): 1100 ppm
IDLH: 300 ppm LEL: 150000 ppm UEL: 280000 ppm
Ambient Boiling Point: -28.2° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 83.5 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 140,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 167,000 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 2.1 miles --- (1100 ppm = AEGL-3 [60 min])
Orange: 4.6 miles --- (160 ppm = AEGL-2 [60 min])
Yellow: greater than 6 miles --- (30 ppm = AEGL-1 [60 min])
Toxic Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
500 0 500 1000 1500750
250
0
250
750
yards
yards
greater than 33000 ppm (AEGL-3 [60 min])
greater than 17000 ppm (AEGL-2 [60 min])
greater than 5500 ppm (AEGL-1 [60 min])
wind direction confidence lines
wind
Source Strength (Release Rate) ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
0 1 2 3 0
50,000
100,000
150,000
200,000
minutes
pounds/minute
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: ANTIOCH, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
Leak from hole in horizontal cylindrical tank
Flammable chemical escaping from tank (not burning)
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid Internal Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Circular Opening Diameter: 10 inches
Opening is 5 inches from tank bottom
Release Duration: 2 minutes
Max Average Sustained Release Rate: 120,000 pounds/min
(averaged over a minute or more)
Total Amount Released: 136,200 pounds
Note: The chemical escaped as a mixture of gas and aerosol (two phase flow).
THREAT ZONE:
Model Run: Heavy Gas
Red : 469 yards --- (33000 ppm = AEGL-3 [60 min])
Orange: 671 yards --- (17000 ppm = AEGL-2 [60 min])
Yellow: 1142 yards --- (5500 ppm = AEGL-1 [60 min])
Thermal Radiation Threat Zone ALOHA® 5.4.7
Time: July 18, 2019 1200 hours PDT (user specified)
Chemical Name: PROPANE
Wind: 9 miles/hour from w at 3 meters
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
1 0.5 0 0.5 10.75
0.25
0
0.25
0.75
miles
miles
greater than 10.0 kW/(sq m) (potentially lethal within 60 sec)
greater than 5.0 kW/(sq m) (2nd degree burns within 60 sec)
greater than 2.0 kW/(sq m) (pain within 60 sec)
wind
Text Summary ALOHA® 5.4.7
SITE DATA:
Location: ANTIOCH, CALIFORNIA
Building Air Exchanges Per Hour: 0.85 (unsheltered single storied)
Time: July 18, 2019 1200 hours PDT (user specified)
CHEMICAL DATA:
Chemical Name: PROPANE
CAS Number: 74-98-6 Molecular Weight: 44.10 g/mol
AEGL-1 (60 min): 5500 ppm AEGL-2 (60 min): 17000 ppm AEGL-3 (60 min):
33000 ppm
IDLH: 2100 ppm LEL: 21000 ppm UEL: 95000 ppm
Ambient Boiling Point: -43.7° F
Vapor Pressure at Ambient Temperature: greater than 1 atm
Ambient Saturation Concentration: 1,000,000 ppm or 100.0%
ATMOSPHERIC DATA: (MANUAL INPUT OF DATA)
Wind: 9 miles/hour from w at 3 meters
Ground Roughness: urban or forest Cloud Cover: 5 tenths
Air Temperature: 85° F Stability Class: D
No Inversion Height Relative Humidity: 50%
SOURCE STRENGTH:
BLEVE of flammable liquid in horizontal cylindrical tank
Tank Diameter: 10.66 feet Tank Length: 51.5 feet
Tank Volume: 34397 gallons
Tank contains liquid
Internal Storage Temperature: 85° F
Chemical Mass in Tank: 68.1 tons Tank is 98% full
Percentage of Tank Mass in Fireball: 100%
Fireball Diameter: 251 yards Burn Duration: 14 seconds
THREAT ZONE:
Threat Modeled: Thermal radiation from fireball
Red : 549 yards --- (10.0 kW/(sq m) = potentially lethal within 60 sec)
Orange: 775 yards --- (5.0 kW/(sq m) = 2nd degree burns within 60 sec)
Yellow: 1206 yards --- (2.0 kW/(sq m) = pain within 60 sec)
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 8.
Meeting Date:12/14/2020
Subject:CONSIDER report: Local, Regional, State, and Federal Transportation
Issues: Legislation, Studies, Miscellaneous Updates, take ACTION as
Appropriate
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE COMMITTEE,
Department:Conservation & Development
Referral No.: 1
Referral Name: REVIEW legislative matters on transportation, water, and infrastructure.
Presenter: John Cunningham, DCD Contact: John Cunningham
(925)674-7883
Referral History:
This is a standing item on the Transportation, Water, and Infrastructure Committee referral list
and meeting agenda.
Referral Update:
In developing transportation related issues and proposals to bring forward for consideration by
TWIC, staff receives input from the Board of Supervisors (BOS), references the County's adopted
Legislative Platforms, coordinates with our legislative advocates, partner agencies and
organizations, and consults with the Committee itself.
This report includes four sections, 1: LOCAL, 2: REGIONAL, 3: STATE, and 4: FEDERAL .
1. LOCAL
Update on COVID-19 Transportation
Beginning in March/April of 2020 County Connection, Tri Delta Transit and Code 3 Transportation have been
providing transportation for Contra Costa Health Services and their clients/patients through the Emergency
Operations Center's COVID-19 response. County staff will provide an update to the Committee on these activities.
2. REGIONAL
No report in December. 3. STATE
Mr. Watts will attend the December Committee meeting to provide a verbal supplement to the
attached report.
4. FEDERAL
No report in December.
Recommendation(s)/Next Step(s):
CONSIDER report on Local, Regional, State, and Federal Transportation Related Legislative
Issues and take ACTION as appropriate.
Fiscal Impact (if any):
There is no fiscal impact.
Attachments
December TWIC State Transportation Leg Report
Smith, Watts & Company, LLC.
Consulting and Governmental Relations
December 8, 2020
TO: Transportation, Water, and Infrastructure Committee
FROM: Mark Watts
SUBJECT: Sacramento Report – December TWIC Meeting
This report provides a status update on key legislative or state budget activities.
LEGISLATURE
OVERVIEW
On December 7, both houses of the Legislature convened for the beginning of the new 2021-22 Session. As is
customary, this was also the first day for bill introductions.
Assembly - 96 Assembly Bills introduced
Senate - 68 Senate Bills introduced
ASSEMBLY
The California state Assembly met Monday at the Golden 1 Center in downtown Sacramento to swear in its
members for the two-year term.
The arena was transformed into a makeshift Assembly floor, with each member sitting at his or her own white table,
spread six feet apart.
Absent Assembly Members included Richard Bloom, Autumn Burke, Jim Frazier, Shirley Weber and Buffy Wicks.
SPEAKER
Assembly Member Rendon was confirmed for another term as speaker.
HOUSE RULES ADOPTED
HR 1 (Cooley) was adopted and it makes the following three modifications to the house’s committees:
Adds a new standing committee: Emergency Management
Changes the name of Elections and Redistricting to Elections
Changes the name of Veterans Affairs to Military and Veterans Affairs
SENATE
Smith, Watts & Company, LLC.
Consulting and Governmental Relations
In order to follow public health directives, the Senate Organizational Session was an abbreviated event that included
the swearing-in of new Senators, the election of Senate officers, and the opening of the Senate Desk for senators to
introduce new legislation. The Senate limited ceremony and did not allow guests on the Senate Floor to comply with
county health directives.
SENATORS PARTICIPATING REMOTELY
Bates
Newman
Glazer
Limon
Stern
Nielsen
Roth
Melendez
TRANSPORTATION, WATER &
INFRASTRUCTURE COMMITTEE 9.
Meeting Date:12/14/2020
Subject:REVIEW Communication, News, Miscellaneous Items of Interest to the
Committee and DIRECT staff as appropriate.
Submitted For: TRANSPORTATION, WATER & INFRASTRUCTURE
COMMITTEE,
Department:Conservation & Development
Referral No.: N/A
Referral Name: N/A
Presenter: John Cunningham, DCD Contact: John Cunningham
(925)674-7833
Referral History:
This is a standing item on the TWIC agenda.
Referral Update:
Communication Received:
Leland Frayseth - Resident
Email Copy, To Commissioners, Staff and Public re: Sacto River
Email Copy, To California Water Commission Re: Austerity and Demobilization Plan
Email Copy, To California Water Commission Re: Water Storage Investment Program
Recommendation(s)/Next Step(s):
RECEIVE information and DIRECT staff as appropriate.
Fiscal Impact (if any):
N/A
Attachments
LF Email - redacted
Excel Workbook, LF Email
LF Email ii - redacted
From: Leland Frayseth
Sent: Sunday, November 15, 2020 10:31 AM
Subject: CWC Public comment Leland Frayseth Conveyance Projects
Dear Commissioners, Staff and the Public,
This is my 37th letter to the California Water Commission (CWC). Please accept the following comment under agenda item 7 Public Testimony and agenda item
8 Conveyance Project Panel Discussion for the 18 Nov 2020 California Water Commission meeting. Please reference the meeting agenda at this
link https://cwc.ca.gov/Meetings/All-Meetings/2020/Meeting-of-the-California-Water-Commission-Nov-18-2020
I believe the material embedded in links under agenda item 8 are missing recent and ongoing experience gained from the Oroville Gated and Emergency Spillway
conveyance project and the Delta Conveyance Project. The Oroville Gated and Emergency Spillway conveyance failure was the result of neglected maintenance
as documented in the Forensic report and cost the public $1.2 billion dollars that you have been attempting to bill FEMA. The public is being told the Delta
Conveyance Project is being paid for by the State Water Contractors (Public Water Agencies) but the attached California WaterFix refund calcs 2020 spreadsheet
and FY2020-2021 Delta Conveyance Cash Flow spreadsheet show the project is heavily subsidized by DWR (California taxpayers like me) and water contractors
are getting refunds. I received both of those spreadsheets through public records requests.
I encourage you to watch the following videos I previously submitted as CWC meeting public comments.
https://youtu.be/Lpwba7CtuHA
https://youtu.be/4-BKBUXsjhE
The voters killed an $8.3 billion dollar water bond in 2018, a water resilience and/or conveyance bond will also be killed, business conditions have changed and
the public is hurting. DWR's outside counsel is in Court now trying to get Validation to sell revenue bonds for Delta Conveyance. The cash flow spreadsheet
below shows you are out of money in 6 weeks. The Court has scheduled a case management conference 11 Feb 2021. I believe you will lose the Court case the
public is not behind you. I wrote to you and the Governor 3 months ago for a demobilization plan for the Delta Conveyance Project and I think you ignored me.
Thank you for reading my public comment, watching the videos and studying the spreadsheets. I built a new boat during the Spring Covid19 Contra Costa
County lockdown, the paint is now cured and I plan to be chasing Sacramento and Mokelumne river salmon during your meeting and hopefully catch one for my
smoker.
Tight Lines,
Leland Frayseth
---------- Forwarded message ---------
From: Leland Frayseth
Date: Thu, Dec 3, 2020 at 11:48 AM
Subject: Leland Frayseth opposes CCWD 2021 water rate increase and CWC Early Funding rule making change
Dear California Water Commission (CWC) Commissioners, Contra Costa Water District (CCWC) Board Members, Staff, and the Public
This public comment expresses my opposition to the CCWD water rate increase to be presented at the public hearing on 6 Jan 2021 and my
opposition to the CWC Early Funding rule making change to be presented at the public hearing 20 Jan 2021.
Please watch Marguerite Patil of CCWD answer Commissioner Ball's questions at the beginning of this video regarding Los Vaqueros Early
Funding. It is a good video you should watch the whole thing but watch up to the point where she answers the reservoir expansion to
160,000 AF (acre-feet) cost me $109,000,000.
https://youtu.be/Lpwba7CtuHA
Now read in this table of the following public record recently released to me by the Department of Water Resources (DWR), Los Vaqueros
Reservoir Expansion cost me $700,000,000.
Written into the CWC-CCWD Early Funding Agreement and the associated invoice form is the requirement for a 50% local match. A recent
CCWD Financial report shows $34,000,000 in a Construction In Progress (CIP) account for Los Vaqueros Reservoir Expansion 275,000 AF
Expansion. That $34M is what CCWD has siphoned off my water bill for the past 20 years and now CCWD gets an equal match from the
Water Storage Investment Program (WSIP) bonds added to my state income tax bill.
I have another DWR bond story to share that involves my electric bill. See that $6 DWR bond charge to pay off the 2001 California Energy
Crisis? That is $6 a month for the past 20 years. How did it happen? Well the electric utilities, gas fired peaker power plant constructors and
Enron heavily lobbied then governor Pete Wilson and the Legislature to deregulate California's energy market. Enron gamed the system,
investor owned utilities went bankrupt, Calpine went bankrupt and our newest CWC member was intimately involved with helping Calpine
through that bankruptcy according to Google. Some Enron people in Texas went to jail, Gray Davis had to buy long term power contracts
through DWR to keep the lights on and I have been paying off those bonds $6 per month for 20 years, I think they are all paid off in 2021. I
do not want to pay off WSIP, Conveyance ,/ Water Resilience, State Water Project revenue bonds for Delta Conveyance and Butte County, City
of Oroville, local farmers legitimate Oroville litigation bonds for the next 20 years. I am watching you and will continue to do my civic
duty by providing public comment.
I oppose both the CCWD rate increase and the CWC Early Funding rule making change. Los Vaqueros Reservoir is an expensive failure that
has actually degraded my tap water quality and pulled fresh water from the Delta needed for salmon and the Delta's ecosystem. Thank you
for reading my comments.
Leland Frayseth