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HomeMy WebLinkAboutMINUTES - 01141992 - 2.3 TO: BOARD OF SUPERVISORS AS THE GOVERNING BODY OF THE CONTRA COSTA COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR DATE: January 14, 1992 SUBJECT: ACCEPT STATUS REPORT REGARDING THE STORMWATER POLLUTION CONTROL PROGRAM AND REFER TO BOARD COMMITTEES FOR BOARD RECOMMENDATIONS SPECIFIC REQUEST(S)OR RECOMMENDATION(S)&BACKGROUND AND JUSTIFICATION I. Recommended Action: ACCEPT status report of the Stormwater Pollution Control Program and DIRECT the Public Works Director to meet with the Board of Supervisors' Finance, Internal Operations, Environmen- tal Affairs and Water Committees to review the Program's goals and objectives and determine the proper financing mechanism for Contra Costa County's participation. II. Financiallmpact: Obtaining a National Pollutant Discharge Elimination System (NPDES) Permit is a three step process. Part I of the application will cost Contra Costa County $110,000. This was approved by the Board of Supervisors on May 7, 1991. These funds are for fiscal year 1991/92. Part II estimated costs for Contra Costa County total approximately $225,000. This will be for fiscal year 1992/93. Once the NPDES Permit has been obtained, the financial burden to Contra Costa County may range between $500,000 to $1 million annually. No permanent revenue source presently exists for this Program except general fund financing. III. Reasons for Recommendations and Background: The United States Environmental Protection Agency issued the National Pollutant Discharge Elimination System (NPDES) regulations for stormwater discharges on November 16, 1990. These regulations require Contra Costa County, its incorporated cities and the Contra Costa County Flood Control and Water Conservation District to obtain a NPDES Permit for stormwater Continued on Attachment: X SIGNATURE: , _ RECOMMENDATION OF COUNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE APPROVE _ OTHER SIGNATURE(S): ACTION OF BOARD ON / lcl-7 ZAPPROVED AS RECOMMENDED OTHER VOTE OF SUPERVISORS UNANIMOUS (ABSENT ) AYES: NOES: ABSENT: ABSTAIN: DPF:fp I hereby certify that this is a true and correct copy of c:BO14.t1 an action taken and entered on the minutes of the Board of Supervisors on the date shown. Orig. Div: Public Works (FC) ATTESTED: y Z__ PHIL JFATCHELOR,CI of the Board CC: County Administrator of Supervisors and County Administrator Finance Committee Internal Operations Committee By �Z� ,Deputy Director, Community Development Environmental Affairs Committee Water Committee THE STORMWATER POLLUTION CONTROL PROGRAM BOARD COMMITTEES FOR BOARD RECOMMENDATIONS January 14, 1992 Page Two discharges. The Permit seeks to significantly reduce or eliminate all pollutants from entering the water of the San Francisco Bay - Delta Region. An organization consisting of Contra Costa County, its 18 incorporated cities and the Contra Costa County Flood Control and Water Conservation District has been formed in order to obtain an area-wide NPDES Permit. All 20 entities are collectively applying for Part I of the NPDES Permit. Approximately$200,000 has been funded for these activities. The Contra Costa County Flood Control and Water Conservation District is underwriting the staff necessary to manage and coordinate these functions. The consulting engineering firm of Woodward-Clyde, Inc. has been hired to provide the technical expertise for the Part I application. The Board of Supervisors approved their contract on July 23, 1991. The group costs represent only a portion of the financial commitments for the 20 entities. Each jurisdiction must also fund separate activities needed to comply with the Part I requirements. Most of the funding has been derived from the jurisdictions' general revenues. The estimated 1992/93 fiscal year budget for Part II group costs is approximately $1,120,000. Contra Costa County's anticipated share totals $225,000. Financing this and future obligations once the NPDES Permit has been granted needs to be reviewed by the Board of Supervisors' appropriate Board committees including the Finance, Water and Environmental Affairs Committees. The Public Works Director will provide various financing options for consideration. Once the Boards' committee review has been concluded, then a final recommendation will be brought before the Board of Supervisors for consideration. The cost to finance the County's Stormwater Pollution Control Management activities once the NPDES Permit is granted range from $500,000 to $1 million. Immediate steps need to be undertaken in order to meet the financial challenge the Stormwater Pollution Control Program requires. As of this date, funding for the 1992/93 cost of $225,000 has not been identified. IV. Consequences of Negative Action: If Contra Costa County does not attain a NPDES Permit it will be in non-compliance and subject to regulatory fines totalling approximately $25,000 per day. CONTRA COSTA CITIES i COUNTY i DISTRICT STORMWATER POLLUTION CONTROL PROGRAM CONTRA COSTA COUNTY BOARD OF SUPERVISORS January 14, 1992 EXECUTIVE SUMMARY Contra Costa County, its eighteen incorporated cities and the Contra Costa County Flood and Water Conservation District joined together in February, 1991 in response to the United States Environmental Protection Agency promulgation of the National Pollutant Discharge Elimination System(NPDES)Permit Application Regulation for Stormwater Discharges and the San Francisco Regional Water Quality Control Board's Amended San Francisco Bay Basin Plan for Urban Runoff Management Programs. The Federal and State's regulations mandated each jurisdiction within Contra Costa County that owns, operates or maintains a storm sewer system to have a Stormwater Management Prevention Program. The intent of these regulations was to radically reduce or eliminate all pollutants from stormwater. Implementation of the NPDES Program would enhance the water quality of the Bay/Delta Estuary. The City ♦ County ♦ District organization has progressed rapidly in order to comply with the NPDES regulations. All twenty entities are presently applying for an area-wide NPDES Permit which is a three step process. Part I constitutes the reconnaissance level activity; Part II is the development of the Stormwater Management.Prevention Plan; and, Part III is the actual granting of the NPDES Permit for a five year period. The State Water Resources Control Board, through its nine Regional Water Quality Control Boards, is responsible for implementing the NPDES Program in California. The San Francisco Regional Board has been extremely flexible with our efforts. We do not anticipate this to diminish in the foreseeable future. Part I of the application due by May 18, 1992 is well underway. Planning for Part II is presently being discussed and coordinated which is due by May 17, 1993. The NPDES Permit should be granted in the fall of 1993. An area-wide NPDES Permit is the preferred alternative to twenty individual NPDES Permits. The area-wide Permit is easier to monitor for the San Francisco Regional Board and implement for the twenty entities. The primary objective of the collective effort is to reduce costs and redundancies. So far, this has been achieved. The greatest challenge facing the City ♦ County ♦ District effort is financing Part II and the actual implementation of the NPDES Permit. These efforts are on-going and will hopefully be resolved in the — . foreseeable future. The attitude of the City ♦ County ♦ District organization is to cooperatively work with the regulators making them aware of Contra Costa County's unique characteristics. We want a Program that meets the Federal and State regulations, but not create an undue financial hardship for each jurisdiction. So far, the efforts have been successful. DPF:sj ampdessum.tl �_ fl C> ��"` Q T• J �ww �ww mss 40W � a LH 1 c/a► C/? tJ3 � o 0 0 c�or W g AM CL � J d J J J ca 'M' J iii a1— �ti+sa� G o 0 V o CD Nil = u W U U ii■ i LLI G_ "�► O> CC J t/7 d t' r f LU IO co W cr> fioq� ,rs ,cA mss LU O Cl> c/� cn cry ♦ N ' Q 4 4 4 cnJ �,' Q O W Q tu f•- ui to � V � Q J CPQ V p • u r Z OW Gy N N CC >= OQ W O <> C%t- M VN -,-,i cv r— • Q u, 40. ts"� {� Co .. .. .. ..�' ac U CIOCIOcn C.0�— F— {.� c� o c-coc cn cn cn cn o 0 0 0 U Uuj U U co Q C> ul Z � GC V ta► Z Z W U. VE � Q J tl> PROGRAM"QUESTIONS AND ANSWERS 1. What is the "NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM" (NPDES) Permit Program. The Federal Water Pollution Control Act (referred to as the "Clean Water Act") prohibits the discharge of any pollutant to "navigable waters" from a point source unless the discharge is authorized by an NPDES Permit. The Clean Water Act was amended in 1987 and requires the Environmental Protection Agency (EPA) to establish regulations for stormwater discharges associated with municipal, industrial and construction activities. The primary intent of the NPDES Permit Program is to radically reduce or eliminate all pollutants from stormwater. Any jurisdiction that owns, operates or maintains a storm sewer system must have an NPDES Permit. 2. Is the NPDES Permit Program voluntary or mandatory? Do cities with a population under 100,000 have to participate? ITS MANDATORY! The United States Environmental Protection Agency issued the NPDES Application Regulations for Stormwater Discharges (40 CFR Parts 122, 123 and 124) on November 16, 1990. Contra Costa County and the City of Concord were specially identified in the Regulations as requiring a Stormwater Discharge Permit, but the San Francisco Regional Water Quality Control Board has directed that all cities regardless of size and the Contra Costa County Flood Control and Water Conservation District shall also be required to obtain a Permit. The Water Quality Control Plan for the San Francisco Bay Basin fulfills requirements of the Porter-Cologne Act that calls for water quality control plans throughout California. Therefore, Federal and State laws mandate that all jurisdictions within Contra Costa County shall have an urban runoff management program. Steve Ritchie,Executive Officer of the San Francisco Bay Regional Water Quality Control Board on April 12, 1991 directed that ..."Contra Costa County, the Contra Costa County Flood Control District, and all cities in Contra Costa County... develop and implement a Stormwater Management Program." 3. How is a municipal NPDES Permit granted? The NPDES Permit for municipalities consists of a three stage process. Part I of the application due on May 18, 1992 constitutes reconnaissance level activities. This phase of the process seeks to determine the resources available to implement a stormwater management program as well as specifically identifying through water monitoring tests potential problems associated with stormwater pollutants. Part I.I of the application process is the development of a Stormwater Management Prevention Program. The plan seeks to distinguish the duties and responsibilities of all jurisdictions to eventually eliminate or radically reduce pollutants in stormwater. The third and final step of the application procedure is the actual granting of the NPDES Permit. This Permit would be for a five year period which would seek to implement all segments of the Stormwater Management Prevention Program. Demonstratable results would.have to be certified. As a result of the April 12, 1991 letter from Mr. Ritchie, referred to previously, Contra Costa County, its eighteen incorporated cities and the Contra Costa County Flood Control and Water Conservation District is applying for an area-wide NPDES Permit. Once the Permit is granted, all twenty entities would be considered co-permittees. 4. Can the County or any city drop out of the area-wide NPDES Program? Technically yes. Contra Costa County or any city has the ability to apply for a NPDES Permit individually. If one were to consider this option, then you would need to determine if it is the most sensible and cost effective approach for the jurisdiction. Essentially, the efforts that are presently on-going for the area-wide NPDES Permit would have to be duplicated individually. Since most cities do not have the resources to administer this Program, it would seem most likely that a consultant would be hired. Why would the County or a city want to pay 100 percent of a consultant's fee when they are only paying a portion of the consultant's expenses now. The Regional Water Quality Control Board has been extremely flexible with the on-going Program and is very sensitive to the issue of cost. The Regional Board has strongly suggested the area-wide effort as the preferred alternative. It's easier for them to monitor and for us to administer. Thus far, it has proven to be the most cost effective choice. 5. Is the perception true that the City ♦ County ♦ District Stormwater Pollution Control Program is really a "County led" effort? NOH Contra Costa County is one of twenty participants. It has a voice equal to the smallest or largest city in the organization. The County pays its proportional share of group costs. The Flood Control District has agreed to underwrite most of the staffing costs for Parts I and II. The Stormwater Pollution Control Manager is essentially an employee of all twenty jurisdictions. The policy body known as the Technical Coordination Committee composed of representatives from each of the jurisdictions provides direction to staff. Santa Clara and Alameda Counties both have area-wide NPDES Permits. The experience gained from these entities indicate cities will be primarily responsible for implementing the NPDES Permit requirements. Future expense's may break down to one-third group costs and two-thirds individual County/City costs once the Permit is granted. 2 6. Costs for Parts I and II are done on a population basis without any regard to a city's primary land use characteristics (e.g., industrial vs. residential). Can the cost allocation formula be changed? Yes. When the City + County + District organization formed in February, 1991 cost allocation was a major topic. After considering several different methodologies, the decision was made to use population as the easiest, most administratively responsible method for sharing costs. If the present method is unacceptable, then the Technical Coordination Committee could certainly consider modifying or revamping the entire formula, but there is one word of caution. Many of the City and County representatives indicate that a great deal of time, energy and effort could be spent in trying to establish a "more equitable" formula, but that it may not be worth the effort. The difference may be negligible. What one jurisdiction gains, another may lose and vice versa. A formula should be as fair as possible and be implemented as quickly and efficiently as possible. Therefore, the population cost allocation method has been the preferred device. 7. Will Contra Costa's. NPDES Permit be the same as Santa Clara and Alameda Counties? Will the San Francisco Regional Water Quality Control Board treat us differently taking into consideration our unique characteristics? There is a perception that the Santa Clara and Alameda Counties NPDES Programs constitute the "Cadillac" level of effort, but it must be understood -each jurisdiction had specific water quality problems that needed immediate large scale.attention. This is not the case with Contra Costa County. The.San -Francisco Regional Water Quality Control Board has_been extremely flexible with our Program. If you were to follow the strict interpretation of EPA's regulations for Part I, then the water monitoring costs could have escalated ten to twenty times the actual expense. The Regional Board has permitted us to use the data developed from Santa Clara and Alameda Counties for wet and dry weather monitoring and delay some of these tests to Part IL The Regional Board does not want to be in an adversarial position with Contra Costa County, its eighteen incorporated cities and the County Flood Control District. Therefore, they have gone to great lengths.to work cooperatively with the Program participants and staff. Both the regulators and participants are striving for a Program that meets the unique needs of Contra Costa County. There is no question, that a mind set exists with the Regional Board due to their experiences with Santa Clara and Alameda Counties regarding a successful NPDES, Program, but their actions have indicated a complete willingness to work cooperatively with us and to be as flexible as possible while meeting the goals and objectives of the NPDES Program. 3 8. Where will the revenue come from to finance Part II of the application and the implementation of the NPDES Program? The primary focus for the Technical Coordination Committee is the financing of the NPDES application and permit. Many suggestions have been made and the Finance Sub-committee is exploring various options. One consideration is to have the County Flood Control District collect a fee countywide with nineteen separate zones. Each zone would represent a city's specific needs for the Stormwater Pollution Control Program. The. city would determine what their budget needs were for the following year and have the Flood Control District collect the fee. Each city may want to consider including in their Stormwater Management Prevention Program expenses other than the NPDES Program. This could include capital improvements and operation and maintenance expenses. Staff is asldng County Counsel to render an opinion to determine its feasibility. The County and cities could determine individually how they wish to finance this Program. In the next several months, this determination will be made so that revenue could be generated for fiscal years 1992 and 1993. The Technical Coordination Committee has indicated their preference to develop an individual revenue source for the NPDES Program. The Regional Water Quality Control Board representatives have also indicated that it may be unacceptable to them to finance the NPDES Program through general revenues. The reason is the volatility of general revenues and their desire to have a dedicated funding source. This dedicated funding source could free up revenue for other general service needs. 9. Are resources available to assist the County or any city to explain the Stormwater Pollution Control Program to their own elected officials and/or staff? The need to explain the NPDES Program to elected officials and senior city staff is critical to the Program's overall success. Resources are available from representatives of the Technical Coordination Committee, Woodward-Clyde Consultants, the Stormwater Pollution Control Manager or representatives from the San Francisco Regional Water Quality Control Board. All of the -- aforementioned representatives are more than happy to participate in any effort the County or cities need to educate, inform or support the NPDES Program. OPF:sj a:NPOESques.tt 01/06/91 4 STATc Of CALIFORNIA PETE WILSON, Governor CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD Phone: (415) 464-1255 SAN FRANCISCO BAY REGION FAX: ,(415)464-1380 2101 WEBSTER STREET, SUITE 500 OAKLAND, CA 94612 �' MANt>(-3L A F`. 1 +`En April 12, 1991 File No. 1538.01(JDW) To: Contra Costa County, Contra Costa County Flood Control District, and Cities in Contra Costa County (List Attached) Subject: NPDES Permit for Storm Water Discharges The Regional Board considers storm water runoff a significant source of pollutants to waters in the San Francisco Bay Region. Storm water runoff discharges contribute to violations of water quality objectives in waters throughout the urban areas of the Region. This letter is to inform you that the Regional Board is requiring Contra Costa County, the Contra Costa County Flood Control District, and all cities in Contra Costa County to develop and implement a storm water management program. The conceptual framework of the Regional Board's storm water runoff control program was established with the 1986 amendments to the Basin Plan. The initial focus of the Regional Board's program has been on Santa Clara and Alameda counties. The Regional Board issued a National Pollutant Discharge Elimination System (NPDES) permit in June 1990 requiring the implementation of a storm water management plan developed by the local agencies in Santa Cara County. The local agencies in Alameda County are required to submit a NPDES permit application by June 1991 which includes a storm water management program plan. Proposed amendments to the Basin Plan that the Regional Board will consider soon will require Contra Costa County, the Contra Costa County Flood Control District, and all cities in Contra Costa County to develop a storm water management program. The US Environmental Protection Agency recently issued NPDES Application Regulations for Storm Water Discharges (40 CFR Parts 122, 123, and 124) on November 16, 1990. These regulations require cities and counties with a population of 100,000 and greater to apply for a NPDES permit for their storm water discharges. Contra Costa County and the City of Concord were specifically named in the regulations as requiring a storm water discharge permit. These regulations also allow the Regional Board to require NPDES permits for storm water systems that interconnect with or are within the same watershed as a system designated in the regulation. In addition, the regulations state that a storm water discharge that contributes to a violation of water quality standards or is a significant contributor of pollutants to receiving waters may be required to obtain a permit. Consequently, the Regional Board's storm water runoff control- program is consistent with the NPDES regulations. Contra Costa County, Contra Costa County Flood Control District, and Cities in Contra Costa County (List Attached) April 12, 1991 Page 2 The NPDES regulations require a two-part application. Therefore, Contra Costa County, the Contra Costa County Flood Control District, and all cities in Contra Costa County are required to submit a joint Part 1 Application by May 18, 1992. The Part 1 Application shall be equivalent to the requirements in the storm water regulation at 40 CFR Part 122.26(d). The equivalent of Part 2 of the application shall be submitted by May 17, 1993. One coordinated storm water management program in Contra Costa County adrninistered by one NPDES pen-nit is essential from a technical and water quality perspective and represents a sensible and cost-effective approach from a public policy perspective. The local agencies in Santa Clara and Alameda counties have worked pro-actively with the Regional Board. This approach has resulted in the effective development of their storm water management Programs allowing for maximum flexibility and consideration of local concerns and resource limitations. We encourage a similar pro-active approach on your part We will work with you to ensure that you benefit from the successes and avoid the failures of the Santa Clara and Alameda programs. Your cooperation on this matter will result in the most efficient use of all resources involved. The portion of Contra Costa County east of approximately Morgan Territory Road and Somerville Road including Antioch and Brentwood are in the Central Valley Regional Water Quality Control Board jurisdiction. You are encouraged to submit the same permit application to both the Central Valley Regional Board and to this Board so that the storm water program will be consistent county-wide. We will coordinate our permitting process with the Central Valley Regional Board to minimize any duplication of effort between the portions of Contra Costa County in the separate regions. If you have any questions regarding this letter, please call John Wolfenden at (415) 464-0689 or Thomas Mumley at (415) 464-0962. Sincerely, Steven R. Ritchie Executive Officer Contra Costa County, Contra Costa County Flood Control District, and Cities in Contra Costa County (List Attached) April 12, 1991 Page 3 cc: Harry`Seraydarian, Water Management Division Director, US EPA Region 9 James Baetge, Executive Director, State Water Resources Control Board William H. Crooks, Executive Officer, Central Valley Regional Board attachment Mr. Phil Batchelor Ms. Marilyn Leuck County Administrator City Manager Contra Costa County City of Hercules 651 Pine Street, 11th Floor 555 Railroad Avenue Martinez, CA 94553 Hercules, CA 94547 Mr. J. Michael Walford Mr. Robert Adams Public Works Director City Manager Contra Costa County City of Lafayette 255 Glacier Drive 251 Lafayette, CA 94549 Martinez, CA 94553-4897 Mr. Jim Jakel Mr. Lee Walton City Manager City Manager City of Martinez City of Antioch 525 Henrietta Street P. O. Box 130 - Martinez, CA 94553 Antioch, CA 94509 Mr: Ross Hubard Mr. Don Russell City Manager City Manager . City of Moraga City of Brentwood P. O. Box 188 708 Third Street Moraga, CA 94556 Brentwood, CA 94513 Mr. Tom Sinclair City Manager City Manager City of Clayton City of Orinda P. O. Box 280 26 Orinda Way Clayton, CA 94517 Orinda, CA 94563 Ms. Rita Hardin Mr. Don Bradley City Manager City Manager City of Concord City of Pinole 1950 Parkside Drive 2131 Pear Street Concord, CA 94519 Pinole, CA 94564 Mr. George Sipel Mr. Tony Donato Town Manager City Manager Town of Danville City of Pittsburg 510 La Gonda Way 2020 Railroad Avenue Danville, CA 94526 Pittsburg, CA 94565 Mr. Gary Pokorny Mr. Joseph Tanner City Manager City Manager City of El Cerrito City of Pleasant Hill 10890 San Pablo Ave. 3300 N. Main Street El Cerrito, CA 94530 Pleasant Hill, CA 94523 Mr. Lawrence Moore City Manager City of Richmond Civic Center Plaza Richmond, CA 94804 Mr. Rory Robinson City of San Pablo One Alvarado Square San Pablo, CA 94506 Mr. Herb Moniz City of San Ramon 2222 Camino Ramon San Ramon, CA 94583 Mr. Don Blubaugh City of Walnut Creek 1666 No. Main Street Walnut Creek, CA 94596 STORMWATER POLLUTION CONTROL PROGRAM PROPOSED 1992-93 FISCAL YEAR ADMINISTRATIVE: Program Manager $ 55,014 Secretary (half-time) $ 14,424 Benefits (29%) $ 24,320 Administrative Support (71%) $ 59,724 (telephones, accounting services, furniture, lighting, etc.) Travel & Training $ 3,000 TOTAL $141,876 Contra Costa County Flood Control and Water Conservation District Financial Contribution* ($120,000) TOTAL ADMINISTRATIVE COSTS $221000 TECHNICAL: NPDES PART II APPLICATION $647,000 (CONSULTANT) A. Demonstrate appropriate legal authorities for enforcement activities B. Characterize discharges 0 from municipal system (combine wet and dry weather sampling) C. Propose management program to control the discharge of pollutants to "the maximum extent practicable" D. Provide a financial analysis estimating the cost for implementing the management program E. Identify the roles and responsibilities of co- applicants GENERAL SUPPORT SERVICES (e.g., studies - $ 40,000 BASMAA AHI, BAY BASIN, etc.) FEES (NPDES Permit, Bay Protection, etc.) $100,000 TOTAL TECHNICAL COSTS 787,000 PUBLIC EDUCATION AND OUTREACH: Consultant(s) Program Development $ 35,000 Educational Materials & Supplies $ 15,000 Industrial Outreach Program $ 25,000 TOTAL PUBLIC EDUCATION AND OUTREACH COSTS $ 75,000 GENERAL SERVICES AND SUPPLIES: Document Reproductions $ 15,000 Office Supplies $ 5,000 Postage $ 5,000 TOTAL GENERAL SERVICES AND SUPPLIES $ 25,000 CONTINGENCY (10%) $91,000 $ 91,000 SUB-TOTAL $1,000,000 FLOOD CONTROL DISTRICT CONTRIBUTION $ 120,000 TOTAL PROJECTED BUDGET $1,120,000 *Contra Costa County Flood Control and Water Conservation District acknowledges it Will be a co-applicant in the area-wide NPDES Permit. Therefore, it agreed to financially assist the initiation and development of the Stormwater Pollution Control Program through Parts I and II of the application process by financing-staff costs instead of a pro-rata share based on population. A determination will need to be made at the end of Part II indicating how the Flood Control District will participate financially with the ongoing program. DPF-si a:92-93budget 01/03/92 STORMWATER POLLUTION CONTROL PROGRAM PROPOSED 1992-93 FISCAL YEAR BUDGET GROUP COSTS ENTIZ�' PRORATA SHARD PR.OPCISE,D SPL4]EZF OF GR f3UP COSTS OF F�STIMATED GROUP CASTS Antioch 7.72% $ 77,200 Brentwood 0.94% $ 9,400 Clayton 0.92% $ 9,200 Concord 13.84% $ 138,400 County(unincorporated) 18.84% $ 188,400 Contra Costa County 0.00%(2) $ 120,000 Flood Control District Danville 3.90% $ 39,000 El Cerrito 2.84% $ -28,400 Hercules 2.08% $ 20,800 Lafayette 2.94% $ 29,400 Martinez 3.96% $ 39,600 Moraga 1.98% $ 19,800 Orinda 2.06% $ 20,600 Pinole 2.18% $ 21,800 Pittsburg 5.92% $ 59,200 Pleasant Hill 3.92% $ 39,200 Richmond 10.90% $ 1097000 San Pablo 3.14% $ 312400 San Ramon 4.38% $ 43,800 Walnut Creek 7.54% $ 75,400 TOTAL 100.00% $1,120,000 (1) The allocation of Group Costs to the various entities is based on the 1990 census for each entity. (2) Prorata share not based on population, but as a direct financial contribution. 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