HomeMy WebLinkAboutMINUTES - 09301986 - 1.2 TO: BOARD OF SUPERVISORS
FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR
DATE: September 30, 1986
SUBJECT: Modernization Flood Control District Rain and Stream Gauge Data
Collection System and. Cooperative Hydrology Study with Contra Costa
Water District (7505-4956)
Specific Requests or Recommendations & Background & Justification
RECOMMENDED ACTION:
As the governing body of Contra Costa County Flood Control and Water Conservation District,
1) APPROVE and AUTHORIZE the -Chairman to execute a Joint Exercise of Power Agreement with
Contra Costa Water District for the collection of rain and stream gauge data in the Kellogg
Creek watershed for a period of three years.
2) AUTHORIZE the Chief Engineer to acquire $70,000 in electronic rain and stream gauge
monitoring equipment.
FINANCIAL IMPACT:
The Flood Control District within its fiscal year 1986/87 budget has allocated $60,000 for
electronic equipment to modernize the District's rain and stream guage data collection
system. The initial installation will consist of ten stations and a computer operated
control station at an estimated cost of $70,000. It is anticipated the cost of this equipment
will be recouped through labor savings over the next four years. The Joint Exercise of
Powers Agreement with the Contra Costa Water District provides for their paying $46,000 to
the Flood Control District for the purchase of equipment and staff labor involved in collecting
the desired data. Four of the new electronic stations will be used in the Kellogg Creek
data collection program.
REASONS FOR RECOMMENDATION/BACKGROUND:
Since the beginning of .the Flood Control District in the early 1950's the District has been
collecting rain and stream guage data in Contra Costa County. This data is the basis for
the design of all drainage facilities within the County. It is used by private engineers,
the cities and tle County. Presently the system utilizes manual recorders that store the
data on paper disks at each site. These disks are then reduced manually and the data is
entered into a computer which provides a summary record for each rain or stream guage
station. The proposed electronic monitoring equipment and computer control station will
automate this function thereby saving the District approximately three persons months of staff
labor each year.
Continued on attachment: X yes Signature: A
Recommendation of County Administrator Recommendation of Board Committee
Approve Other:
Signature(s) :
Action of Board on: SEP 3 4 1986 Approved as Recommended• _ kl'*� Other
Vote of Supervisors I HEREBY CERTIFY THAT THIS IS A TRUE
AND CORRECT COPY OF AN ACTION TAKEN
!/Unanimous (Absent ) AND ENTERED ON THE MINUTES OF THE
Ayes: Noes: BOARD OF SUPERVISORS ON DATE SHOWN.
Absent: Abstain:
Attested SEP 3 0 1986
Orig. Div. : P.W: . Flood Control Phil Batchelor
cc: County Administrator's Office Clerk of the Board of
County Auditor/Controller Supervisors and County
County Counsel Administrator
Contra Costa Water District (via PWD)
Public Works Department:
Accounting —� .
Flood Control Engineering By � DEPUTY
The new equipment transmits the data by. radio wave to the control computer which will be
located at the Glacier Drive office. This ..will provide instant data on the amount of
rainfall at strategic locations in the County during emergency storm operations. Several
stream recorders will also report instantly to the control station, e.g. , Wildcat Creek and
Marsh Creek Dam. Additional savings of staff labor will be realized in this area by elimination
of the need to send observers to these locations during storms.
The Contra Costa Water District desires stream flow and precipitation data for the design
and construction of the Los Vaqueros (Kellogg Creek) reservoir project. The Flood Control
District has the capability of collecting and providing this data for them. In addition,
the District will benefit by having the data for use in our Kellogg Creek detention basin
study, and in our data base for the Countywide hydrology system.
CONSEQUENCES OF NEGATIVE ACTION:
Failure to purchase the new equipment will require that we continue to manually reduce the
rain and stream guage data. Our failure to execute the agreement with the Contra Costa
Water District would require that they seek another public agency or outside engineering
firm to gather, the necessary data at a considerable increase in cost to the Water District.