ITEM:

INFORMATION ITEMS/STAFF REPORT

 

25.

MONTHLY WATER SUPPLY STATUS REPORT

 

Meeting Date:
May 19, 2008

Budgeted: 

N/A

 

From:

Darby Fuerst,

Program/

N/A

 

General Manager

Line Item No.:

 

 

 

Prepared by:

Darby Fuerst

Cost Estimate:

N/A

 

General Counsel Approval:  N/A

Committee Recommendation:  N/A

CEQA Compliance:  N/A

 

Exhibit 25-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of May 1, 2008.  This system includes the surface water resources in the Carmel River Basin, the ground water resources in the Carmel Valley Alluvial Aquifer and the Coastal Subareas of the Seaside Groundwater Basin.  Exhibit 25-A focuses on four factors: rainfall, runoff, storage, and steelhead.  The report is limited to the water year that began October 1, 2007 and will end September 30, 2008 (WY 2008).  The rainfall and streamflow values are based on measurements recorded in the upper Carmel River Basin at San Clemente Dam.  This site was selected because of its location above storage facilities and the availability of long-term rainfall and runoff records.

           

Water Supply Status:  As shown, rainfall during WY 2008 to date has totaled 19.6 inches, which is 95% of the long-term average.  Runoff during WY 2008 to date has totaled 45,880 acre-feet (AF), which is 73% of average.  Usable storage, which includes surface and groundwater, was 30,850 AF or 95% of average at the end of April.  This storage equates to 82% of system capacity.  In addition, 412 adult steelhead have been counted in the fish ladder at San Clemente Dam and no juvenile steelhead have been rescued from drying reaches of the Carmel River mainstem by District staff in WY 2008 to date. 

 

Production Compliance:  Under State Water Resources Control Board (SWRCB) Order No. WR 95-10, California American Water (CAW) is allowed to produce 11,285 AF of water from the Carmel River in WY 2008.  In addition, under the Seaside Basin Decision, CAW is allowed to produce 3,504 AF of water from the Coastal Subareas and 345 AF from the Laguna Seca Subarea of the Seaside Groundwater Basin in WY 2008.  Altogether, CAW is allowed to produce 14,789 AF from Carmel River and Seaside Coastal sources for customers in its main system.  For WY 2008 to date, CAW has diverted 7,010 AF from the Carmel River and Seaside basins for customer use.  This water production is 296 AF or approximately 4.1% less than the target system production specified for WY 2008 to date.  A monthly breakdown of CAW’s production from the Carmel River and the Coastal Subareas of the Seaside Groundwater Basin for WY 2008 to date is included as Exhibit 25-B. CAW’s production from the Carmel River Basin is reduced for diversions that are made for injection into the Seaside Basin.  During WY 2008 to date, the District has injected 60 acre-feet of water into the Coastal Subareas of the Seaside Groundwater Basin.

 

EXHIBITS

25-A    Water Supply Status: May 1, 2008

25-B    Monthly CAW Diversions from Carmel River and Seaside Groundwater Basins:  Water Year 2008

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