ITEM:

INFORMATION ITEMS/STAFF REPORT

 

23.

MONTHLY WATER SUPPLY STATUS REPORT

 

Meeting Date:

March 26, 2009

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 23-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of March 1, 2009. This system includes the surface water resources in the Carmel River Basin, the ground water resources in the Carmel Valley Alluvial Aquifer and the Seaside Groundwater Basin. Exhibit 23-A focuses on four factors: rainfall, runoff, storage, and steelhead. The report is limited to the water year that began October 1, 2008 and will end September 30, 2009 (WY 2009). 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 2009 to date has totaled 13.4 inches, which is 85% of the long-term average. Runoff during WY 2009 to date has totaled 16,140 acre-feet (AF), which is 44% of average. Usable storage, which includes surface and groundwater, was 30,340 AF or 97% of average at the end of February. This storage equates to 81% of system capacity. In addition, 37 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 2009 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 2009, unless modified by the SWRCB. 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 2009, unless modified by the Seaside Basin Watermaster. Altogether, CAW is currently allowed to produce 14,789 AF from Carmel River and Seaside Coastal sources for customers in its main Monterey system and 345 AF from the Laguna Seca Subarea for customers in its Laguna Seca subsystems, i.e., Ryan Ranch, Hidden Hills, and Bishop Systems. For WY 2009 through February 2009, CAW has diverted 4,821 AF from the Carmel River and Seaside basins for customer use. This water production is 470 AF or approximately 8.9% less than the target specified for CAWs production from the MPWRS for WY 2009 to date. A monthly breakdown of CAWs production from the Carmel River and the Seaside Groundwater Basin Subareas for WY 2009 to date is included as Exhibit 23-B. CAWs production from the Carmel River Basin is reduced for diversions that are made for injection into the Seaside Basin. During WY 2009 to date, the District has injected 63 AF of water from the Carmel River Basin into the Seaside Groundwater Basin.

EXHIBITS

23-A Water Supply Status: March 1, 2009

23-B Monthly CAW Diversions from Carmel River and Seaside Groundwater Basins: Water Year 2009

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