ITEM:

INFORMATION ITEMS/STAFF REPORT

 

30.

MONTHLY WATER SUPPLY STATUS REPORT

 

Meeting Date:
September 21, 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 Review:  N/A

Committee Recommendation:  N/A

CEQA Compliance:  N/A

 

Exhibit 30-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of September 1, 2009.  This system includes the surface water resources in the Carmel River Basin, the groundwater resources in the Carmel Valley Alluvial Aquifer and the Seaside Groundwater Basin.  Exhibit 30-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 18.1 inches, which is 85% of the long-term average.  Runoff during WY 2009 to date has totaled 47,160 acre-feet (AF), which is 69% of average.  Usable storage, which includes surface and groundwater, was 28,110 AF or 97% of average at the end of August.  This storage equates to 75% of system capacity.  In addition, 95 adult steelhead were counted in the fish ladder at San Clemente Dam and 13,313 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 (Cal-Am) is allowed to produce 11,285 AF of water from the Carmel River in WY 2009.  In addition, under the Seaside Basin Decision, Cal-Am is allowed to produce 3,191 AF of water from the Coastal Subareas and 271 AF from the Laguna Seca Subarea of the Seaside Groundwater Basin in WY 2009, as modified by the Seaside Basin Watermaster in May 2009.  Altogether, Cal-Am is currently allowed to produce 14,476 AF from Carmel River and Seaside Coastal sources for customers in its main Monterey system and 271 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 August 2009, Cal-Am has diverted 11,977 AF from the Carmel River and Seaside basins for customer use.  This water production is 1,320 AF or approximately 9.9% less than the target specified for Cal-Am’s production from the MPWRS for WY 2009 to date.   A monthly breakdown of Cal-Am’s production from the Carmel River and the Seaside Groundwater Basin Subareas for WY 2009 to date is included as Exhibit 30-B.  Cal-Am’s production from the Carmel River Basin is reduced for diversions that are made for injection into the Seaside Basin.  During WY 2009, the District injected 182 AF from the Carmel River into the Seaside Groundwater Basin, based on the District’s meter readings at the Phase 1 ASR site, and has recovered 122 AF for customer use.

 

EXHIBITS

30-A    Water Supply Status: September 1, 2009

30-B    Monthly Cal-Am Diversions from Carmel River and Seaside Groundwater Basins:  Water Year 2009

 

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