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ITEM: |
INFORMATION
ITEMS/STAFF REPORT |
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21. |
MONTHLY WATER SUPPLY STATUS
REPORT |
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Meeting
Date: |
October 17, 2005 |
Budgeted: |
N/A |
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From: |
David A.
Berger, |
Program/ |
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General
Manager |
Line Item No.: |
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Prepared
by: |
Darby
Fuerst |
Cost Estimate: |
N/A |
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General Counsel Approval: N/A |
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Committee Recommendation: N/A |
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CEQA Compliance:
N/A |
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Exhibit 21-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of October 1, 2005. This system includes the surface water resources in the Carmel River Basin, the ground water resources in the Carmel Valley Alluvial Aquifer, and Seaside Coastal Ground Water Subareas. Exhibit 21-A focuses on four factors: rainfall, runoff, storage, and steelhead.
The report is limited to the water year that began October 1, 2004 and ended September 30, 2005 (WY 2005). 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 2005 totaled 30.0 inches, which is 140% of the long-term average. Runoff during WY 2005 totaled 111,360 acre-feet, which is 162% of average. Usable storage, which includes surface and ground water, was 27,800 acre-feet or 100% of average at the end of September. This storage equates to 74% of system capacity.
In addition, 328 adult steelhead were counted in the fish ladder at San Clemente Dam in WY 2005, which is 64% of the long-term average. In addition, 20,805 juvenile steelhead were rescued from drying reaches of the Carmel River mainstem by District staff. Additional steelhead rescues were made by Carmel River Steelhead Association (CRSA) volunteers in WY 2005.
Production Compliance: Under State Water Resources Control Board (SWRCB) Order No. WR 95-10, Cal-Am was allowed to produce no more than 11,285 acre-feet of water from the Carmel River in WY 2005. In addition, under current District water supply budgets, Cal-Am was allowed to produce a maximum of 4,000 acre-feet of water from the coastal subareas of the Seaside Ground Water Basin in WY 2005. Combined, Cal-Am was limited to 15,285 acre-feet of production in WY 2005.
For WY 2005, Cal-Am diverted 13,678 acre-feet from the Carmel River and Seaside basins for customer use. This water production is 1,607 acre-feet or approximately 10.5% less than the target system production specified for WY 2005. A monthly breakdown of Cal-Am’s production from the Carmel River and the coastal subareas of the Seaside Ground Water Basin for WY 2005 is included as Exhibit 21-B. Cal-Am’s production from the Carmel River Basin was reduced for diversions that were made for injection into the Seaside Basin. During WY 2005, the District injected 351 acre-feet of water into the coastal portion of the Seaside Groundwater Basin.
21-A Water Supply Status: October 1, 2005
21-B Monthly Cal-Am Diversions from Carmel River and Seaside Ground Water Basins: Water Year 2005
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