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ITEM: |
INFORMATION
ITEMS/STAFF REPORT |
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23. |
MONTHLY WATER SUPPLY STATUS
REPORT |
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Meeting
Date: |
August 17, 2009 |
Budgeted: |
N/A |
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From: |
Darby
Fuerst, |
Program/ |
N/A |
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General
Manager |
Line Item
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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 23-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of August 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 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 18.1 inches, which is 85% of the long-term average. Runoff during WY 2009 to date has totaled 46,700 acre-feet (AF), which is 68% of average. Usable storage, which includes surface and groundwater, was 29,110 AF or 97% of average at the end of July. This storage equates to 77% of system capacity. In addition, 95 adult steelhead were counted in the fish ladder at San Clemente Dam and 9,072 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 July 2009, Cal-Am has diverted 10,610 AF from the
Carmel River and Seaside basins for customer use. This water production is 1,096 AF or
approximately 9.4% 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
23-A Water Supply Status: August 1, 2009
23-B Monthly Cal-Am Diversions from Carmel River and Seaside Groundwater Basins: Water Year 2009
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