ITEM:

INFORMATIONAL ITEMS/STAFF REPORT

 

31.

MONTHLY WATER SUPPLY STATUS REPORT

 

Meeting Date:

June 22, 2006

Budgeted:

N/A

 

From:

David A. Berger,

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 31-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of June 1, 2006.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 31-A focuses on four factors: rainfall, runoff, storage, and steelhead.

†††††††††††††††††††††††††††††††††††

The report is limited to the water year that began October 1, 2005 and will end on September 30, 2006 (WY 2006).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 2006 has totaled 28.0 inches, which is 133% of the long-term average.Runoff during WY 2006 has totaled 101,470 acre-feet, which is 152% of average.Usable storage, which includes surface and ground water, was 31,700 acre-feet or 100% of average at the end of May.This storage equates to 85% of system capacity.

 

In addition, 345 adult steelhead have been counted in the fish ladder at San Clemente Dam in WY 2006 to date which is 69% of average for the 1994-2005 period.Also, no juvenile steelhead have been rescued from drying reaches of the Carmel River mainstem by District staff in Water Year 2006 to date.

 

Production Compliance:Under State Water Resources Control Board (SWRCB) Order No. WR 95-10, Cal-Am is allowed to produce no more than 11,285 acre-feet of water from the Carmel River in WY 2006.In addition, under current District water supply budgets, Cal-Am is projected to produce a maximum of 2,252 acre-feet of water from the coastal subareas of the Seaside Groundwater Basin during the first three quarters of WY 2006.

 

For WY 2006 to date, Cal-Am has diverted 7,950 acre-feet from the Carmel River and Seaside basins for customer use.This water production is 862 acre-feet or approximately 9.8% less than the target system production specified for WY 2006.A monthly breakdown of Cal-Amís production from the Carmel River and the coastal subareas of the Seaside Ground Water Basin for WY 2006 is included as Exhibit 31-B.Cal-Amís production from the Carmel River Basin is reduced for diversions that were made for injection into the Seaside Basin.During WY 2006, the District has injected 411 acre-feet of water into the Seaside Groundwater Basin.

 

EXHIBITS

31-A†† Water Supply Status: June 1, 2006

31-B†† Monthly Cal-Am Diversions from Carmel River and Seaside Ground Water Basins:

†††††††† Water Year 2006 to date†††††††††††††††††††††††† U:\staff\word\boardpacket\2006\2006boardpackets\20060622\InfoItems\31\item31.doc