ITEM:

INFORMATION ITEMS/STAFF REPORT

 

19.

MONTHLY WATER SUPPLY AND CALIFORNIA AMERICAN WATER PRODUCTION REPORT

 

Meeting Date:
April 15, 2013

Budgeted: 

N/A

 

From:

David J. Stoldt,

Program/

N/A

 

General Manager

Line Item No.:

 

 

 

 

Prepared By:

Jonathan Lear

Cost Estimate:

N/A

 

General Counsel Review:  N/A

Committee Recommendation:  N/A

CEQA Compliance:  N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhibit 19-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of April 1, 2013.  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 19-A is for Water Year (WY) 2013 and focuses on four factors: rainfall, runoff, storage, and steelhead.  The rainfall and streamflow values are based on measurements in the upper Carmel River Basin at San Clemente Dam. 

 

Water Supply Status:  As shown, rainfall during March 2013 totaled 0.90 inches and brings the cumulative rainfall total for WY 2013 to 13.99 inches, which is 74% of the long-term average through March.  Estimated unimpaired runoff during March 2013 totaled 2,167 acre-feet (AF) and brings the cumulative runoff total for WY 2013 to 24,781 AF, which is 46% of the long-term average through March.  Usable storage, which includes surface and groundwater, was 30,350 AF, or 96% of the long-term average through March.  This storage equates to 81% of system capacity.  In addition, 226 adult steelhead were counted in the fish ladder at San Clemente Dam for WY 2013 through March.

 

Production Compliance:  Under State Water Resources Control Board (SWRCB) Cease and Desist Order No. 2009-0060, California American Water (Cal-Am) is allowed to produce no more than 10,187 AF of water from the Carmel River in WY 2013.  In addition, under the Seaside Basin Decision, Cal-Am is allowed to produce 2,887 AF (2,669 AF of native water and 219 AF of pre-permanent ASR injected water) of water from the Coastal Subareas and 147 AF from the Laguna Seca Subarea of the Seaside Basin in WY 2013.  Altogether, Cal-Am is currently allowed to produce 13,221 AF from Carmel River and Seaside Coastal sources for customers in its main Monterey system and 147 AF from the Laguna Seca Subarea for customers in Ryan Ranch, Hidden Hills, and Bishop Systems (not adjusted for ASR recovery or Sand City Desalination).  For WY 2013 through March, Cal-Am has produced 4,991 AF from the Carmel River, Seaside Basins, Sand City Desalination, and ASR recovery, for customer use.  This water production is 424 AF or 7.8% less than the target specified for Cal-Am’s production from the MPWRS for WY 2013 through March.  A breakdown of Cal-Am’s production for WY 2013 through March is included as Exhibit 19-B.  Cal-Am’s production from the Carmel River Basin is reduced for diversions that are made for injection into the Seaside Basin; Cal-Am’s “native” Seaside Basin production is reduced for injected water recovery. For WY 2013 through March, 295 AF of Carmel River Basin groundwater have been diverted for Seaside Basin injection; 131 AF have been recovered for customer use.  Exhibit 19-C  shows production breakdown from all sources for all uses.

 

Some of the values in this report may be revised in the future as Cal-Am finalizes their production values and monitoring data.

 

EXHIBITS

19-A    Water Supply Status: April 1, 2013

19-B       Monthly Cal-Am Diversions from Carmel River and Seaside Groundwater Basins:  Water Year 2013

19-C       Monthly Cal-Am production by source: WY 2013

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