ITEM:

INFORMATION ITEMS/STAFF REPORT

 

26.

MONTHLY WATER SUPPLY AND CALIFORNIA AMERICAN WATER PRODUCTION REPORT

 

Meeting Date:
May 20, 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 26-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of May 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 26-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 April 2013 totaled 0.48 inches and brings the cumulative rainfall total for WY 2013 to 14.47 inches, which is 70% of the long-term average through April.  Estimated unimpaired runoff during April 2013 totaled 1,402 acre-feet (AF) and brings the cumulative runoff total for WY 2013 to 26,183 AF, which is 42% of the long-term average through April.  Usable storage, which includes surface and groundwater, was 30,360 AF, or 94% of the long-term average through April.  This storage equates to 81% of system capacity.  In addition, 249 adult steelhead were counted in the fish ladder at San Clemente Dam for WY 2013 through April.

 

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 April, Cal-Am has produced 5,998 AF from the Carmel River, Seaside Basins, Sand City Desalination, and ASR recovery, for customer use.  This water production is 401 AF or 6.3% less than the target specified for Cal-Am’s production from the MPWRS for WY 2013 through April.  A breakdown of Cal-Am’s production for WY 2013 through April is included as Exhibit 26-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 April, 295 AF of Carmel River Basin groundwater have been diverted for Seaside Basin injection; 131 AF have been recovered for customer use.  Exhibit 26-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

26-A    Water Supply Status: May 1, 2013

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

26-C       Monthly Cal-Am production by source: WY 2013                  U:\staff\Boardpacket\2013\20130520\InfoItems\26\item26.docx