ITEM:
|
INFORMATIONAL
ITEMS/STAFF REPORT
|
|
23.
|
MONTHLY WATER SUPPLY
STATUS REPORT
|
|
Meeting Date:
|
August 15, 2011
|
Budgeted:
|
N/A
|
|
From:
|
Darby Fuerst,
|
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 23-A shows the
water supply status for the Monterey Peninsula Water Resources System (MPWRS)
as of August 1, 2011. 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-B
focuses on four factors: rainfall, runoff, storage, and steelhead. The report is limited to the water year that
began October 1, 2010 and will end September 30, 2011 (WY 2011). The rainfall and
streamflow values are based on measurements 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 July 2011 totaled
0.0 inches and brings the
cumulative rainfall total for WY 2011 to 24.73
inches,
which is 116% of the long-term
average through July of 21.23 inches. Estimated unimpaired
runoff during July 2011 totaled 2,211
acre-feet (AF) and brings the cumulative runoff total for WY 2011 to 100,023 AF, which is 146%
of the long-term average through July
of 68,519 AF. Usable storage, which includes surface and
groundwater, was 30,860 AF,
or 103% of the long-term average through
July of 30,110 AF. This storage
equates to 82% of system
capacity. In addition, 452 adult steelhead were counted in the fish
ladder at San Clemente Dam for WY 2011 through July.
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 10,429 AF
of water from the Carmel
River in WY 2011. In addition, under the Seaside Basin
Decision, Cal-Am is allowed to produce 3,202 AF of water from the Coastal
Subareas and 246 AF from the Laguna Seca Subarea of the Seaside Groundwater
Basin in WY 2011, as modified
by the Seaside Basin Watermaster in December 2010. Altogether, Cal-Am is currently
allowed to produce 13,631 AF from Carmel
River and Seaside Coastal sources for
customers in its main Monterey system and 246 AF
from the Laguna Seca Subarea for customers in its Laguna Seca subsystems, i.e.,
Ryan Ranch, Hidden Hills, and Bishop Systems (not adjusted for ASR recovery or Sand City
desalination plant production). For WY
2011 through July, Cal-Am has produced
9,856 AF from the Carmel River, Seaside
Basins, Sand City Desalination, and ASR recovery, for customer use. This water production is 1,160 AF or 10.5%
less than the target specified for Cal-Am’s production from the
MPWRS for WY 2011 through July. A monthly breakdown of Cal-Am’s production
from the Carmel River and the Seaside Groundwater Basin Subareas for WY 2011 through
July is included as Exhibit 23-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” production
from the Seaside Basin is reduced for the recovery of
injected water. For WY 2011 through July,
1,117 AF of groundwater have been
diverted from the Carmel River aquifer for injection into the Seaside Groundwater
Basin; 1,111 AF have been recovered for
customer use.
EXHIBITS
23-A Water Supply Status: August
1, 2011
23-B Monthly Cal-Am Diversions from Carmel
River and Seaside Groundwater Basins:
Water Year 2011
U:\staff\word\boardpacket\2011\20110815\InfoItems\23\item23.docx