|
ITEM:
|
INFORMATIONAL
ITEMS/STAFF REPORT
|
|
|
|
26.
|
MONTHLY WATER SUPPLY STATUS
REPORT
|
|
|
|
Meeting
Date:
|
October 20, 2008
|
Budgeted:
|
N/A
|
|
|
|
From:
|
Darby Fuerst,
|
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 26-A shows the
water supply status for the Monterey Peninsula Water Resources System (MPWRS)
as of October 1, 2008. This system
includes the surface water resources in the Carmel
River Basin, the ground water
resources in the Carmel Valley Alluvial Aquifer and the Coastal Subareas of the
Seaside Groundwater Basin.
Exhibit
26-A focuses on four factors: rainfall, runoff, storage, and
steelhead. The report is limited to the
water year that began October 1, 2007 and ended September 30, 2008 (WY 2008). 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 2008 totaled 19.6 inches, which is 92% of the
long-term average. Runoff during WY 2008
totaled 49,020 acre-feet (AF), which is 71% of average. Usable storage, which includes surface and
groundwater, was 25,690 AF or 91% of average at the end of September. This storage equates to 68% of system
capacity. In addition, 412 adult steelhead were counted in the fish ladder at
San Clemente Dam and approximately 83,380 juvenile steelhead were rescued
from drying reaches of the Carmel
River mainstem by District
staff in WY 2008.
Production Compliance:
Under State Water Resources Control Board (SWRCB) Order No. WR 95-10,
California American Water (CAW) is allowed to produce 11,285 AF of water from Carmel River
sources in WY 2008. Under a separate
Memorandum of Understanding (MOU) with the National Marine Fisheries Service
and the California Department of Fish and Game, this amount is reduced each
year by the amount of water that is actually recovered from the Seaside Basin
as part of the Phase
1 Aquifer Storage and Recovery (ASR) Project and delivered to CAW’s customers
during the low-flow period. For example,
in WY 2008, CAW recovered 60 AF of stored ASR water from the Seaside Basin
during the July through September period for customer service. As a result, CAW’s annual production limit
under Order 95-10 and the NMFS/CDFG MOU in WY 2008 was 11,225 AF.
Under the Seaside Basin Decision, CAW is allowed to produce 3,504 AF
of water from the Coastal Subareas of the Seaside Groundwater
Basin in WY 2008. Altogether, CAW was allowed to produce 14,729
AF from Carmel River and Seaside Coastal sources for
customers in its main system. For WY 2008,
CAW diverted 13,929 AF from the Carmel
River and Seaside basins for customer use under its
Order 95-10 rights. This water
production is 800 AF or approximately 5.4% less than the target
system production specified for customers in the main system in WY 2008.
A monthly breakdown of CAW’s production from the Carmel River and the
Coastal Subareas of the Seaside Groundwater Basin for WY 2008 is included as Exhibit 26-B. CAW’s production from the Carmel River Basin
is reduced for diversions that are made for injection into the Seaside Basin.
These diversions are authorized under a water right that is jointly held
by CAW and the District and are separate from the rights that were recognized
for CAW in Order 95-10. During WY 2008, CAW
diverted 60 AF that was provided to the District for injection into the Coastal
Subareas of the Seaside
Groundwater Basin.
EXHIBITS
26-A Water Supply Status: October 1, 2008
26-B Monthly CAW Diversions from Carmel River and
Seaside Groundwater Basins: Water Year
2008
U:\staff\word\boardpacket\2008\2008boardpackets\20081020\InfoItems\26\item26.doc