EXHIBIT
12-B
Quarterly
Water Supply Strategy and Budget Report California American Water
Main
Water Distribution System: January - March 2022
1. Management Objectives
The
Monterey Peninsula Water Management District (District) desires to maximize the
long-term production potential and protect the environmental quality of the
Carmel River and Seaside Groundwater Basins. In addition, the District desires
to maximize the amount of water that can be diverted from the Carmel River
Basin and injected into the Seaside Groundwater Basin while complying with the
instream flow requirements recommended by the National Marine Fisheries Service
(NMFS) to protect the Carmel River steelhead population. To accomplish these
goals, a water supply strategy and budget for production within California
American Water’s (Cal-Am’s) Main and Laguna Seca Subarea water distribution
systems is reviewed quarterly to determine the optimal strategy for operations,
given the current hydrologic and system conditions, and legal constraints on
the sources and amounts of water to be produced.
2. Quarterly Water Supply Strategy: January - December 2022
On
December 7, 2021 the Quarterly Water Budget Group including staff from the
District, CalAm, the National Marine Fisheries Services (NMFS), State Water
Resources Control Board’s Division of Water Rights (SWRCB-DWR), and the
California Department of Fish and Wildlife (CDFW) met and discussed the
proposed water supply strategy and related topics for upcoming quarter.
Carmel
River Basin Cal-Am will operate its wells in the Lower Carmel Valley in a
downstream to upstream sequence, as needed to meet customer demand. The group
discussed the early storm in October and the lower than normal rainfall in
November resulting in Los Padres Reservoir filling slowly. The group discussed the construction of the
Parallel Pipeline that will allow for simultaneous injection of Carmel River
water and recovery of Pure Water Monterey.
If rainfall occurs during this quarter and the Parallel Pipeline is
completed, Cal-Am and the District will use the Santa Margarita Site to divert
and inject Carmel River water. The Upper
Valley wells will be used to support ASR injection once the flow triggers are
reached and the Low-Flow regime is no longer in effect.
Seaside
Groundwater Basin For this quarter, the Seaside Groundwater Basin will be the
largest component of supply to meet system demand. Most of the production from the Seaside Basin
will be Pure Water Monterey recovery.
Once the Parallel Pipeline is completed, ASR 1 and 2 will be used for
injection if flow triggers are reached on the Carmel River.
It
is recognized that, based on recent historical use, Cal-Am’s production from the
Laguna Seca Subarea during this period may not be reduced to zero, as is set by
Cal-Am’s allocation specified in the Seaside Basin Adjudication Decision. In
this context, the production targets represent the maximum monthly production
that should occur so that Cal-Am remains within its adjudicated allocation for
the Laguna Seca Subarea. Under the amended Seaside Basin Decision, Cal-Am is
allowed to use production savings in the Coastal Subareas to offset
over-production in the Laguna Seca Subarea. However, the quarterly budget was
developed so that Cal-Am would produce all native groundwater in the Coastal
Subareas and Laguna Seca production would be over the Adjudication
allotment. On February 5, 2020 the
Seaside Groundwater Basin Watermaster Board voted to allow Cal-Am to claim
carryover credits to cover the pumping over the Laguna Seca allotment in the
interim prior to establishing a physical solution. Because of this decision, the Quarterly Water
Budget Group decided that the table presenting the Laguna Seca allotment of
zero would no longer be necessary as the Watermaster is now planning to handle
the pumping over allotment with a different mechanism.
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