13. Status Report on California American Water Compliance with State Water Resources Control Board Order 2009-0060 and Seaside Groundwater Basin Adjudication Decision
14. Update on Development of Water Supply Projects
15. Report on Results of Measure O
And
2.
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ITEM:
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CONSENT
CALENDAR
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2.
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Receive WATER YEAR
2013 AQUIFER STORAGE AND RECOVERY PROJECT SUMMARY OF OPERATIONS REPORT
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Meeting
Date:
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June 23, 2014 |
Budgeted: |
N/A |
||
From:
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David
J. Stoldt,
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Program/
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1-2-1
|
||
General
Manager
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Line Item No.:
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Prepared
By:
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Joe
Oliver
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Cost
Estimate:
|
N/A
|
||
| General Counsel Review: N/A | |||||
| Committee Recommendation: N/A | |||||
CEQA Compliance: N/A
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|||||
SUMMARY: A draft report
documenting the summary of operations for Water Year 2013 at the Seaside Basin
Aquifer Storage and Recovery (ASR) Project sites has been prepared by the
District’s technical consultant on the project, Pueblo Water Resources,
Inc. The draft report can be viewed on
the Monterey Peninsula Water Management District (MPWMD or District) home
webpage under “Water Supply Projects”. The report documents the ASR activities
conducted cooperatively with California American Water (Cal-Am) at the Phase 1
and 2 ASR sites during WY 2013, including:
(a) summary of project status and injection well performance, (b)
seasonal recharge operations, and (c) water-quality monitoring. During WY 2013, which was the second
consecutive hydrologic “dry year”, injection operations were commensurately
reduced from earlier years. A total
volume of 294.5 acre-feet (AF) of Carmel River Basin source water was injected
and stored in the Seaside Basin during the winter high-flow season for
subsequent recovery during the low-flow dry season. This contrasts with the over 1,100 AF that
were injected during each of the WY 2010 and 2011 recharge seasons. The completion of this annual report is a
requirement of the Central Coast Regional Water Quality Control Board (RWQCB)
as part of their ongoing oversight of the ASR program in the Seaside Basin.
RECOMMENDATION: The Board should receive the draft report
documenting ASR activities at the ASR project sites during WY 2013. If this item is adopted along with the
Consent Calendar, the report will be finalized and distributed, subject to inclusion
of comments from the District, Cal-Am or other interested parties.
BACKGROUND: The District has been pursuing Aquifer
Storage and Recovery (ASR) in the Seaside Basin since 1996. The project concept entails diverting excess
winter flows from the Carmel River Basin approximately six miles through
existing Cal-Am distribution system pipelines to the hydrologically-separate
Seaside Basin, where the water is injected into specially-constructed ASR
wells, for later recovery during dry periods.
Prior to injection, the diverted water is treated at Cal-Am’s Begonia
Iron Removal Plant in Carmel Valley so that it meets potable drinking water
standards. In 1998, the District
constructed a pilot injection well, known as the Paso Robles Test Injection
Well (PRTIW) in the northeastern portion of the City of Seaside. The 460-feet deep pilot well was screened in
the Paso Robles Formation aquifer.
Subsequent injection testing at the pilot well provided data that
allowed the District to proceed with construction of a larger injection test
well, SMTIW No. 1 (now referred to as ASR-1), for which construction was
completed in 2002 on the former Fort Ord Military Reservation, approximately 300 feet east of the
PRTIW. This site is known as the Phase 1
or Santa Margarita ASR facility. ASR-1
is an 18 inch-diameter, 720
feet deep stainless steel well screened in the Santa
Margarita Sandstone aquifer. The Santa
Margarita aquifer has more favorable hydrogeologic characteristics, and is
therefore more conducive to a full-scale ASR project in the basin. ASR-2 was drilled in 2007 and equipped with
permanent pump and motor in 2008. ASR-2
is larger and deeper, at 22
inches in diameter and 790 feet deep. In recent years, District staff has been
working with the City of Seaside and the Fort Ord Reuse Authority in order to
expand the Santa Margarita ASR site to incorporate needed space for pipelines,
treatment equipment, and well capacity.
Also in 2008,
the District began negotiations with the Monterey Peninsula Unified School District
(MPUSD) for potential use of an unused portion of the Seaside Middle School
property for a second phase of ASR expansion.
This was followed by successful exploration work at the site in 2009 and
an easement for the site was acquired by Cal-Am in 2011. The District has been working under contract
with Cal-Am to complete construction of permanent ASR facilities at this Phase
2 ASR site.
The draft WY
2013 report has been provided to Cal-Am staff for their review and
comment. The report, once finalized,
will be sent to the resource agencies that are overseeing authorization of the
ASR activities, including the RWQCB. The
report will also be a useful reference document to support future operations
and testing at the ASR Project sites.
IMPACTON
STAFF/RESOURCES: A significant staff effort
has been expended planning, coordinating, and overseeing work on the District’s
ASR program in the Seaside Basin . It is planned to continue this level of
effort during the remainder of this year and into the next recharge season.
IMPACT
EXHIBIT
None
AGENDA
Regular Meeting
Board
of Directors
Monterey
Peninsula Water Management District
******************
Monday,
June 23, 2014
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