DISCUSS AND BEGIN PRIORITY
SETTING FOR Water Supply Project OPTIONS for the
March 27, 2008
Darby W. Fuerst
Line Item No.:
Andrew Bell and
General Counsel Approval: N/A
Committee Recommendation: N/A
CEQA Compliance: N/A
SUMMARY: The Monterey Peninsula Water Management District (MPWMD) Board updated its Strategic Plan in February 2008. The seventh strategic objective under the long-term water supply goal is to “prioritize water supply alternatives” at the April 21, 2008 meeting. Based on a review of several water supply options over the past few months, including information presented under Agenda Items 1 and 2 at the March 27, 2008 Special Workshop, the Board will begin discussion of which alternative or alternatives should be prioritized in terms of District resources (staff, consultants, budget) in the coming fiscal year.
For several years, seven water supply options have been evaluated, most recently in the 2008 Matrix of Water Supply Alternatives received at the March 17, 2008 meeting. They include:
1. Coastal Water Project (CWP) sponsored by California American Water (CAW).
2. North Monterey County Desalination Project (NMCDP) sponsored by the Pajaro/Sunny Mesa Community Services District (P/SM).
Desalination Project (SDP) in
4. Offshore Seawater Desalination Vessel (SDV) sponsored by Water Standard Company.
5. Aquifer Storage and Recovery in Seaside Basin (ASR) sponsored by MPWMD.
6. Regional Urban Water Augmentation Project (RUWAP) sponsored by Marina Coast Water District (MCWD) and Monterey Regional Water Pollution Control Agency (MRWPCA).
7. Groundwater Replenishment Project (GRP) sponsored by MRWPCA.
Exhibits 3-A, 3-B, and 3-C comprise the refined 2008 Matrix, which
include edits suggested by the Board at its March 17, 2008 meeting, as well as
minor corrections. A brief description
if each project is provided below in the “Discussion” section. Information provided by CAW for its
presentation on the CWP in Agenda Item 1 may provide more recent information
that will be integrated into the Matrix.
Similarly, Agenda Item 2 should provide new information on the scope and
cost to complete needed engineering studies and a Final Environmental Impact
Report (EIR) for the District’s proposed Seawater Desalination Project in the
At its March 17, 2008 meeting, the Board also heard a presentation about a relatively new regional concept, the “Sustainable Water Supply Program for Monterey County,” that is still in the process of being formally defined. This concept is sponsored by the California Public Utilities Commission Division of Ratepayer Advocates (CPUC/DRA), and is envisioned to be evaluated as an alternative in the Draft EIR for the Coastal Water Project. The March 17, 2008 power-point presentation is provided as Exhibit 3-D.
It is notable that information about the scope of tasks and possible timeline for expansion of the existing Los Padres Dam is on the MPWMD Board agenda for April 21, 2008. No information is available at this writing.
The matrix goal was to consolidate information about water supply options. Four desalination alternatives were recently evaluated in detail in the B-E/GEI Final report accepted by the Board at its February 28, 2008 meeting. The report Executive Summary is provided as Exhibit 3-E. Please refer to the District website for more information at:
In 2007, the Community Advisory Committee (CAC) was charged with reviewing the seven alternatives in the matrix and identifying advantages and disadvantages associated with each. The Executive Summary from the CAC’s final report received by the Board at its September 17, 2007 meeting is provided as Exhibit 3-F. Please refer to the District website for more information at:
Information about each CAC meeting is provided on the website at:
RECOMMENDATION: The Board should review the above information on water supply options, ask questions, begin discussion of setting priorities among these alternatives, and indicate whether or not a specific agenda item should be prepared for future consideration.
Staff does not have specific recommendations for prioritizing alternatives or for the process the Board should use to decide which alternatives should be prioritized, as those are policy decisions to be made by the Board. However, to aid the Board in its deliberations, staff suggests the Board may wish to consider the “Decision Elements” in the matrix as well as other factors, and to collectively decide which ones are the most important. The primary matrix topics include the following:
Ø Project description
Ø Water yield, including recipients and phasing, and quantities slated to address SWRCB Order 95-10 and/or Seaside Basin Adjudication
Ø Project cost to customers, including detailed cost breakout of capital, operations and cost per acre-foot
Ø Financing and assumptions
Ø Timeline and key milestones
Ø Permits needed and regulatory agencies involved
Ø Site control
Ø Project operations and proponent capabilities
Ø Project participants including MPWMD opportunities
Ø Public involvement
Other factors to consider that are not listed specifically in the matrix might include:
Ø Environmental issues
Ø Meeting future needs
Ø Opportunities for cooperation and co-funding/partnering
Ø Acceptability to the public/community support
Ø District policy which to the extent feasible, requires development of the water resources within the District boundaries before utilizing water originating outside its boundaries (District Law, Section 118-325.5)
BACKGROUND: Previous Board meetings and information sources are reviewed in the “Summary” section above. Extensive information is available on the District website.
DISCUSSION: The following paragraphs briefly describe the water supply options in the matrix as well as the other projects noted in the “Summary” section above.
Coastal Water Project (Sponsor: CAW)
The major components of the
proposed CWP are a seawater desalination plant in Moss Landing at the “Duke
East” site on Dolan Road about one-half mile east of Highway 1; use of the
intake and outfall for LS Power Group’s Moss Landing Power Plant (MLPP),
formerly owned by Duke Energy.; a desalinated water conveyance system to the
Monterey Peninsula, including a transmission pipeline, terminal reservoir and
pumping stations; and an ASR project in the Seaside Groundwater Basin. CAW plans to use a site on the MLPP property for
a one-year pilot project, but does not yet have a long-term lease agreement for
the proposed CWP facilities. The yield
goal for the “basic project” is defined as 11,730 AFY to: (a) provide 10,730
AFY to replace CAW’s
Project components of the NMCDP include a seawater
desalination plant in Moss Landing, transmission pipeline to the
and Mineral Corporation’s Moss Landing facility, with
planned use of existing intake/outfall pipelines, with possible use of LS Power
Group intake and outfall, if needed. A
lease agreement with the property owner has been in effect since March
2004. The yield goal is 20,000 to 23,000
AFY or more, depending on purveyor demand. A 20 MGD project, capable of producing up to
22,400 AFY, was used for cost estimates provided in 2006. Total demands of 20,930 AFY are identified in
P/SM materials provided to MPWMD. The
project is intended as a regional project, including meeting the needs of the
expanding P/SM service area in northern
Seawater Desalination Project
The MPWMD Seawater Desalination Project
is comprised of a seawater desalination plant in the
Seawater Desalination Vessel (Proponent: Standard Water Company)
Representatives of three firms participating in the project, Standard Water Company, PBS&J, and GE Energy, presented the concept to the Board at a workshop on August 31, 2006. The seawater desalination vessel project, proposed by Standard Water Company, is based upon an offshore “mother ship” containing a seawater desalination plant using reverse osmosis technology and one or more gas turbine engines to provide energy for the desalination process and associated shipboard facilities. Treated water would be delivered to an onshore water distribution system such as CAW’s using either a pipeline placed on the seabed or a “shuttle ship” tanker to deliver water to a shoreside facility for unloading.
Aquifer Storage and Recovery
The MPWMD ASR Project diverts
“excess” flow from the
injection/recovery wells located
just east of
The State Water Resources Control Board issued the permanent water rights permit for the Phase 1 ASR Project in November 2007. Drilling and outfitting of the second of the two District Phase 1 ASR injection/recovery wells was completed in 2007. Work continues to complete improvements to the CAW distribution system to allow full use of the two wells. Pending completion of these improvements, MPWMD plans to test the injection capacity of both wells together in mid-2008 by using water supplied from the MCWD system.
The MPWMD Phase 1 ASR is similar to, but not the same ASR project described for CAW’s CWP proposal. In 2006 the District and CAW signed a Management and Operations Agreement (M&OA) regarding near-term and long-term ASR projects. MPWMD and CAW staff are working to develop an expanded ASR project, ranging from two additional wells intended to complete the ASR portion of the CWP to a larger project that could yield additional water supply
Regional Urban Water Augmentation Project (Sponsors: MCWD and MRWPCA)
The RUWAP involves two major
water augmentation supply projects: seawater desalination and recycled water.
In the 2004 matrix, a previous variation was referred to as the Regional Urban
Recycled Water Project, and focused solely on the use of reclaimed water. Only 300 AFY is designated for use by CAW customers
for non-potable uses such as golf courses, cemeteries, parks and other
landscape open space. The RUWAP could be
combined with ASR or the other desalination projects described in the matrix to
meet needs of the
Groundwater Replenishment Project (Sponsor: MRWPCA)
A second, related concept known
as the Groundwater Replenishment Project (GRP) is currently being evaluated by
MRWPCA. The GRP concept envisions
treatment of recycled water to near-potable condition for groundwater
percolation or injection into the
Sustainable Water Supply Program for
This group of potential projects
is being developed through a process initiated by the California Public
Utilities, Division of Ratepayer Advocates (CPUC/DRA). The projects are intended to be an
alternative to CAW’s Coastal Water Project that would be more affordable to
water customers. The original intent has
been expanded to include supplies for a much larger number of customers than
would be served by the CWP. Areas to be
served include the
Aquifer storage and recovery
Recycled wastewater from the MRWPCA regional treatment plant for
non-potable uses, both agricultural and urban use
groundwater injection for potable use
Brackish water desalination project in north
Pumping from the Salinas Groundwater Basins.
Energy supplied by methane co-generation
and other sustainable technologies are planned to be used. MPWMD staff and Board members have been
involved in the series of meetings, known as the Regional Plenary Oversight
Group, or REPOG, convened by consultants to the CPUC/DRA, along with
representatives of other water and wastewater agencies, cities,
3-A MPWMD Comparative Matrix, Part I, Desalination Projects (March 2008)
3-B MPWMD Comparative Matrix, Part II, Desalination Projects (March 2008)
3-C MPWMD Comparative Matrix, Part III, Projects Other than Desalination (March 2008)
3-D PowerPoint presentation by Lyndel Melton,
RMC Water and Environment: Sustainable
Water Supply Program for
3-E Title page, Table of Contents, and Executive Summary of final report titled “Evaluation of Seawater Desalination Projects Proposed for the Monterey Peninsula,” by Bookman-Edmonston/GEI Consultants, Separation Processes Inc., and Malcom-Pirnie Inc. (February 20, 2008)
3-F Title page, Table of Contents, and Executive Summary, Final Report from the Community Advisory Committee to the Monterey Peninsula Water Management District Board of Directors (September 11, 2007)