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75E - PH - WATER MANAGEMENT PLAN
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75E - PH - WATER MANAGEMENT PLAN
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6/2/2016 4:41:33 PM
Creation date
6/2/2016 4:18:02 PM
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City Clerk
Doc Type
Agenda Packet
Agency
Public Works
Item #
75E
Date
6/7/2016
Destruction Year
2021
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2015 URBAN WATER MANAGEMENT PLAN <br />• Up to $340 per AF for 25 years, depending on the unit cost of seawater produced compared to the <br />cost of Metropolitan supplies <br />• Up to $475 per AF for 15 years, depending on the unit cost of seawater produced compared to the <br />cost of Metropolitan supplies <br />Developing local supplies within Metropolitan's service area is part of their IRP goal of improving water <br />supply reliability in the region. Creating new local supplies reduce pressure on imported supplies from the <br />SWP and Colorado River, <br />On May 6th, 2015, the SWRCB approved an amendment to the state's Water Quality Control Plan for the <br />Ocean Waters of California (California Ocean Plan) to address effects associated with the construction <br />and operation of seawater desalination facilities (Desalination Amendment). The amendment supports the <br />use of ocean water as a reliable supplement to traditional water supplies while protecting marine life and <br />water quality. The California Ocean Plan now formally acknowledges seawater desalination as a <br />beneficial use of the Pacific Ocean and the Desalination Amendment provides a uniform, consistent <br />process for permitting seawater desalination facilities statewide. <br />If the following projects are developed, Metropolitan's imported water deliveries to Orange County could <br />be reduced. These projects include the Huntington Beach Seawater Desalination Project, the Doheny <br />Desalination Project, and the Camp Pendleton Seawater Desalination Project. <br />The City has not investigated seawater desalination as a result of economic and physical impediments. <br />Brackish groundwater is groundwater with a salinity higher than freshwater, but lower than seawater. <br />Brackish groundwater typically requires treatment using,desalters. <br />7.4.1 Groundwater <br />There are currently no brackish groundwater opportunities within the City's service area. <br />7.4.2 Ocean Water <br />Huntington Beach Seawater Desalination Project — Poseidon Resources LLC (Poseidon), a private <br />company, is developing the Huntington Beach Seawater Desalination Project to be co- located at the AES <br />Power Plant in the City of Huntington Beach along Pacific Coast Highway and Newland Street. The <br />proposed project would produce up to 50 MGD (56,000 AFY) of drinking water to provide approximately <br />10 percent of Orange County's water supply needs. <br />Over the past several years, Poseidon has been working with OCWD on the general terms and conditions <br />for selling the water to OCWD. OCWD and MWDOC have proposed a few distribution options to agencies <br />in Orange County. The northern option proposes the water be distributed to the northern agencies closer <br />to the plant within OCWD's service area with the possibility of recharging /injecting a portion of the product <br />water into the OC Basin. The southern option builds on the northern option by delivering a portion of the <br />product water through the existing OC -44 pipeline for conveyance to the south Orange County water <br />agencies. A third option is also being explored that includes all of the product water to be recharged into <br />the OC Basin. Currently, a combination of these options could be pursued. <br />75E -85 <br />arcadismm 7 -2 <br />
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