Santa Ana Region - Dairies

Huntington Beach Desalination Facility Permit, Orange County

2021 Renewal of the Huntington Beach Desalination Facility Permit, Orange County

On April 29, 2021, Order R8-2021-0011, the renewal of Waste Discharge Requirements and National Pollutant Discharge Elimination System Permit (NPDES No. CA8000403) for Poseidon Resources (Surfside) L.L.C. (Discharger), Huntington Beach Desalination Facility and its associated Water Code 13142.5(b) was adopted by the Santa Ana Water Board.  The Order covers the intake and discharge systems for the Discharger’s proposed Huntington Beach Desalination Facility (Facility).  The proposed Facility will be located at 21730 Newland Street, Huntington Beach on twelve acres at the AES Huntington Beach Generating Station (AES HBGS). The Discharger proposes to modify and operate the AES HGBS intake and discharge systems for its desalination operations. The Facility will produce an average annual volume of 50 million gallons per day (MGD) of potable water through a reverse osmosis (RO) process. The treatment process requires an intake of seawater averaging 106.7 MGD; and a discharge of concentrated brine averaging 56.59 MGD.
A copy of Order R8-2021-0011 or any of the supporting documentations will be provided upon request.  For these requests, contact Ryan Harris at (951) 320-2008 or .


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