Doheny Desalination Plant

Coordinates: 33°27′58″N 117°40′52″W / 33.46611°N 117.68111°W

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Doheny Desalination Plant
Desalination plant

Location	Dana Point, California, US
Coordinates	33°27′58″N 117°40′52″W / 33.46611°N 117.68111°W / 33.46611; -117.68111

The Doheny Desalination Plant is a 5-million-US-gallon per day (19 Ml) facility proposed by South Coast Water District in Dana Point, California. The 30-acre site (12 ha) is just north of State Route 1 on east side of San Juan Creek with access off Stonehill Drive.^[1]

The Joint Regional Water Supply System will distribute desalinated water existing water transmission lines to South Coast Water District customers and south Orange County.^[2]^[3] Eastern Municipal Water District (EMWD), in Riverside County, approved a plan to buy paper water rights which involves the two agencies swapping rights on paper. The desalinated water EMWD paid for would still get mixed into South Coast’s system, while imported water that would have gone to the South Coast would instead go to EMWD’s customers.^[4]

The subsurface intake (slant) wells at Doheny State Beach will be fully buried beneath the ocean floor to protect marine life.^[5] Brine, the saltwater left over from the desalination process, would be co-mingled with treated wastewater in an existing outfall pipe 2 miles (3.2 km) offshore.^[6]^[7]

References

^ Alderton, Bryce (November 16, 2017). "If there's a Doheny desalination plant, South Coast Water District wants to build and run it". Los Angeles Times. Archived from the original on October 15, 2022. Retrieved October 15, 2022.
^ Final Environmental Impact Report and Responses to Public Comments | State Clearinghouse NO. 2016031038 | Doheny Ocean Desalination Project (PDF) (Report). South Coast Water District. June 2019. Archived (PDF) from the original on November 2, 2022. Retrieved November 2, 2022.
^ Coastal Commission Hearing on Doheny Desalination Project (PDF) (Report). California Coastal Commission. October 2022. Archived (PDF) from the original on November 2, 2022. Retrieved November 2, 2022.
^ Staggs, Brooke (March 2, 2024). "Ocean water from San Diego could stabilize south OC supply, boost desal". Orange County Register. Retrieved March 2, 2024.
^ "South Orange County water districts team up for possible desalination plant". ABC7 Los Angeles. November 27, 2014. Archived from the original on October 18, 2022. Retrieved October 18, 2022.
^ Hu, Charlotte (October 17, 2022). "As California plans for a new desalination plant, take a look at how these facilities work". Popular Science. Archived from the original on October 18, 2022. Retrieved October 18, 2022.
^ Smith, Hayley (November 7, 2022). "They used to call California ocean desalination a disaster. But water crisis brings new look". Los Angeles Times. Archived from the original on November 7, 2022. Retrieved November 7, 2022.

External links

Doheny Ocean Desalination Project, South Coast Water District
"Doheny Ocean Desalination Phase 1 Project | Bond Accountability". California Natural Resources Agency.
Staff Report | Application No.: 9-20-0691 (PDF) (Report). California Coastal Commission. September 30, 2022.

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