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2025 URBAN WATER MANAGEMENT PLAN <br /> MAY 2026/FINAL DRAFT/CAROLLO <br /> project will enhance local green space, improve water quality, and advance the City's long-term goals for <br /> integrated urban water management and climate resilience. <br /> .6 Wastewater and Recycled Water <br /> The City is directly involved in wastewater services through its ownership and operation of the wastewater <br /> collection system in its service area. However, the City does not own or operate wastewater treatment <br /> facilities. The sewer system service area includes approximately 392 miles of sewer main.The wastewater <br /> system serves about 335,605 customers (City of Santa Ana, 2016). For additional details on the City's <br /> wastewater services, refer to the 2016 City of Santa Ana Sewer Master Plan. <br /> Recycled water is wastewater that is treated through primary, secondary, and tertiary processes and is <br /> acceptable for most non-potable water purposes such as irrigation, and commercial and industrial process <br /> water per Title 22 requirements. Recycled water opportunities have continued to grow in Southern <br /> California as public acceptance and the need to expand local water resources continues to be a priority. <br /> Recycled water also provides a degree of flexibility and added reliability during drought conditions when <br /> imported water supplies are restricted.The City is indirectly involved in recycled water production, <br /> through its supply of wastewater for indirect potable reuse (IPR).The following sections expand on the <br /> existing agency collaboration involved in these efforts as well as the City's projected recycled water use <br /> over the next 25 years. <br /> Agency Coordination <br /> The City does not own or operate wastewater treatment facilities and sends all collected wastewater to <br /> OC San for treatment and disposal. OC San provides treated water to OCWD,the manager of the <br /> OC Basin. OCWD is the manager of the OC Basin and strives to maintain and increase the reliability of the <br /> OC Basin through replenishment with imported water, stormwater, and advanced treated wastewater. A <br /> full description of the OC Basin is available in Section 6.3.1. OCWD and OC San havejointly constructed <br /> and expanded two water recycling projects to meet this goal that include: (1) OCWD Green Acres Project <br /> (GAP); and (2) OCWD GWRS. <br /> 6.6.1.1 Orange County Sanitation District <br /> OC San collects wastewater from residential, commercial, and industrial customers in 21 cities, 3 special <br /> districts, and portions of unincorporated Orange County, totaling 479 square miles that serves more than <br /> 2.5 million residents in north and central Orange County.These flows include dry weather urban runoff <br /> collected from 15 diversion points and discharged into the sewer system for treatment and Santa Ana <br /> River Interceptor flows from the upper Santa Ana watershed (OCWD, 2023). <br /> OC San operates and maintains two treatment plants: Reclamation Plant No. 1 located in Fountain Valley, <br /> with a capacity of 320 mgd, and Reclamation Plant No. 2 located in Huntington Beach, with a capacity of <br /> 312 mgd. OC San also operates 572 miles of collection system pipelines along with 15 offsite pump <br /> stations.Approximately 150 mgd of secondary effluent undergoes advanced treatment at the GWRS <br /> facility operated by the OCWD and 7 mgd undergoes tertiary treatment at OCWD's GAP facility.Treated <br /> wastewater is discharged to the Pacific Ocean via an ocean outfall in compliance with state and federal <br /> requirements as set forth in OC San's National Pollutant Discharge Elimination System (NPDES) permit. <br /> CITY OF SANTA ANA <br />