Orange County Water District

Orange County Water District
Name	Orange County Water District
Native name	OCWD
Formation	1933
Type	Special District
Headquarters	Fountain Valley, California
Leader title	General Manager
Leader name	Gilbert A. (Gib) Sarmiento
Region served	North Orange County

Orange County Water District is a public water management agency serving north Orange County, California, overseeing groundwater resources, recharge, treatment, and water quality for cities and agencies including Anaheim, Santa Ana, and Huntington Beach. The District operates major facilities such as the Groundwater Replenishment System and Prado Dam recharge areas and coordinates with state and federal entities including the California Department of Water Resources, United States Bureau of Reclamation, and Orange County Flood Control District. OCWD's activities intersect with regional projects and institutions such as Metropolitan Water District of Southern California, Orange County Sanitation District, Cal State Fullerton, and University of California, Irvine.

History

OCWD was formed in 1933 amid infrastructure expansion following the California Gold Rush era water development and the growth of communities like Anaheim, Santa Ana, and Fullerton. Early actions involved collaboration with the United States Army Corps of Engineers on flood control and with the Santa Ana River Commission on recharge projects, mirroring statewide trends epitomized by the California Water Plan and legislation such as the Water Commission Act. During mid-20th century urbanization, OCWD partnered with agencies including Metropolitan Water District of Southern California and Orange County Flood Control District to expand groundwater extraction and recharge, later responding to legal frameworks like the California Environmental Quality Act and federal Clean Water Act. In the 21st century, OCWD pioneered advanced water reuse through partnerships with Orange County Sanitation District, National Science Foundation-funded researchers, and industry partners to develop the Groundwater Replenishment System alongside academic groups at University of California, Irvine and California State University, Long Beach.

Governance and Organization

OCWD is governed by a publicly elected board composed of directors representing municipal wholesalers and retail agencies such as Anaheim Public Utilities, City of Santa Ana, and Newport Beach Water Department; it interacts with the California State Water Resources Control Board, California Public Utilities Commission in regulatory matters, and the United States Environmental Protection Agency on drinking-water standards. Administrative leadership coordinates programs with Metropolitan Water District of Southern California, United States Bureau of Reclamation, Orange County Sanitation District, and regional planning bodies including the Southern California Association of Governments. Committees address finance, engineering, and water quality with expertise from institutions such as Stanford University, Caltech, and the Water Research Foundation.

Water Sources and Supply Management

OCWD manages diversified supplies including local groundwater pumped from the Santa Ana River Basin, imported water purchased from Metropolitan Water District of Southern California sourced via the State Water Project and Colorado River Aqueduct, and recycled water produced by Orange County Sanitation District and municipal wastewater plants. Supply planning integrates projections from California Department of Water Resources, National Oceanic and Atmospheric Administration hydrology forecasts, and research from the United States Geological Survey. During droughts the District shifts reliance toward groundwater and recycled supplies, coordinating with agencies like the Bureau of Reclamation, Southern California Edison on energy-water nexus, and the Metropolitan Water District for conjunctive use and transfer agreements.

Groundwater Basin and Recharge Operations

The Sulphur, Santiago, and Anaheim thrust areas within the Santa Ana River Basin form OCWD's principal groundwater basin, recharged through percolation basins at Prado Flood Control Basin, Anaheim Lake, and Talbert Marsh. Recharge operations are integrated with flood control projects by the United States Army Corps of Engineers and Orange County Public Works, using storm flows from the Santa Ana River and treated effluent from Orange County Sanitation District and municipal treatment plants. Groundwater modeling and monitoring rely on data and methods from United States Geological Survey, California Department of Water Resources, and universities such as University of California, Riverside and Cal State Fullerton to assess aquifer storage, subsidence risks, and seawater intrusion mitigations near Huntington Beach and Seal Beach.

Water Treatment and Quality

OCWD's treatment portfolio includes advanced processes in the Groundwater Replenishment System—microfiltration, reverse osmosis, and ultraviolet/advanced oxidation—developed with technology partners and validated by research from the Water Research Foundation, National Science Foundation, and academic laboratories at University of California, Irvine and Stanford University. Water quality compliance follows standards set by the United States Environmental Protection Agency and California State Water Resources Control Board, with routine monitoring coordinated with Orange County Health Care Agency and municipal health departments. OCWD works with laboratories accredited by the American Water Works Association and collaborates on emerging contaminant research with institutions such as the Environmental Protection Agency's Office of Research and Development and the National Institutes of Health.

Facilities and Infrastructure

Key facilities include the Groundwater Replenishment System near Fountain Valley, Prado Dam recharge basins, Talbert Seawater Intrusion Barrier wells, and multiple production wells across cities like Anaheim, Fullerton, and Westminster. Infrastructure asset management involves engineers and contractors experienced with the United States Army Corps of Engineers projects, Metropolitan Water District conveyance systems, and Orange County Flood Control District channels. OCWD also maintains monitoring networks, laboratory facilities, and pilot plants supported by grants from agencies such as the Bureau of Reclamation, California Energy Commission, and private-sector firms including engineering firms and equipment manufacturers.

Environmental Programs and Conservation initiatives

OCWD implements habitat restoration at Talbert Marsh and Bolsa Chica regions in partnership with California Department of Fish and Wildlife, U.S. Fish and Wildlife Service, and local NGOs such as Audubon Society chapters and The Nature Conservancy. Conservation outreach programs coordinate with municipal water agencies including Irvine Ranch Water District, Buena Park, and Costa Mesa to promote water-use efficiency, rebate programs, and turf replacement initiatives modeled on statewide efforts like California Water Plan goals. OCWD participates in regional climate adaptation planning with Southern California Association of Governments, California Coastal Commission, and California Energy Commission to address sea-level rise impacts, groundwater sustainability under the Sustainable Groundwater Management Act, and integrated water resource management alongside academic partners and environmental nonprofits.

Category:Water management in California Category:Organizations established in 1933