East Bay Municipal Utility District (EBMUD), colloquially referred to as "East Bay Mud", is a public utility district which provides water and sewage treatment services for an area of approximately in the eastern side of the San Francisco Bay. As of 2018, EBMUD provides drinking water for approximately 1.4 million people in portions of Alameda County and Contra Costa County in California, including the cities of Richmond, El Cerrito, Hercules, San Pablo, Pinole, Lafayette, Moraga, Orinda, Danville, Oakland, Piedmont, Emeryville, Berkeley, Albany, Alameda, San Leandro, neighboring unincorporated regions, and portions of cities such as Hayward and San Ramon. Sewage treatment services are provided for 685,000 people in an 88-square-mile area (as of 2018). EBMUD currently has an average annual growth rate of 0.8% and is projected to serve 1.6 million people by 2030. Headquartered in Oakland, EBMUD owns and maintains 2 water storage reservoirs on the Mokelumne River, 5 terminal reservoirs, of water transmission aqueducts, of water mains, 6 water treatment plants (WTPs), of wastewater interceptor sewer lines and a regional wastewater treatment facility (WWTF) rated at a maximum treatment capacity of 320 MGD. EBMUD Reservoirs Camanche Reservoir Pardee Reservoir Briones Reservoir Lafayette Reservoir San Pablo Reservoir Upper San Leandro Reservoir History In 1923, EBMUD was founded due to the rapid population growth and severe drought in the area. The district constructed Pardee Dam (finished in 1929) on the Mokelumne River in the Sierra Nevada, and a large steel pipe Mokelumne Aqueduct to transport the water from Pardee Reservoir across the Central Valley to the San Pablo Reservoir located in the hills of the East Bay region. In subsequent years, EBMUD constructed two additional aqueducts to distribute water to several other East Bay reservoirs. From the various large regional reservoirs, water is transported to treatment plants and delivered to local reservoirs and tanks, thence distributed by gravity to customers. In the 1980s with federal grant funding, EBMUD undertook a major facility expansion to accommodate wet weather waste water overflow (i.e. the vastly increased system demand in the rainy season). This project took many years of construction for implementation, after the planning and Environmental Impact Statement phases. In 1994, the EBMUD board of directors approved the Seismic Improvement Plan (SIP), a $189 million capital project designed to minimize damage and disruption in the event of a potential earthquake along the Hayward Fault. One of EBMUD's main water supply lines, the Claremont