East Bay Municipal Utility District
Encyclopedia
East Bay Municipal Utility District (EBMUD), colloquially referred to as "East Bay Mud", provides water and sewage treatment
Sewage treatment
Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants from wastewater and household sewage, both runoff and domestic. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants...

 for customers in portions of Alameda County
Alameda County, California
Alameda County is a county in the U.S. state of California. It occupies most of the East Bay region of the San Francisco Bay Area. As of the 2010 census it had a population of 1,510,271, making it the 7th most populous county in the state...

 and Contra Costa County
Contra Costa County, California
Contra Costa County is a primarily suburban county in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, it had a population of 1,049,025...

 in California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, on the eastern side
East Bay (San Francisco Bay Area)
The East Bay is a commonly used, informal term for the lands on the eastern side of the San Francisco Bay, in the San Francisco Bay Area, in California, United States...

 of San Francisco Bay
San Francisco Bay
San Francisco Bay is a shallow, productive estuary through which water draining from approximately forty percent of California, flowing in the Sacramento and San Joaquin rivers from the Sierra Nevada mountains, enters the Pacific Ocean...

, including the cities of Richmond
Richmond, California
Richmond is a city in western Contra Costa County, California, United States. The city was incorporated on August 7, 1905. It is located in the East Bay, part of the San Francisco Bay Area. It is a residential inner suburb of San Francisco, as well as the site of heavy industry, which has been...

, El Cerrito
El Cerrito, California
-Transportation:The city's primary transportation infrastructure consists of the El Cerrito Plaza and El Cerrito del Norte BART stations along with several local bus lines, operated by AC Transit, providing access to the surrounding area and the nearby cities of Albany, Berkeley and Richmond...

, Hercules
Hercules, California
Hercules is a city in western Contra Costa County, California. Situated along the coast of San Pablo Bay, it is located in the eastern region of the San Francisco Bay Area, about northeast of San Francisco. The city has a 2010 population of 24,060 according to the U.S...

, San Pablo
San Pablo, California
San Pablo is a city in Contra Costa County, California, United States. The city of Richmond surrounds nearly the whole city. The population was 29,139 at the 2010 census. The current Mayor is Paul V. Morris, and the current Vice Mayor is Cecilia Valdez. Current Councilmembers include Arturo M....

, Pinole
Pinole, California
Pinole is a city in Contra Costa County, California, United States. The population was 18,390 at the 2010 census. It is one of many small “bedroom communities” along the I-80 corridor in Western Contra Costa County. It is located about northeast of San Francisco, and approximately a half-hour...

, Lafayette
Lafayette, California
Lafayette is a city in Contra Costa County, California, United States. As of the 2010 census, the city's population was 23,893. It was named after the Marquis de Lafayette, a French military hero of the American Revolutionary War...

, Danville
Danville, California
The Town of Danville is located in the San Ramon Valley in Contra Costa County, California. It is one of the incorporated municipalities in California that uses "town" in its name instead of "city". The population was 42,039 in 2010. Danville is one of the wealthiest suburbs of Oakland and San...

, Oakland
Oakland, California
Oakland is a major West Coast port city on San Francisco Bay in the U.S. state of California. It is the eighth-largest city in the state with a 2010 population of 390,724...

, Piedmont
Piedmont, California
Piedmont is a small, affluent city in Alameda County, California, United States. It is surrounded by the city of Oakland. The population was 10,667 at the 2010 census. Piedmont was incorporated in 1907 and was developed significantly in the 1920s and 1930s...

, Emeryville
Emeryville, California
Emeryville is a small city located in Alameda County, California, in the United States. It is located in a corridor between the cities of Berkeley and Oakland, extending to the shore of San Francisco Bay. Its proximity to San Francisco, the Bay Bridge, the University of California, Berkeley, and...

, Berkeley
Berkeley, California
Berkeley is a city on the east shore of the San Francisco Bay in Northern California, United States. Its neighbors to the south are the cities of Oakland and Emeryville. To the north is the city of Albany and the unincorporated community of Kensington...

, Alameda
Alameda, California
Alameda is a city in Alameda County, California, United States. It is located on Alameda Island and Bay Farm Island, and is adjacent to Oakland in the San Francisco Bay. The Bay Farm Island portion of the city is adjacent to the Oakland International Airport. At the 2010 census, the city had a...

, San Leandro
San Leandro, California
San Leandro is a city in Alameda County, California, United States. It is considered a suburb of Oakland and San Francisco. The population was 84,950 as of 2010 census. The climate of the city is mild throughout the year.-Geography and water resources:...

, neighboring unincorporated regions, and portions of cities such as Hayward
Hayward, California
Hayward is a city located in the East Bay in Alameda County, California. With a population of 144,186, Hayward is the sixth largest city in the San Francisco Bay Area and the third largest in Alameda County. Hayward was ranked as the 37th most populous municipality in California. It is included in...

 and San Ramon
San Ramon, California
-2010 census:The 2010 United States Census reported that San Ramon had a population of 72,148. The population density was 3,991.1 people per square mile...

.

History

The district was founded after a severe drought in 1923 proved that a local system of reservoirs was inadequate. The district constructed Pardee Dam
Pardee Dam
Pardee Dam is a -high structure across the Mokelumne River which marks the boundary between Amador and Calaveras Counties, in the foothills of the Sierra Nevada approximately about northeast of Stockton....

 (finished in 1929) on the Mokelumne River
Mokelumne River
The Mokelumne River is a river in Northern California. The Upper Mokelumne River originates in the Sierra Nevada mountain range and flows into Pardee Reservoir and then Camanche Reservoir in the Sierra foothills. The Lower Mokelumne River refers to the portion of the river below Camanche Dam...

 in the Sierra Nevada, and a large steel pipe aqueduct to transport the water from Pardee Reservoir across the Central Valley to San Pablo Reservoir
San Pablo Reservoir
The San Pablo Reservoir is an open cut terminal water storage reservoir owned and operated by the East Bay Municipal Utility District . It is located in the valley of San Pablo Creek, north of Orinda, California and south of El Sobrante and Richmond, east of the Berkeley Hills between the Sobrante...

 located in the hills of the East Bay region. In subsequent years two additional aqueducts were constructed and the water distributed 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 households.

In the 1980s with federal grant funding EBMUD undertook a major facility expansion to accommodate wet weather 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
Environmental impact statement
An environmental impact statement , under United States environmental law, is a document required by the National Environmental Policy Act for certain actions "significantly affecting the quality of the human environment". An EIS is a tool for decision making...

phases.

In May 2008, EBMUD announced severe drought and austerity measures for its customers. With the easing of the drought, these measures were rescinded in 2010.
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