About MCWD
Mission
The Mammoth Community Water District is committed to carefully and effectively managing and maintaining our local water resources. The District provides water and wastewater services to meet the health and safety needs of the community. All work is conducted in a safe, financially sound, and high quality manner. We are committed to our customers and the environment in which we live.
Board Members
Mammoth Community Water District is a California Special District governed by a five-member Board of Directors. The Directors are elected by the registered voters of Mammoth Lakes to four-year staggered terms, with elections held in even numbered years. For more information on election procedures and deadlines, please visit the Mono County Elections page. All Directors are appointed to Board committees and are liaisons to other governmental and community boards as well as regional and national associations and organizations.
Thomas R. Smith
President
Thomas Cage
Vice President
Dennis Domaille
Director
Robert Creasy
Director
Gary Thompson
Director
Staff By Department
The MCWD Staff provides water, wastewater and recycled water services to a resident population of 8,200 and up to as many as 35,000 people during holiday periods. There are seven departments with forty three full-time employees. An additional eight to fifteen staff members are hired on seasonally to help with various construction and maintenance projects.
MCWD Facts
District Area
Acreage: 3,722 acres / 5.8 square miles
Primary Land Use: Residential, commercial
Population: 8,200 permanent residents / 33,500 persons on peak winter weekends
Governance
Date of Formation: August 5, 1957
Governing Body: A 5-member Board of Directors elected by the registered voters of Mammoth Lakes
Staff: 43 full-time employees, plus seasonal employees as needed; overseen by a General Manager
Facilities and Operation
Wastewater Treatment Plant (original): Constructed 1965 (upgraded in 1980, 1982, 1992, 2004, 2007)
Administration Building: Constructed 1971
Vehicle Maintenance Building: Constructed 1975
Groundwater Treatment Plant 1: Constructed 1988
Lake Mary Plant: Constructed 1978; (Capacity 3.1 million gallons per day)
Groundwater Treatment Plant 2: Constructed 1994
Engineering/Operations Building: Constructed 1998
Vehicle Storage Building: Constructed 2000
Recycled Water Facility: Constructed 2009
Photovoltaic Power Plant: Constructed 2010-2011 (see separate handout for more details)
Equipment Storage Building: Constructed 2016
Water Lines: 80 miles
Sewer Lines: 75 miles
Surface Water Source: Lake Mary
Groundwater Sources: 9 Production wells / 30 Monitoring wells (throughout the Mammoth Lakes Basin)
Fun Facts
Average Drinking Water Demand: 1.33 Million Gallons/Day (MGD) from October – April
Average Demand During Irrigation Season: 3-5 Million Gallons/Day (MGD) from May – September
Wastewater Flow (average): 1.14 MGD
Biggest Wastewater Flows: Occur during President’s Week in February
Changed name from Mammoth County Water District to Mammoth Community Water District: 1994