West Valley Sanitation District provides wastewater collection, transport, and disposal services for the cities of Campbell, Los Gatos, Monte Sereno, two-thirds of Saratoga, and intervening unincorporated areas of Santa Clara County, CA; a combined population of over 109,000. The District wastewater collection system consists of approximately 615 miles of sanitary sewers (415 miles of force main, branch, gravity main, and trunk sewers ranging in size from 3 to 39-inches; and 200 miles of lower sewer laterals), including three pump stations, within approximately 28 square miles.