Walnut Valley Water District

Formed in 1952, Walnut Valley Water District is located approximately 20 miles east of Los Angeles in the San Gbriel Valley, encompasing an area of approximately 29 square miles wtih over 27,000 service connections serving over 100,000 mulit-use customers in six communities. The District's present service area includes all of the city of Diamond Bar, portions of the cities of Industry, Pomona, Walnut and West Covina, and the easterly section of the unincorporated area of Rowland Heights.