Providing reliable drinking water to our customers on a daily basis is fundamental to what we do. Western works to secure you ... r water supply for the future as well as today. It takes engineering, infrastructure, responsible management and strategic governance to ensure the roughly 35 billion gallons of water we provide to nearly 1 million people in western Riverside County is safe, reliable and the highest quality 365 days a year. Western Municipal Water District (Western) was formed in 1954, and today provides reliable water and wastewater services to retail customers and wholesale agencies from Corona to Temecula. As a member agency of Metropolitan Water District of Southern California, the state’s largest water supplier, Western receives most of its water from the Sacramento-San Joaquin Bay-Delta and from the Colorado River. Western supplies water on both a wholesale (eight agencies) and a retail basis (23,000 connections) to a region stretching 527-square miles in western Riverside County with an assessed valuation of $83 billion, and a population of nearly 1 million people. This regional area includes the cities of Corona, Norco and Riverside and the water agencies serving Box Springs, Eagle Valley, Lake Elsinore, Lee Lake and Temecula. We are governed by a five-person Board of Directors, elected to four-year terms by registered voters in the five election divisions. Western is securing your water supply for today and tomorrow. read more