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Welcome to the Western Coalition of Arid States


WESTCAS 2020 Annual Conference - September 14-16 - Island Palms Hotel and Marina, San Diego, CA

WESTCAS President, Steve Bigley, is on the cover of and featured in the August, 2018 edition of Municipal Sewer & Water. Click here to view this article and learn more about what Steve and his associates at Coachella Valley Water District are doing to "Elevate the District"

WESTCAS is an organization of water and wastewater service providers who advocate for water resources in the arid southwest. We are active in both legislative and regulatory arenas on water-related issues that disproportionately impact our members. We seek to raise awareness of the unique character of arid regions and thereby prompt provisions in proposed legislation and rulemaking that are protective of water resources. Our collective voice has been effective in a wide array of water issues, notably whole effluent testing, arsenic drinking water standards, definition of waters of the US, drought response, floodplains, and quagga mussels.

We are a member-driven organization. Our membership meets throughout the year to share concerns and issues and decide how to approach making our voice heard on those issues. The goal of our legislative and regulatory committees is to identify the issues of concern to our members and recommend actions. We welcome new voices – consider adding yours! See our membership information or contact us directly at