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Welcome to the Western Coalition of Arid States

Because of the uncertainty in public health requirements for COVID-19 in our members’ states, we have decided to not have a 2020 conference. We are very sorry we will not be able to see many of you in person this year to network and share thoughts on issues. Please reach out to any WESTCAS Board member if you were looking forward to the conferences to discuss or share an arid west issue. These issues can be discussed during our monthly Board meeting conference calls. Your WESTCAS Board members hope you and your family are safe and that conditions change for the better soon.

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