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Welcome to the Western Coalition of Arid States


Mark your calendars for these future WESTCAS Events!

October 26-28, 2016

WESTCAS Fall Conference

Crowne Plaza Phoenix Airport Hotel

Phoenix, AZ

Click here for agenda and registration information

WESTCAS Annual Conference - June 21-23, 2017

Island Palms Hotel & Marina - San Diego, CA

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

Click here to read about WESTCAS in an interview with the WESTCAS President, Kelly Collins, in the January, 2016, Municipal Water Leader