Our History

Since 1985, Tri-State Seminar LLC (TSS) has been providing affordable, high quality education to water and wastewater operators from the Western United States through our annual three-day seminar designed to provide professional development, continuing education, and technology transfer to support the vision and missions of our partner organizations; AZ Water Association, California Water Environment Association and the Nevada Water Environment Association.


In 2021, we managed to host a successful scaled-back event (even with our masks on ) with over 2,800 attendees. In 2019 more than 3,300 attendees joined us from 20 states and 3 countries to attend over a dozen workshops, three different tours, over 200 classes and to visit and learn from over 300 exhibitors. We strive to give you and your employer the very most Bang for your Buck! We provide up to 21 contact hours to our attendees over the 3 days and with a registration fee of $99, that means you and your employer reap the rewards of your continued training at less than $4.75 per hour! Where else can you find high quality training this affordable?