Tri-State Seminar

Since 1985, the Tri-State Seminar, LLC (TSS) has been providing affordable, high-quality education to water and wastewater professionals from the western United States through our annual three-day seminar. The seminar is designed to provide continuing education, professional development, and technology transfer to support the mission and vision of our Member Associations; AZ Water Association (AZ Water), California Water Environment Association (CWEA), and the Nevada Water Environment Association (NWEA).