Onsite Wastewater
Overview
Nearly 50 million people in the United States use a septic tank as the primary treatment system for household waste. A properly functioning septic system (conventionally a septic tank and subsurface trench) is one of the most efficient treatment methods available. However, the Arizona Department of Environmental Quality (ADEQ) identified onsite/septic wastewater treatment facilities as the overwhelming activity/facility contributing to water quality impairment in Arizona — over 90% of the identified activities.
Course Offerings:
-NAWT Certification Renewal Course, August 10-11
-NAWT Inspection Training, August 17-18
*Registration is not yet open for our Fall 2026 Courses:
-Soil & Site Evaluation for Onsite Wastewater Systems, October 19-21
-Advanced Soil & Site Evaluation for Onsite Wastewater Systems, October 22-23
-Introduction to Design of Onsite Wastewater Systems, November 16-17
-Advanced Design of Onsite Wastewater Systems, November 18
Resources
Materials for Inspectors
Rules, Forms, & Other Aides for Inspectors of AZ Transfer of Ownership Inspection Program
Materials for Soil & Site Evaluators
Rules, Forms, & Other Aides for Soil & Site Evaluators