These materials provide key information for our On-Site Wastewater Treatment certification courses. They are useful to review before attending a class or renewing your certification and will help you prepare for course content and requirements.
Level 1: Site and Soil Evaluation Techniques and Percolation Test Training for On-Site Wastewater Treatment
- Level 1 Agenda and Topics Covered (PDF)
- Field Sheet Packet (PDF)
- Flow Chart for Soil Texturing and USDA Soil Textural Triangle (2022) (PPTX)
Percolation Test
Soil Characterization
Soil Layers
Level 2: Design, Operation, Maintenance and Inspection of Conventional On-Site Wastewater Treatment Systems
- Conventional Absorption System Design Worksheet (PDF)
- Graywater Tier 1 Branched Drain System Design Worksheet (PDF)
- Gray Water Tier 1 or Tier 2 Subsurface Irrigation System Design Worksheet (PDF)
Percolation Test
Level 3: Design, Operation, Maintenance and Inspection of Alternative On-Site Wastewater Treatment Systems
- At-Grade Absorption System Design Worksheet (PDF)
- Wisconsin Mound Design Manual (PDF)
- Mound System Design Worksheet (PDF)
- Sand Lined Trench Worksheet (PDF)
- Utah Guidance for Performance, Application, Design, Operation and Maintenance Pressure Distribution Systems, Revised Draft, May 2024 (PDF)
- Pressure Design Worksheet Nov 2023 (PDF)
- Gray Water Tier 1 or Tier 2 Subsurface Irrigation System Design Worksheet (PDF)
- Graywater Tier 2 Drip Irrigation System Design Worksheet (PDF)
- Graywater Tier 1 Branched Drain System Design Worksheet (PDF)
Demonstration Site
Utah Regulations for On-Site Wastewater Systems and Overview of Utah Onsite Wastewater Program
- Utah Administrative Code R317-4. Onsite Wastewater Systems (PDF)
- Utah Administrative Code R317-5. Large Underground Wastewater Disposal (LUWD) Systems (PDF)
- Utah Administrative Code R317-11. Certification Required to Design, Inspect and Maintain Underground Wastewater Disposal Systems, or Conduct Soil Evaluations or Percolation Tests for Underground Wastewater Disposal Systems (PDF)
- Administrative Code R317-401. Graywater Systems (PDF)
- Administrative Code R317-550. Rules for Liquid Waste Operations (PDF)
- Utah Administrative Code. R317-560. Rules for the Design, Construction, and Maintenance of Vault Privies and Earthen Pit Privies (PDF)
- Underground Injection Control (UIC) System
- Administrative Code. R317-7. Underground Injection Control (UIC) Program (PDF)
- Compliance-assistance-utah-underground-injection-control-uic-program
- Compliance-assistance-utah-underground-injection-control-uic-program
- Large-Capacity Cesspools, Utah Underground Injection Control (UIC) Program
- Motor Vehicle Waste Disposal Wells (MVWDs) -Utah Underground Injection Control (UIC) Program
- Inventory Information Forms for UIC-Regulated Large Underground Wastewater Disposal Systems (LUWDS)— >5000 gallons per day (PDF)
- Overview of Utah Onsite Wastewater Program, Utah Division of Water Quality (PDF)
Source Water Protection Program
State of Utah Department of Environmental Quality Certification
In 2001 the Utah Legislature passed a bill establishing a requirement that persons who design, inspect, or maintain underground wastewater disposal systems (also referred to as septic or on-site wastewater treatment systems), and/or conduct percolation tests or soil evaluations for these systems, must be certified by the State of Utah.
Certification requires completion of training and examination by the Utah On-Site Wastewater Treatment Training Program through Utah State University, followed by application to the Division of Water Quality.
Contact the Division of Water Quality's certification program at (801) 536-4344 or at wwopcert@utah.gov (PDF) for further information on state certification.
List of Utah Certified On-Site System Professionals (PDF) External Link Icon