Wastewater Regulations
NOWRA
- A Homeowner's Onsite System Guide and Record Keeping Folder (PDF)
- Order copies for the homeowners you work with (PDF)
- NOWRA-Water Quality Association Joint Guidance Document on Water Softeners (PDF)
US Environmental Protection Agency (EPA)
- Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems (PDF)
- Handbook for Managing Onsite and Clustered (Decentralized) Wastewater Treatment Systems - A "how-to guide" for implementing EPA's Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems.
- It's Your Choice: A Guidebook for Local Officials on Small Community Wastewater Management Options (PDF)
- Onsite Wastewater Treatment Systems Manual (PDF)
- Design Manual: Onsite Wastewater Treatment and Disposal Systems (PDF)
- Tribal Management of Onsite Wastewater Treatment Systems
- When Is a Septic System Regulated as a Class V Well? (PDF)
- Decentralized Wastewater Treatment Systems: A Program Strategy (PDF)
- The Wastewater Information Systems Tool (TWIST)
- Advanced Onsite Technology Products Approved by State
- Handbook for Managing Onsite and Clustered (Decentralized) Wastewater Treatment Systems
National Environmental Services Center (NESC)
- Assessment of U.S. Onsite System Installations, 2015 through 2018
- Basic Water and Wastewater Formulas (PDF)
Water Environment Research Foundation (WERF)
- Influent Constituent Characteristics of the Modern Waste Stream from Single Sources
- State of the Science: Review of Quantitative Tools to Determine Wastewater Soil Treatment Unit Performance
- Factors Affecting the Performance of Primary Treatment in Decentralized Wastewater Systems
- Micro-Scale Evaluation of Phosphorus Management: Alternative Wastewater Systems Evaluation
- Update of the Advanced On-Site Wastewater Treatment and Management Market Study
- A Status of Tools and Support for Community Decentralized Wastewater Solutions
- Variability and Reliability of Test Center and Field Data: Definition of Proven Technology From a Regulatory Viewpoint
- Guidance for Establishing Successful Responsible Management Entities
- Integrated Risk Assessment for Individual Onsite Wastewater Systems
- Onsite Wastewater Regulator Outreach and Coordination Project
- Onsite Sewage Treatment in California and the Progression Toward Statewide Standards
- Model Decentralized Wastewater Practitioner Curriculum
State Onsite Regulators Alliance (SORA)
- SORA offers a variety of data which compiles responses to surveys conducted via SORA's member listserve. Below are some of the items for which they have data
- States that requires CEU's for installer licensure 2020 (Excel)
- Residential flow est. by state 2020 (Excel)
- Soil Survey vs. Site Evaluation (Excel)
- Transfer of Title Programs (Excel)
- Transfer of Title O&M Reqs. and Guidance (Excel)
- Tiny Homes Gallon Per Day (PDF)
- State by State Design Flow (Excel )
- Max Daily Flow Allowed Under State Regulation (PDF)
- Medical Marijuana Wastewater (PDF )
- Length of gravity trenches by state (PDF)
- Large Systems (PDF)
- Cost of soil evaluation (PDF )
- Decentralized/Onsite Wastewater Projects and Programs (PDF)
Water Quality Research Foundation
- Changes in Septic Tank Effluent Due to Water Softener Use (Report) (PDF)
- NOWRA statement to SORA regarding official position on WQRF report