Contractors
Contractors and tank cleaners
Current lists of installers and pumpers licensed through NWLEPG, and the handbook every onsite wastewater installation is built to.
Licensed through NWLEPG
Contractor’s handbook for onsite wastewater systems
- CodeEnvironmental / Sanitary CodePDF, 12 pages, 226 KB
- ProceduresAdministrative Procedures for Private Wastewater SystemsPDF, 6 pages, 324 KB
- GuidelinesConstruction Guidelines: Requirements for Septic TanksPDF, 7 pages, 666 KB
- GuidelinesConstruction Guidelines: Soil RequirementsPDF, 3 pages, 607 KB
- Design criteriaConstruction Guidelines: Design Criteria for Soil Absorption Systems & Requirements for Wastewater Stabilization PondsPDF, 9 pages, 917 KB
- AppendixAppendix of Tables, Forms, and ReferencesPDF, 7 pages, 1012 KB
- AppendixAppendix of Tables, Forms, and References (continued)PDF, 7 pages, 237 KB
Previous lists
Kept for reference. Use the current lists above.