Contractors
Licensed installer and pumper lists, and the handbook every onsite wastewater installation is built to.
Licensed installers and pumpers
Current lists of installers and pumpers licensed through NWLEPG.
Contractor’s handbook for onsite wastewater systems
- Environmental / Sanitary Code PDF, 12 pages, 232 KB
- Administrative Procedures for Private Wastewater Systems PDF, 6 pages, 332 KB
- Construction Guidelines: Requirements for Septic Tanks PDF, 7 pages, 682 KB
- Construction Guidelines: Soil Requirements PDF, 3 pages, 622 KB
- Construction Guidelines: Design Criteria for Soil Absorption Systems & Requirements for Wastewater Stabilization Ponds PDF, 9 pages, 939 KB
- Appendix of Tables, Forms, and References PDF, 7 pages, 1.0 MB
- Appendix of Tables, Forms, and References (continued) PDF, 7 pages, 243 KB
Water well contractors
Previous lists
Older lists kept for reference. Use the current lists above.