Tanks and Appurtenances
All prefabricated tanks used in North Carolina (septic, grease, pump, dosing, siphon, recirculation) for on-site wastewater treatment systems and the appurtenances used with the tanks (effluent filters, risers, and pipe penetration seals) must be approved by the On-Site Water Protection Branch. Designs for these products are submitted to the state and reviewed and approved by Branch engineers.
Contact: Tricia Angoli, 919-707-5878
- List of all Approved Tanks and Manufacturers (XLS)
- Approved Tank Fiber Manufacturers
Effluent Filters
Plastic and Fiberglass Tanks
- Infiltrator Systems (PDF) - 3/5/2024
- Norwesco
- Roth Global Plastics (PDF) - 5/30/08
- Snyder Industries Inc.
- "Dominator" (PDF) - 3/02/09
- "Low Rise" (PDF) - 1/10/07
- AK Industries (PDF)
- Valencia Pipe Company (PDF) - Updated 3/10/25
Risers and Lids
Septic/Pump Tank Pipe Penetration Seals
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