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

• Tank Approval Process
  • 15A NCAC 18A .1953
  • Protocol for Approval of Fiber-reinforced Precast Concrete Tanks (PDF)
• List of all Approved Tanks and Manufacturers (XLS)
• Approved Tank Fiber Manufacturers
  • Barchip (PDF)
  • Euclid Chemical Co. (PDF)
  • FiberForce 1000 HP Structural Fibers (PDF)
  • Forta Ferro (PDF)
  • Grace Strux (PDF)
  • MasterFiber MAC100 and MasterFiber MAC Matrix (PDF)
  • MaxTen Macro (PDF)
  • Sika Fibermesh 650 Structural Fibers (PDF)
  • Ultimax (PDF)