OFFICIAL SITE OF THE STATE OF NEW JERSEYSeptic Systems
Individual subsurface sewage disposal systems (i.e. septic systems), which are low volume residential or commercial (2,000 gallons per day or less) onsite wastewater treatment and disposal systems, are regulated under the Standards for Individual Subsurface Sewage Disposal Systems (N.J.A.C. 7:9A) and fall under the jurisdiction of the local administrative authorities (i.e. health departments). The ground water unit within the Division’s Bureau of Ground Water, Residuals, and Permit Administration provides guidance to the health departments on the implementation of the Standards and issues treatment works approvals (TWA) for system designs that cannot conform with the applicable standards.
N.J.A.C. 7:9A – Standards for Individual Subsurface Sewage Disposal Systems
- Frequently Asked Questions on N.J.A.C. 7:9A
- 2021 Amendment Adoption Summary: The Department adopted an amendment to the Standards for Individual Subsurface Sewage Disposal Systems (N.J.A.C. 7:9A) to remove the requirement that an authorized installer of advanced wastewater pretreatment devices, products in lieu of laterals and/or filter material, and drip dispersal technologies possess a National Environmental Health Association (NEHA) Certified Installer of Onsite Wastewater Treatment Systems (CIOWTS) Advanced Level certification. The amended rule was adopted on July 06, 2021.
- 2012 Amendment Adoption Summary: Amendments to the rule were adopted and appeared in the April 2, 2012 New Jersey Register. Included below is additional information regarding the 2012 Rule Amendments.