Constructed Wetland Septic

Asked October 14, 2020, 8:13 PM EDT

Hi, I would like to know, are constructed wetland septic systems approved for installation for residential homes in NC? If a constructed wetland can be created/installed, what would be the expected size of a wetland for a 3 bedroom house? I have been told recently by a soil scientist that they are not approved for installation in North Carolina, but thought I would double-check. I see there have been two approved projects in NC. One being Merchant's Pond which may have been for a State Park installation, and the other being 2 houses in the Raleigh area, EWWS-93-1R1. The projects are dated 1993/1995 and were monitored by NC State University. I am wondering if there has been any movement toward allowing the wetland application for regular residential installation? It would be nice, and the US EPA promotes it as an alternative system. Site Ref: https://ehs.ncpublichealth.com/oswp/approvedproducts.htm https://www.epa.gov/wetlands/constructed-wetlands https://www.epa.gov/septic/types-septic-systems I look forward to hearing from you. Deanna May 980-253-0874

Mecklenburg County North Carolina

1 Response

Hello. Thank you for your question. Prior constructed wetland septic system permits issued through the Onsite Water Protection section were "experimental system" permits. Generally, any system that involves surface application and discharge go through the NC Dept. of Environmental Quality for approval. Mecklenburg is in the Mooresville Regional Office area: Phone: 704-663-1699

See the "General Permits" section:
https://deq.nc.gov/about/divisions/water-resources/water-quality-permitting/npdes-wastewater/permitt...