When the drainfield failed on a residential home outside Chapel Hill, North Carolina, the lot’s small size prevented homeowners from installing a new one. Sewer service was not available at the site, and so the owners faced the very real possibility of losing their home.
The North Carolina Department of Water Quality wanted to help the homeowners find a solution; but, to maintain public health, the DWQ had to ensure that any new system could meet local National Pollutant Discharge Elimination System standards.
Enter engineer Kevin Davidson of Agri-Waste Technology. He worked with Orenco Systems’ area sales manager Todd Harrell to devise a solution. Davidson suggested to the DWQ that the homeowners install an AdvanTex AX20-RTUV. This would provide excellent wastewater treatment through the use of a packed-bed media filter and ultraviolet disinfection, a combination that would clean the wastewater to better than secondary treatment standards.* Treated effluent from the system was expected to meet NPDES permit limits for surface discharge into a ditch or body of water, eliminating the need for a drainfield…