Aquatic Toxicology Unit (ATU)
Unit Main Number 919-743-8401
Biological Laboratory Information
All toxicity analyses reported by dischargers must, by water quality regulations, be performed by a biological laboratory certified by the state of North Carolina. This certification program is operated by the Aquatic Toxicology Unit and includes laboratory inspections, data tracking and performance evaluation testing.
NC DWQ Whole Effluent Toxicity (WET) Procedures
Environmental Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621 919.743.8400