N.C. Gen. Stat. § 130A-302

Sludges generated by the treatment of wastewater discharges which are point sources subject to permits granted under Section 402 of the Federal Water Pollution Control Act, as amended (P.L. 92-500), or permits generated under G.S. 143-215.1 by the Commission shall not be deposited in or on a sanitary landfill permitted under this Article unless in a compliance with the rules concerning solid waste adopted under this Article.