Pretreatment

The Federal and State Pretreatment Program gives regulatory authority for EPA, states, and municipal governments to control the discharge of industrial wastewater into municipal Wastewater Treatment Plants (WWTPs) or Publicly Owned Treatment Works (POTWs). The objectives of the Pretreatment Program are to prevent pass-through, interference, or other adverse impacts to the POTW, its workers or the environment; to promote the beneficial reuse of biosolids; and to assure that all categorical pretreatment standards are met. There are approximately 620 Significant Industrial Users (SIUs) who discharge industrial wastewater to more than 130 POTWs throughout the State of North Carolina.

The Pretreatment, Emergency Response and Collection Systems (PERCS) pretreatment staff periodically present the following workshops as a service to assist POTWs and their consultants.

Pretreatment Annual Report Workshops
Headworks Analysis Workshops
Permit Writing Workshops

See the Training Page for details, including links to EPA training opportunities.

Sewer Use Ordinance (SUO)

This Model SUO includes many revisions to address the 2011 revisions to NCAC 15A 02H .0900 - Local Pretreatment Programs.

State Pretreatment Regulations

The Rules are final and effective as of April 1, 2011.

Pretreatment Rules: 15A NCAC 2H .0900 effective 2011
Copy of the Rule effective April 1, 2011, with changes underlined and explanation boxes for all changes from those first proposed back in August 2009 through those made in March 2011 to address concerns of the State Rules Review Commission (RRC).
Final Hearing Officers Report - December 2010
Fiscal Note - May 2010

Federal Regulations

General pretreatment regulations: 40 CFR 403 (July 2012)
Categorical Pretreatment Regulations: 40 CFRs 400-471
October 14, 2005, Streamlining of the Federal Pretreatment Pretreatment Regulations -
See the Other Downloads Webpage for more information.

Municipal Pretreatment Contacts in North Carolina

NC Pretreatment Program Staff contacts (Dec 2016)