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NPDES Stormwater Program
The National Pollutant Discharge Elimination System (NPDES) stormwater permitting program regulates three types of activities: (1) Industrial activities that fall in 10 categories; (2) Municipal Separate Storm Sewer Systems ("MS4s"); and (3) Construction activities that disturb an acre or more.
Draft General Permits NCG210000 is available for public comment until July 17, 2013. Please check our Public Notice Events Calendar.
Looking for the No Exposure Self Re-Certification Information? Click the No Exposure tab below.
In 1972, the National Pollutant Discharge Elimination System (NPDES) program was established under authority of the federal Clean Water Act and delegated to the Division of Water Quality for implementation in North Carolina. Phase I of the NPDES stormwater program was established in 1990. It focused on site and operations planning to reduce pollutant sources. Phase I covered industrial activities in 10 categories, construction activities that disturbed five or more acres, and municipalities with populations of 100,000 or more that owned or operated a municipal separate storm sewer system (MS4) (North Carolina had six). Phase II of the program expanded permit requirements to construction disturbing an acre or more and smaller communities (< 100,000 population) and public entities that own or operate an MS4. Phase II also expanded the option of the No Exposure Exclusion beyond the 'Light Industry' category.
See the table below for various NPDES stormwater program application and other forms:
NPDES Stormwater General Permits
North Carolina has several different General Permits that cover stormwater discharges associated with industrial activities and construction (please note that some documents are not yet available in other formats but will be added):
Below are various monitoring forms:
Facilities with stormwater discharges "associated with industrial activity" may be excluded from permit coverage if industrial materials and operations are not exposed to stormwater. The facility must maintain this condition of no exposure to qualify for the permitting exclusion. If the condition changes, the facility must seek permit coverage for industrial stormwater discharge under a general or individual permit. Effective August 2010, the facility is responsible for self re-certifying annually that the no exposure condition is being maintained.
The no exposure exemption is not available for construction activities covered under the NPDES stormwater program. See the following links for more detailed information on No Exposure:
EPA's SPPP templates and resources for the Multi-Sector General Permit (note the MSGP requirements differ from North Carolina NPDES permits, and permittees may need to modify the SPPP template accordingly.)