Delaware Department of Natural Resources and Environmental Control (DNREC) Division of Water Resources (DWR)
U.S. Environmental Protection Agency (EPA) Region 3
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Delaware is authorized by EPA to administer the federal National Pollutant Discharge Elimination System (NPDES) permit program that regulates the discharge of pollutants to surface water. NPDES is the national program for issuing, modifying, revoking and reissuing, terminating, monitoring and enforcing permits, and imposing and enforcing pretreatment requirements, under the Clean Water Act (CWA). See the state section NPDES PERMIT for more information.
Delaware is also authorized to administer the federal pretreatment program in the state, and has adopted the federal pretreatment regulations for industrial users who discharge their waste into publicly owned treatment works (POTW). See the national section PRETREATMENT STANDARDS for information.
The state defines a POTW as any device and/or system used in conveyance, storage, treatment, disposal, recycling, and reclamation of municipal sewage or industrial wastes of a liquid nature, which systems are under the jurisdiction of a city, town, county, district, or other public body.
• Administration and enforcement. DNREC's DWR is responsible for the administration and enforcement of the NPDES permit program in Delaware that includes pretreatment requirements.