Delaware Groundwater: What you need to know

Control of Water Pollution Regulations: 7 Delaware Administrative Code (DE Admin Code) 7201

Water allocation: 7 DE Admin Code 7303

Well construction: 7 DE Admin Code 7301

Licensing of water well contractors, drillers, and pump installers: 7 DE Admin Code 7302

Hazardous waste facility groundwater monitoring: 7 DE Admin Code 1302.264.91

Delaware Department of Natural Resources and Environmental Control (DNREC) Division of Water Resources (DWR) Water Supply Section

DNREC DWR Ground Water Discharges Section (GWDS)

U.S. Environmental Protection Agency (EPA) Region 3

See national section for basic information and federal regulations.

• Rules. Delaware is fully authorized to administer the National Pollutant Discharge Elimination System (NPDES) permit program and to issue individual and general permits. Delaware rules are more stringent because a NPDES permit is required to discharge any pollutant from a point source to both surface waters and groundwater. See the state section NPDES for further information.

Delaware also protects groundwater resources through the state's underground storage tank (UST) regulations. The Delaware Department of Natural Resources and Environmental Control (DNREC) reserves the right to require secondary containment or equivalent protection for UST system installations where aquifers underlying the UST facility need such protection, where groundwater below the UST facility is within a wellhead protection area, or where groundwater is susceptible to contamination in order to protect the safety, health, welfare, and/or environment of the state. See the state section UNDERGROUND STORAGE TANKS for more information.

DNREC's Water ...