Delaware Underground Injection Wells: What you need to know

Governing Law and Regulations

Underground injection control permits: 7 Delaware Administrative Code (DE Admin Code) 7102

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Emergency permits: 7 DE Admin Code 7102.1.30

On-site wastewater treatment and disposal: 7 DE Admin Code 7201

Licenses: 7 DE Admin Code 7201.4

Site evaluations: 7 DE Admin Code 7201.5

Permit applications: 7 DE Admin Code 7201.5.4

System maintenance: 7 DE Admin Code 7201.8

Preliminary review: 7 DE Admin Code 7201.9

Regulatory Agencies

Delaware Department of Natural Resources and Environmental Control (DNREC) Division of Water Resources Ground Water Discharges Section

U.S. Environmental Protection Agency Region 3

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. DNREC has received primacy from EPA to administer the UIC program in the state under Section 1422 of the federal Safe Drinking Water Act (SDWA). For more information about other SDWA requirements, see the national section DRINKING WATER.

Delaware generally follows the federal regulations that apply to UIC, including well classification and technical specifications. See the national section UNDERGROUND INJECTION WELLS for details on well classifications.

Delaware prohibits Class II, III, and IV wells in the state. With proper application and review, Class I industrial and municipal disposal wells that inject fluids beneath the lowermost formation containing, within 1/4 mile of the well bore, an underground source of drinking water, and Class V brine injection wells, wells associated with the recovery of geothermal energy, and injection wells used in experimental technologies are permitted. Class V air conditioning return flow ...

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State Requirements

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Delaware Underground Injection Wells Resources

Underground Injection Wells Products

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