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Delaware Septic Records & Permits

Search septic permits, as-built drawings and pumping reports filed with county environmental health departments across Delaware. Each record links to the county’s official document.

State agency: Delaware Department of Natural Resources and Environmental Control (DNREC) - Groundwater Discharges Section Governing rule: 7 DE Admin. Code 7101 (On-Site Wastewater Treatment & Disposal)
3 Counties in Delaware
3 With instant permit search
100 ft Required well setback
113,146 Verified permits online

Select a county in Delaware

3 with instant search • All counties indexed
County Access Type Action
Kent County LIVE DATABASE
DNREC Division of Water / Kent County Inspections & Enforcement
Instant Search (31,584)
Search Permits
New Castle County LIVE DATABASE
DNREC Division of Water / New Castle County Department of Land Use
Instant Search (15,105)
Search Permits
Sussex County LIVE DATABASE
DNREC Division of Water / Sussex County Engineering Department
Instant Search (66,457)
Search Permits

Delaware Septic Rules & Setback Standards

All subsurface sewage disposal systems in Delaware are governed by 7 DE Admin. Code 7101 (On-Site Wastewater Treatment & Disposal). Authorized systems must maintain strict minimum horizontal clearance:

Private Drinking Well
100 feet min.
Property Line
10 feet min.
House Foundation
10 feet min.
Water Body / Stream
100 feet min.