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Stormwater/NPDES Permit

Updated Mar 26, 2026

National Pollutant Discharge Elimination System permit for construction sites disturbing 1+ acres. Requires Stormwater Pollution Prevention Plan (SWPPP), erosion controls, silt fencing, stabilization, and regular inspections during construction.

TAGS

stormwater NPDES SWPPP erosion environmental

DETAILS

trigger

1 acre disturbance

category

Environmental

required docs

SWPPP, NOI

jurisdiction type

State environmental agency / EPA

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