The current CGP will EXPIRE March 31, 2026.

More information coming soon on how to reapply for permit coverage- stay tuned!

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What is the Construction General Permit (CGP)?

The Construction General Permit (CGP) allows for the discharge of stormwater associated with land-disturbance activities when appropriate measures are put in place to reduce the effects of erosion in stormwater runoff and preserve water quality in the State of Alabama.

Construction activity, for the purpose of the CGP, is defined as the disruption of soils associated with clearing, grading, excavating, filling of land, or other similar activities which may result in soil erosion. Stormwater runoff from these construction activities can pick up sediment and debris which can then be discharged into waters of the State, leading to turbidity, siltation, and sedimentation which may affect water quality.

Construction site operators / owners seeking coverage under this general permit must submit a Notice of Intent (NOI) in accordance with the permit requirements.

Operators / owners of all regulated construction sites must implement and maintain effective erosion and sediment controls in accordance with a Construction Best Management Practices Plan (CBMPP) prepared and certified by a Qualified Credentialed Professional (QCP).

About NPDES

The National Pollution Discharge Elimination System (NPDES) program addresses water pollution by regulating point sources that discharge pollutants to waters of the United States.

The Clean Water Act and Federal regulations require construction site operators to obtain NPDES permit coverage for regulated land disturbances and associated discharges of stormwater runoff to State waters.

Effective April 1, 2011, ADEM established the General NPDES Permit No. ALR100000 for discharges associated with regulated construction activity that will result in land disturbance equal to or greater than one acre or from construction activities involving less than one acre and which are part of a common plan of development or sale equal to or greater than one acre.