Excavation Dewatering General Permit
On August 22, 2019 DEC issued the general permit for (AKG002000) Excavation Dewatering, effective October 1, 2019 and expired September 30, 2024. This permit has been administratively extended until a new version is issued, expected in summer 2025. Once the new version is issued permittees will have 120 days to file for coverage under the new permit.
Dewatering discharges eligible for coverage under this general permit consist of water pumped from excavation areas through the use of temporary dewatering wells or submersible pumps to lower the water table to support a construction activity. The dewatering of accumulated groundwater and stormwater that accumulates within an excavation area is an authorized discharge under the permit. The permit provides discharge authorization for dewatering conducted within 1,500 feet of a permit defined “DEC-identified contaminated site” although special permit conditions apply, and additional requirements may be added in the discharge authorization.
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