The Connecticut Department of Energy and Environmental Protection (CT DEEP) has reissued the General Permit for the Discharge of Dewatering and Remediation Wastewaters (D2R GP) effective March 1, 2026. This follows the reissuance of the General Pretreatment Permit for Significant Industrial User, Dewatering, and Remediation Discharges (SIU GP) that went into effect December 1, 2025.
Both permits cover dewatering and remediation activities. However, permittees should be advised of one…