The U. S. EPA and EPA Region 1 have issued the Final National Pollutant Discharge Elimination System (NPDES) general permits for discharges of pollutants to Waters of the U. S. in waste waters from certain dewatering and remediation-related activities. This Dewatering and Remediation General Permit (DRGP) covers discharges to certain waters in the Commonwealth of Massachusetts and the State of New Hampshire, sites in Connecticut and Rhode Island located on Indian Country lands, and federal facilities in Vermont.

This DRGP is a combined reissuance of the Remediation General Permit (RGP) that became effective on April 8, 2017, and expired on April 8, 2022, and the Dewatering General Permit (DGP) that became effective on April 25, 2015, and expired on April 7, 2022. The new general permit combines the former Discharge General Permit (DGP) for non-remediation construction projects with the Remediation General Permit (RGP). The DRGP authorizes discharges of groundwater, surface water, potable water, and storm water associated with following activities: site remediation, site dewatering, infrastructure dewatering and remediation activities, and material dewatering.

By: Isaac Anderson, Project Manager, Cooperstown Environmental and LSPA Technical Practices Committee Member

Many of you know that the 2010 Remediation General Permit (RGP), issued by the United States Environmental Protection Agency, Region 1 (EPA) under the National Pollutant Discharge Elimination System (NPDES), expired in September 2015. As noted in the LSPA email blast sent on September 15, 2016, the Draft RGP was published in the Federal Register on August 18, 2016, and EPA accepted public comments until September 19, 2016. What many of you are left wondering is, what happens next, and what should you do in the interim if you have a project that requires coverage under the RGP before the new RGP is available?