Notice of Availability of Final NPDES General Permits MAG07000 and NHG07000 for Discharges From Dewatering Activities in the Commonwealth of Massachusetts (Including Both Commonwealth and Indian Country Lands) and the State of New Hampshire: the Dewatering General Permit (DGP)

Samenvatting

The Director of the Office of Ecosystem Protection, EPA-New England, is providing a notice of availability of the final National Pollutant Discharge Elimination System (NPDES) general permits for dewatering activity discharges to certain waters of the Commonwealth of Massachusetts (including both Commonwealth and Indian country lands) and the State of New Hampshire. These General Permits replace the Construction Dewatering General Permits, which expired on September 23, 2007. The notice of availability of the draft NPDES general permits for dewatering activity discharges was published in the Federal Register on July 21, 2008 and the public notice period ran from July 22, 2008 to August 21, 2008. In addition to comments on the draft general permits, EPA also requested comments on the cost associated with a limit for total residual chlorine (TRC) for discharges containing potable water. No comments were received during the public notice period regarding either the draft permits or the cost associated with a TRC limit for discharges containing potable water. The final General Permits establish Notice of Intent (NOI) requirements, effluent limitations, standards, prohibitions, and mana