Notice of Availability of Final NPDES General Permits for Discharges at Hydroelectric Generating Facilities in the States of Massachusetts and New Hampshire and Tribal Lands in the State of Massachusetts

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The Director of the Office of Ecosystem Protection, Environmental Protection Agency-Region 1, is today providing notice of availability of the final National Pollutant Discharge Elimination System (NPDES) general permits for specific discharges at Hydroelectric Generating Facilities in the States of Massachusetts and New Hampshire and Tribal Lands located in the State of Massachusetts. These discharges include equipment related cooling water, equipment and floor drain water, backwash strainer water, certain maintenance related waters, and combinations of the preceding discharges. The general permits establish notification requirements, permit eligibility requirements, effluent limitations, standards, prohibitions and best management practice plans. Owners and/or operators of hydroelectric generating facilities with these discharges, including those facilities currently authorized to discharge under individual NPDES permits, are eligible to apply for coverage. Facilities will receive a written notification from EPA whether permit coverage and authorization to discharge under one of the general permits is approved. These general permits do not cover new sources as defined under 40 CF