Region 1 Final Hydroelectric Generating Facilities General Permit for Facilities in Massachusetts and New Hampshire
EPA Region 1 is issuing the Final National Pollutant Discharge Elimination System (NPDES) Hydroelectric Generating Facilities General Permit (HYDROGP) for eligible facilities in the Commonwealth of Massachusetts (MAG360000) and the State of New Hampshire (NHG360000). This Final HYDROGP establishes effluent limitations and requirements, effluent and ambient monitoring requirements, reporting requirements, and standard conditions for discharges of equipment cooling water, equipment and floor drain water, equipment backwash water, certain maintenance related waters and backwash strainer water.
Dates
Permit Issuance Date: February 14, 2023
Permit Effective Date: April 15, 2023
Operators seeking authorization to discharge must submit a complete and accurate Notice of Intent (NOI) in accordance with Appendix 4 as follows:
- Operators that are covered under the 2009 HYDROGP must submit a NOI within sixty (60) days of the effective date of this general permit, or by June 14, 2023.
- Operators of new discharges must submit a NOI at least thirty (30) days prior to the commencement of discharges, or as soon as practicable.
Final Permit Documents
- Final NPDES General Permits for Hydroelectric Generating Facilities, MAG360000 and NHG360000 (pdf)
- Response to Comments (pdf)
- Draft General Permit for Hydroelectric Generating Facilities in Massachusetts & New Hampshire
- Appendix 4 - Suggested Notice of Intent (NOI) Format and Instructions - Fillable Electronic Format (pdf)
- Appendix 5 - Notice of Termination (NOT) Instructions and Suggested Format - Fillable Electronic Format (pdf)
- Appendix 8 - Notice of Change (NOC) Instructions and Suggested Format - Fillable Electronic Format (pdf)
EPA Contacts
Technical Contacts
George Papadopoulos (papadopoulos.george@epa.gov), 617-918-1579
Administrative Contacts
Glenda Velez (velez.glenda@epa.gov), 617-918-1677
State Contacts
MassDEP
Jennifer Wood (Jennifer.Wood@state.ma.us), 617-835-9886
NH DES
Hayley Franz (Hayley.Franz@des.nh.gov), 603-271-0671
Notices of Intent
Notices of Intent (NOI) will be posted on this page after EPA receipt for a minimum of 30 days. Following this period, EPA will either grant authorization, request additional information, or deny authorization under this permit and require submission of an application for an individual NPDES permit. A facility will be authorized to discharge under the terms and conditions of this permit upon receipt of the written notice of authorization from EPA.
Please contact Glenda Velez if you have any questions regarding NOIs. See the table below for a chronological listing of NOIs. Older NOIs are listed in the Hydro NOI archive.
| City / Town | State | Name of Facility | Permit Number | Date Posted |
|---|---|---|---|---|
| Lowell | MA | Lowell Hydro Station (pdf) | MAG360024 | 10/10/2023 |
| Lowell | MA | John Street Power Station (pdf) | MAG360025 | 10/10/2023 |
| Lowell | MA | Hamilton Power Station (pdf) | MAG360026 | 10/10/2023 |
| Lowell | MA | Section 8 Power Station (pdf) | MAG360027 | 10/10/2023 |
| Buckland | MA | Gardner Falls Hydro (pdf) | MAG360018 | 07/17/2023 |
| Chicopee | MA | Dwight Hydro (pdf) | MAG360019 | 07/17/2023 |
| Indian Orchard | MA | Indian Orchard Hydro (pdf) | MAG360020 | 07/17/2023 |
| Ludlow | MA | Putts Bridge Hydro (pdf) | MAG360022 | 07/17/2023 |
| Wilbraham | MA | Red Bridge Hydro (pdf) | MAG360021 | 07/17/2023 |
| Hopkinton | NH | Hoague Sprague Hydro (pdf) | NHG360031 | 07/17/2023 |
| Manchester | NH | Kelleys Falls Hydro (pdf) | NHG360029 | 07/17/2023 |
| Rollinsford | NH | Rollinsford Hydro (pdf) | NHG360030 | 07/17/2023 |
| Somersworth | NH | Lower Great Falls Hydro (pdf) | NHG360028 | 07/17/2023 |
| West Lebanon | NH | Mascoma Hydro (pdf) | NHG360024 | 07/17/2023 |
| Holyoke | MA | Boatlock Station (pdf) | MAG360004 | 07/11/2023 |
| Holyoke | MA | Chemical Station (pdf) | MAG360005 | 07/11/2023 |
| Holyoke | MA | Cobble Mountain Station (pdf) | MAG360003 | 07/11/2023 |
| Holyoke | MA | Hadley Falls Station (pdf) | MAG360006 | 07/11/2023 |
| Holyoke | MA | Riverside Station (pdf) ) | MAG360007 | 07/11/2023 |
| Montague | MA | Cabot Station (pdf) | MAG360008 | 07/11/2023 |
| Montague | MA | Turners Falls Station (pdf) | MAG360010 | 07/11/2023 |
| Northfield | MA | Northfield Mountain Station (pdf) | MAG360009 | 07/11/2023 |
| Russell | MA | Crescent (Texon) Station (pdf) | MAG260029 | 07/11/2023 |
| Stockbridge | MA | Glendale Station (pdf) | MAG360028 | 07/11/2023 |
| Franklin | NH | Franklin Power (pdf) | NHG360023 | 06/29/2023 |
| Bristol | NH | Newfound Hydro (pdf) | NHG360034 | 06/29/2023 |
| Tilton | NH | Clement Hydro (pdf) | NHG360023 | 06/29/2023 |
| Suncook | NH | Pembroke Hydro (pdf) | NHG360022 | 06/29/2023 |
| Rowe | MA | Sherman Station (pdf) | MAG360013 | 06/29/2023 |
| Florida | MA | Deerfield #5 Station (pdf) | MAG360017 | 06/29/2023 |
| Buckland | MA | Deerfield #4 Station (pdf) | MAG360016 | 06/29/2023 |
| Buckland | MA | Deerfield #3 Station (pdf) | MAG360015 | 06/29/2023 |
| Conway | MA | Deerfield #2 Station (pdf) | MAG360014 | 06/29/2023 |
| Littleton | MA | Moore Station (pdf) | NHG360004 | 06/29/2023 |
| Monroe | NH | Comerford Station (pdf) | NHG360003 | 06/29/2023 |
| Monroe | NH | McIndoes Station (pdf) | NHG360005 | 06/29/2023 |
| Clinton | MA | Cosgrove Intake Facility (pdf) | MAG360001 | 06/21/2023 |
| Florida | MA | Bear Swamp Hydro (pdf) | MAG360012 | 06/21/2023 |
| Florida | MA | Fife Brook Hydro (pdf) | MAG360011 | 06/21/2023 |
| West Boylston | MA | Oakdale Power Station (pdf) | MAG360002 | 06/21/2023 |
| Bennington | NH | Pierce Station (pdf) | NHG360001 | 06/21/2023 |
| Bennington | NH | Monadnock Station (pdf) | NHG360002 | 06/21/2023 |
| Berlin | NH | Cross Hydro (pdf) | NHG360009 | 06/21/2023 |
| Berlin | NH | Riverside Hydro (pdf) | NHG360008 | 06/21/2023 |
| Berlin | NH | Sawmill Hydro (pdf) | NHG360007 | 06/21/2023 |
| Errol | NH | Errol Hydro (pdf) | NHG360016 | 06/21/2023 |
| Dumme | NH | Pontook Hydro (pdf) | NHG360006 | 06/21/2023 |
| Gorham | NH | Cascade Hydro (pdf) | NHG360010 | 06/21/2023 |
| Gorham | NH | Gorham Hydro (pdf) | NHG360011 | 06/21/2023 |
| Shelburne | NH | Shelburne Hydro (pdf) | NHG360012 | 06/21/2023 |
| Lawrence | MA | Lawrence Hydroelectric Project (pdf) ) | MAG360023 | 06/08/2023 |
| Lowell | MA | Lowell Hydroelectric Project (pdf) | MAG360024 | 06/08/2023 |
| Berlin | NH | Smith Hydroelectric Station (pdf) | NHG360033 | 06/08/2023 |
| Bristol | NH | Ayers Island Hydroelectric Station (pdf) | NHG360019 | 06/08/2023 |
| Bow | NH | Garvins Falls Hydroelectric Station (pdf) | NHG360014 | 06/08/2023 |
| Claremont | NH | Lower Valley Hydroelectric Project (pdf) | NHG360025 | 06/08/2023 |
| Claremont | NH | Sweetwater Hydroelectric Project (pdf) | NHG360026 | 06/08/2023 |
| Franklin | NH | Eastham Falls Hydroelectric Station (pdf) | NHG360018 | 06/08/2023 |
| Gorham | NH | Gorham Hydroelectric Station (pdf) | NHG360013 | 06/08/2023 |
| Hooksett | NH | Hooksett Hydroelectric Station (pdf) | NHG360015 | 06/08/2023 |
| Hillsboro | NH | Jackman Hydroelectric Station (pdf) | NHG360032 | 06/08/2023 |
| Manchester | NH | Amoskeag Hydroelectric Station (pdf) | NHG360017 | 06/08/2023 |