Dewatering General Permit (DGP) for Massachusetts & New Hampshire
Alert: The Dewatering General Permit expired on May 20, 2020 and will not be reissued. All dewatering activities must submit an NOI for coverage under the 2022 Dewatering and Remediation General Permit (DRGP).
Existing discharges covered under the DGP that expired on May 20, 2020 that have been administratively continued must reapply no later than 90 days following the DRGP effective date. All DGP permits will automatically be terminated as of March 31, 2023.
2015 Final Dewatering General Permit (DGP)
The Notice of Availability of the Final NPDES General Permit for Dewatering Activity Discharges in Massachusetts (MAG070000) and New Hampshire (NHG070000) was published in the Federal Register on April 20, 2015.
Permit Expiration Date: May 20, 2020
This General Permit replaced the Dewatering General Permit (DGP) that expired on September 30, 2013. The Final General Permit provided coverage for facilities with construction dewatering of groundwater intrusion and/or storm water accumulation from sites less than one acre and short-term and long-term dewatering of foundation sumps into waters of the Commonwealth of Massachusetts and the State of New Hampshire. The Final permit established permit eligibility conditions, notice of intent requirements, effluent limitations, standards, prohibitions, and best management practices. The eligibility requirements for coverage under the general permits are discussed in detail under Part 3 of the draft permit. The reader is strongly urged to go to that section to determine eligibility.
- Federal Register Notice
- Final Dewatering General Permit (pdf)
- Appendix I: Areas of Critical Environmental Concern (ACEC) in Massachusetts (pdf)
- Appendix II: Summary of Marine Essential Fish Habitat Designations (pdf)
- Appendix III: National Historic Preservation Act Review (pdf)
- Appendix IV: Endangered Species Act Guidance and Eligibility Criteria (pdf)
- Appendix V: Notice of Intent (NOI) Instructions and Suggested Formats (pdf)
- Appendix VI: Notice of Termination (NOT) Instructions and Suggested Formats (pdf)
- Appendix VII: Dilution Factor Calculations for Massachusetts and New Hampshire (pdf)
- Appendix VIII: Test Methods and Minimum Levels for Groundwater Sources (pdf)
- Appendix IX – Standard Conditions (pdf)
- Fact Sheet (pdf)
- Biological Assessment (pdf)
- Response to Comments (pdf)
Notices of Intent
The table below for a chronological listing of NOIs. Older NOIs are listed in the Dewatering General Permit (DGP) NOI archive.
City / Town, State | Site / Address | Permit Number | Date Terminated | Date Issued | Date Posted |
---|---|---|---|---|---|
Boston, MA | 425 Border Street (pdf) | MAG070472 | 01/08/2020 | 12/27/2019 | |
Scituate, MA | Hatherly Country Club (pdf) | MAG070471 | 10/10/2019 | 10/01/2019 | |
Durham, NH | F107 Transmission Line Replacement (Durham) (pdf) | NHG070047 | 02/12/2020 | 06/27/2019 | 06/18/2019 |
Boston, MA | Boston College - Brighton Fields Athletic Complex (pdf) | MAG070470 | 06/03/2019 | 05/28/2019 | |
Boston, MA | Kenmore Square North - Beacon Building (pdf) | MAG070469 | 05/24/2019 | 05/16/2019 | |
Brookline, MA | 1080 Beacon Street (pdf) | MAG070468 | 07/18/2019 | 04/19/2019 | 04/09/2019 |
Dorchester, MA | 233 Hancock Street (pdf) | MAG070467 | 06/28/2019 | 04/16/2019 | 04/05/2019 |
Plymouth, MA | Harbourtown - 150 Water Street (pdf) | MAG070466 | 03/04/2019 | 02/21/2019 | |
Framingham, MA | PW-388 Marble Street Improvement Project (pdf) | MAG070465 | 02/19/2019 | 02/08/2019 | |
Newington, NH | F107 Transmission Line Rebuild - Splice Vault Installation at Gundalow Landing (pdf) | MAG070464 | 02/12/2020 | 02/11/2019 | 02/01/2019 |
Babson Park, MA | Babson Commons at Horn Library (pdf) | MAG070463 | 12/20/2018 | 12/11/2018 | |
Mashpee, MA | 59 Nick Trail (pdf) | MAG070462 | 02/04/2019 | 11/29/2018 | 11/21/2018 |
Boston, MA | The Elizabeth Stone House (pdf) | MAG070461 | 11/01/2019 | 11/26/2018 | 11/14/2018 |
Brockton, MA | Brockton Enterprise Garage (pdf) | MAG070460 | 06/26/2019 | 11/20/2018 | 11/08/2018 |
Weymouth, MA | Smelt Brook Culvert (pdf) | MAG070459 | 11/08/2018 | 11/01/2018 | |
Weymouth, MA | Smelt Brook Culvert (pdf) | MAG070458 | 11/08/2018 | 09/20/2018 | 09/11/2018 |
Worcester, MA | Whitla Drive Pump Station (pdf) | MAG070457 | 03/05/2018 | 02/23/2018 | |
Wrentham, MA | Route 1 (Washington Street) (pdf) | MAG070456 | 02/13/2018 | 02/05/2018 | |
Boston, MA | Chestnut Hill Gatehouse No. 1 (pdf) | MAG070455 | 02/05/2018 | 01/29/2018 | |
Concord, MA | Umbrella Community Arts Center (pdf) | MAG070454 | 12/12/2017 | 12/01/2017 | |
Nantucket, MA | Cumberland Farms Store #2280 (pdf) | MAG070453 | 01/08/2018 | 10/10/2017 | 09/25/2017 |
Easton, MA | Easton Mobile Homes Sewer Repair (pdf) | MAG070452 | 08/23/2017 | 08/11/2017 | |
Buckland, MA | Gardner Falls Hydroelectric Facility (pdf) | MAG070450 | 07/11/2017 | 06/13/2017 | |
Rowe, MA | Bear Swamp Substation (pdf) | MAG070449 | 05/10/2017 | 03/08/2017 | |
Boston, MA | Salerno Place (pdf) | MAG070448 | 03/07/2017 | ||
Boston, MA | 46 - 88 Wareham Street (pdf) | MAG070445 | 03/31/2017 | 01/18/2017 | |
Boston, MA | 110 Broad Street (pdf) | MAG070439 | 10/18/2017 | 03/31/2017 | 01/06/2017 |
South Boston, MA | I-90 Tunnel Remediation (pdf) | MAG070444 | 01/26/2017 | 12/15/2016 | |
Cambridge, MA | 121-139 First Street Dewatering Project (pdf) | MAG070443 | 01/26/2017 | 11/29/2016 | |
Milford, MA | 445 Main Street (pdf) | MAG070441 | 03/31/2017 | 11/15/2016 | |
Cambridge, MA | EQR - 249 Third Street, LLC (pdf) | MAG070442 | 10/30/2018 | 02/02/2017 | 11/02/2016 |