NPDES Permits in New England
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 October 7, 2008.
This General Permit replaces the Construction Dewatering General Permit (CDGP) that expired on September 23, 2007. The Final General Permit provides 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 (including both Commonwealth and Indian country lands) and the State of New Hampshire. The permit establishes 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 permit. The reader is strongly urged to go to that section to determine eligibility.
Owners and/or operators of facilities with dewatering discharges, including those currently authorized to discharge under the expired General Permits, will be required to submit a Notice of Intent (NOI) to be covered by the General Permit to both EPA-New England and the appropriate state agency. EPA and the State will review the NOI and the facility will receive written notification from EPA stating whether permit coverage and authorization to discharge under one of the general permits is approved.
NOIs may be sent via USPS, email, or fax to EPA at EPA-Region 1, Office of Ecosystem Protection (OEP06-3), 5 Post Office Square, Boston, Massachusetts, 02109-3912; email address GeneralPermit.Dewatering@epa.gov; or fax number (617) 918-0828. Notification information shall be submitted to the appropriate State agency at the addresses listed at Part 5 of the General Permit.
You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.
- Federal Register Notice (PDF) (7 pp, 33 K)
- Final Dewatering General Permit (PDF) (37 pp, 236 K)
- Appendix I: Areas of Critical Environmental Concern (Acec) in Massachusetts (PDF) (4 pp, 228 K)
- Appendix II: Essential Fish Habitat Requirements (PDF) (3 pp, 63 K)
- Appendix III: Endangered Species and Historic Properties Requirements (PDF) (12 pp, 65 K)
- Appendix IV: Endangered Species Act: County Species List (PDF) (3 pp, 123 K)
- Appendix V: Notice of Intent (NOI) Instructions and Suggested Form (PDF) (9 pp, 77 K)
- Appendix VI: Notice of Termination (Not) Instructions and Suggested Form (PDF) (2 pp, 116 K)
- Appendix VII: Dilution Factor Calculations for Massachusetts and New Hampshire (PDF) (2 pp, 18 K)
- Appendix VIII: Minimum Levels and Test Methods for Groundwater Sources (PDF) (1 pg, 16 K)
Helpful Information and Links
- Fact Sheet (PDF) (22 pp, 125 K)
- DMR Form (PDF) (1 pg, 23 K)
- Flow Chart of Which General Permits are Available for Construction and Dewatering Related Discharges (PDF) (2 pp, 52 K)
- USFWS Endangered Species web site
- National Park Service, National Register of Historic Places web site
- EPA Construction General Permit
- Construction Industry Compliance Assistance Center
Olga Vergara (firstname.lastname@example.org), 617-918-1519
Victor Alvarez (email@example.com), 617-918-1572
Notices of Intent
Notices of Intent (NOI) will be posted on this page for a minimum of 7 days after EPA receives them. Please contact Olga Vergara if you have any questions regarding NOIs. See the table below for a chronological listing of NOIs. Older NOIs are listed in the Dewatering General Permit (DGP) NOI archive.
|Date Posted||Date Issued||Date Terminated||Permit Number||Town/City||Name of Site/Facility|
|08/23/2013||09/06/2013||Georgetown, MA||Project at Parker River Culvert (PDF) (30 pp, 10.7 MB)|
|08/09/2013||08/16/2013||Ashland, MA||Chestnut Street Bridge (PDF) (8 pp, 1.8 MB)|