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NPDES Permits in New England

Dewatering General Permit (DGP)

Final general permit available for Massachusetts and New Hampshire

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.

This General Permit replaces the Dewatering General Permit (DGP) that expired on September 30, 2013. 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 and the State of New Hampshire. The Final 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 draft 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.

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.

EPA Contacts

Suzanne Warner (warner.suzanne@epa.gov), 617-918-1383

State Contacts


Bob Kubit (Robert.Kubit@state.ma.us)


Amy Clark (Amy.Clark@des.nh.gov)

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
07/25/2016       Newton, MA Lasell College (PDF) (36 pp, 17.8 MB)
07/05/2016       Dighton, MA Former Zeneca Specialties (PDF) (18 pp, 6.3 MB)
06/07/2016 06/14/2016     North Reading, MA Atlantic Plaza (PDF) (63 pp, 8.4 MB)
05/26/2016       Bourne, MA Coady School Residences (PDF) (10 pp, 379 K)
05/17/2016 06/03/2016     Allston, MA Telford Street Condominiums (PDF) (99 pp, 8.7 MB)
05/16/2016 06/03/2016     Clinton, MA Clinton WWTP (PDF) (111 pp, 7.2 MB)
05/10/2016       Easton, MA Easton Mobile Homes Sewer Repair (PDF) (22 pp, 3.2 MB)
04/22/2016 05/13/2016     Westminster, MA Cumberland Farms Inc. (PDF) (79 pp, 7.5 MB)
04/14/2016 05/16/2016     Allston, MA Harvard University Soldiers Field Athletic Complex (PDF) (64 pp, 7.4 MB)
04/05/2016 05/09/2016     Boston, MA BU - Myles Standish Hall (PDF) (99 pp, 4.2 MB)
03/15/2016 03/31/2016     Scituate, MA Scituate Middle School (PDF) (35 pp, 2.7 MB)
03/04/2016 03/31/2016     Grafton, MA Grafton Wastewater Treatment Plant Improvements (PDF) (37 pp, 2.4 MB)
02/22/2016 03/31/2016     Scituate, MA Scituate Public Safety Facility (PDF) (28 pp, 1.4 MB)
02/17/2016 04/01/2016     Somerville, MA Site Revelopment at Block 5 Assembly Row Project (PDF) (132 pp, 10.2 MB)
02/12/2016 03/31/2016     Cambridge, MA Huron Avenue 40" Water Main (PDF) (44 pp, 5.6 MB)
02/12/2016 03/10/2016   MAG070415 Dorchester, MA 1971 – 1977 Dorchester Ave. (PDF) (149 pp, 7.2 MB)
02/11/2016 03/10/2016   MAG070414 Wayland, MA Wayland Town Hall (PDF) (88 pp, 5.8 MB)
02/10/2016 03/10/2016   MAG070413 Brockton, MA Good Samaritan Medical Center (PDF) (79 pp, 8.7 MB)
01/26/2016 02/09/2016     East Boston, MA East Pier – Buildings 5 & 6 (PDF) (34 pp, 2.6 MB)
01/15/2016 01/26/2016     South Boston, MA 14 West Broadway (PDF) (60 pp, 4.2 MB)

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