The Archive of Massachusetts Environmental Data
In August of 2017, the MA Executive Office of Energy and Environmental Affairs (EEA) began operating an “Enterprise Data Portal” for certain state regulatory data. Initially, this has included permit, facilities, inspections, and enforcement, and drinking water testing data; more data assets are promised “regularly.”
Data on combined sewer overflows (CSOs) were added in 2022 and now incorporated in AMEND. Other data tables added to the portal in recent years are not yet integrated.
Definitions, FAQs, disclaimers, and other information related to these datasets is available in PDF format at the EEA Data Portal website’s help page and archived here:
One of these datasets, the historical drinking water quality measurement dataset, is significantly larger than the other (>200 MB in total). Because this measurement-level drinking water quality reporting is not instrumental to the goals of AMEND, we do not include it in our integrated database. We do provide an archived version of the complete drinking water dataset below.
The data from this portal has been archived on this site, last updated on 28 September 2026 09:23 pm. The CSO data is queried using a separate script and was last updated on 28 September 2026 09:23 pm. Both datasets are refreshed automatically on a weekly basis.
In addition to including them in them in the integrated AMEND Database, we provide our archives of each of these data assets in CSV format:
For brevity, a random sample of 10 rows from each table and a subset of all columns is shown below for illustration as to the tables’ form and content.
| Enforcement Date | Enforcement Type | Facility Name | Penalty Assessed | Program | Town |
|---|---|---|---|---|---|
| 2005-12-07 | Administrative Consent Order With Penalty | PLUM ISLAND GRILLE, INC. | 1000.0 | WATER SUPPLY/DRINKING WATER | NEWBURY |
| 2012-08-10 | Notice Of Non-Compliance | BOURNE WATER DISTRICT | 0.0 | WATER SUPPLY/DRINKING WATER | BOURNE |
| 2005-03-18 | Notice Of Non-Compliance | SAINT GOBAIN ABRASIVES INC | REGULATED ACTIVITY(S) | WORCESTER | |
| 2014-12-12 | Notice Of Non-Compliance | HOME GOODS | REGULATED ACTIVITY(S) | NORWELL | |
| 1998-03-31 | Notice Of Non-Compliance | TEDS PACKAGE STORE/GENES CAFE | WATER SUPPLY/DRINKING WATER | CHARLTON | |
| 2011-09-22 | Notice Of Non-Compliance | SHEPARDS SERVICE STATION | REGULATED ACTIVITY(S) | WAYLAND | |
| 2010-11-01 | Notice Of Non-Compliance | 7 ELEVEN 38905 | REGULATED ACTIVITY(S) | NORTH ANDOVER | |
| 1998-09-29 | Notice Of Non-Compliance | BERKSHIRE BERRIES | WATER SUPPLY/DRINKING WATER | BECKET | |
| 1996-09-27 | Notice Of Non-Compliance | STOW MUNICIPAL BUILDINGS | WATER SUPPLY/DRINKING WATER | STOW | |
| 2004-08-10 | Notice Of Non-Compliance | FARMER BROWNS | WATER SUPPLY/DRINKING WATER | MIDDLETON |
| Facility Name | Facility Type | Program | Street Name | Town | Active |
|---|---|---|---|---|---|
| WOOD TRUCKING CORP | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 17 ELMWOOD CIR | PEABODY | True |
| HOOT AEROBIC SYSTEMS INC | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 2885 HWY 14 E | WILMINGTON | True |
| SEWAGE DISPOSAL SYSTEM | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 49 CRESCENT ST | WESTON | True |
| MA DIVISION OF ENVIRONMENTAL MANAGEMENT | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | GREAT NCK | MASHPEE | True |
| JOSEPH & JENNIFER DOWLING & JUDITH BOSKY | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 55 FALLON DR | WESTPORT | True |
| MCKAY WILLIAM | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 47 RIVER RD | MASHPEE | True |
| PALM MEADOWS ESTATES | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | CLEWS ST | SHREWSBURY | True |
| MOBIL OIL HERITAGE SERVICE CENTERS INC | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 277 BEDFORD ST | LEXINGTON | False |
| TOPSFIELD SHELL | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 158 HAVERHILL RD | TOPSFIELD | True |
| PATON BRUCE | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 791 ROCKY HILL RD | PLYMOUTH | True |
| Facility Name | Inspection Date | Inspection Type | Program | Town |
|---|---|---|---|---|
| WEST SPRINGFIELD TRANSFER STATION | 2013-08-21 | Solid Waste Inspect with Enforcement Potential | REGULATED ACTIVITY(S) | WEST SPRINGFIELD |
| BAKER COMMODITIES INC | 2008-06-02 | Unannounced Multimedia Inspection | REGULATED ACTIVITY(S) | BILLERICA |
| BERNARDSTON FIRE WATER DIST | 2019-08-14 | SANITARY SURVEY | WATER SUPPLY/DRINKING WATER | BERNARDSTON |
| SEAMAN COTTAGES LLC | 2026-08-13 | SANITARY SURVEY | WATER SUPPLY/DRINKING WATER | EASTHAM |
| GEORGETOWN WATER DEPARTMENT | 2001-11-01 | OTHER | WATER SUPPLY/DRINKING WATER | GEORGETOWN |
| AREVA NP INC ENVIRONMENTAL LABORATORY | 2004-10-15 | Unannounced Multimedia Inspection | REGULATED ACTIVITY(S) | WESTBOROUGH |
| BROOK VILLAGE CONDOMINIUM | 2000-10-05 | Site Visit But Not Full Inspection | WATER SUPPLY/DRINKING WATER | BOXBOROUGH |
| MA HIGHWAY DEPARTMENT | 2003-02-06 | Drive By Inspection | REGULATED ACTIVITY(S) | CONCORD |
| CAMBIUM CORP | 2002-04-12 | Unannounced Multimedia Inspection | REGULATED ACTIVITY(S) | ATHOL |
| CONCORD WATER DEPT | 2003-01-30 | OTHER | WATER SUPPLY/DRINKING WATER | CONCORD |
| DateApplied | FacilityName | FinalDecisionDate | PermitNumber | PermitType | Program | Status | StreetName | Subtype | Town |
|---|---|---|---|---|---|---|---|---|---|
| JONATHAN O’NEAL | 2025-12-15T12:59:28 | AL-0057021 | AL | PESTICIDE | Active | 149 WASHINGTON ST | PESTICIDE CREDENTIAL | GROVELAND | |
| Sweetheart Creek | 2023-03-06T00:00:00 | WW01-0000121 | WW01 | WETLANDS & WATERWAYS | Active | 361 GREAT ISLAND ROAD | WW01 | Yarmouth | |
| 1996-09-17T00:00:00 | BABCOCK SCOTT & MARCIA | 1998-04-02T00:00:00 | 86309 | WW02A | WETLANDS & WATERWAYS | Approved | 86 OLD MEETINGHOUSE LN | Waterways license, amnesty projects, Water-dependent use projects: $100 | NORWELL |
| HANOVER BROADWAY WWTP | 2025-08-06T10:15:01 | WP79-0000753 | WP79 | WATER POLLUTION CONTROL | Active | 507 BROADWAY | WP79 | HANOVER | |
| Bay Farm Ponds | 2026-02-18T19:33:19 | WM04-0001399 | WM04 | WATERSHED MANAGEMENT | Active | 0 BAY FARM ROAD | WM04 | Duxbury | |
| 1999-10-12T00:00:00 | PAN GLO | 2000-04-10T00:00:00 | 204596 | AQ02 | AIR QUALITY CONTROL | Approved | 110 GODDARD MEMORIAL DR | Plan Approval Non-Major Comprehensive | WORCESTER |
| 2017-11-20T00:00:00 | BELLINGHAM LANDFILL | 2018-05-16T00:00:00 | X274763 | SW22 | SOLID WASTE MGMT | Approved | 119 SOUTH MAPLE ST | Minor Modification of Landfill | BELLINGHAM |
| 1999-05-24T00:00:00 | KROL PROPERTY LOTS 31 AND 35 | 1999-06-28T00:00:00 | 204975 | WS26 | WATER SUPPLY/DRINKING WATER | Approved | BARDWELL ST | Sale/Acquisition of Land | BELCHERTOWN |
| 2013-03-01T00:00:00 | LANE CONSTRUCTION CORP | 2013-05-14T00:00:00 | X255045 | WW01B | WETLANDS & WATERWAYS | Approved | DAMON RD | Water-Dependent License Other Projects | NORTHAMPTON |
| 1201QUAKER STREET | 2022-10-07T13:41:05 | SW45-0000181 | SW45 | SOLID WASTE MGMT | Active | 1201 QUAKER ST | SW45 | NORTHBRIDGE |
| Chemical Name | Class | Collected Date | Contaminant Group | Location Name | Public Water System Name | Raw or Finished | Measurement Result | Town |
|---|---|---|---|---|---|---|---|---|
| DIBROMOCHLOROMETHANE | COM | 2013-03-07 | THM | 230 MAIN STREET | MILFORD WATER DEPARTMENT | F | 2.2 | MILFORD |
| 1,2-DICHLOROETHANE | COM | 2014-02-07 | VOC | FERRY ST. #2 WELLFIELD | MARSHFIELD WATER DEPARTMENT | F | ND | MARSHFIELD |
| NITRATE | NC | 2015-08-30 | NITRAT | 55 WIDGEON POND | DCR MYLES STANDISH STATE FOREST | F | ND | CARVER |
| 9-CHLOROHEXADECAFLUORO-3-OXANONE-1-SULFONIC ACID-9CL-PF3ONS | NC | 2021-10-20 | PFAS | WELL 2 RAW | SANDY POND CAMPGROUND | R | ND | PLYMOUTH |
| POTASSIUM | NC | 2013-05-20 | SECCON | WELL #1 - POST TREATMENT | BOSTON ROAD MARKET AND LIQUOR | F | ND | GROTON |
| 11-CHLOROEICOSAFLUORO-3-OXAUNDECANE-1-SULFONIC ACID-11CL-PF3OUDS | COM | 2022-04-04 | PFAS | WTP – RAW WATER | TEWKSBURY WATER DEPARTMENT | R | ND | TEWKSBURY |
| N-BUTYLBENZENE | COM | 2018-06-11 | VOC | SOUTH ACTON WTP: AFTER TREATMENT | ACTON WATER SUPPLY DISTRICT | F | ND | ACTON |
| TOTAL TRIHALOMETHANES | COM | 2021-08-04 | THM | 834 KEMPTON STC - FIRE STATION | CITY OF NEW BEDFORD DPI | F | 52.3 | NEW BEDFORD |
| 1,1,1-TRICHLOROETHANE | NTNC | 2016-11-15 | VOC | WELL #2 | WACHUSETT MOUNTAIN SKI AREA | F | ND | PRINCETON |
| TOTAL ORGANIC CARBON (TOC) | COM | 2012-07-11 | TOC | FINISHED: DILLA WTP (BLEND) | MILFORD WATER DEPARTMENT | F | 1.41 | MILFORD |
| Year | Public Water System Name | Contaminant Group | Raw or Finished | Result |
|---|---|---|---|---|
| 2003 | LYNN WATER AND SEWER COMM | VOC | F | 3 |
| 2008 | LEDGEWOOD ESTATES CONDOMINIUMS | NITRAT | F | 1 |
| 2020 | THE MEETING HOUSE @ STOW CONDO | SECCON | F | 18 |
| 2024 | BELCHERTOWN WATER DISTRICT | VOC | F | 128 |
| 2022 | VILLAGE AT GREYLOCK | PFAS | F | 19 |
| 2016 | DRUMMER COVE COTTAGES | SODIUM | F | 1 |
| 2014 | CAMP BOURNEDALE | NITRAT | F | 2 |
| 2012 | HANCOCK ELEMENTARY SCHOOL | SOC | F | 45 |
| 2009 | PLEASANT VALLEY COUNTRY CLUB | PERCHL | F | 4 |
| 2025 | ANCHOR ACADEMY BERKLEY | VOC | F | 236 |
| Year | Incident ID | incidentDate | Reporter Class | Event Type | Water Body | Municipality | Volume |
|---|---|---|---|---|---|---|---|
| 2023.0 | 4f7ba048-29ba-46ab-ab59-657c5c291d2b | 2023-07-29 00:00:00 | Verified Data Report | CSO – UnTreated | OUTER NEW BEDFORD HARBOR | NEW BEDFORD | 30800.0 |
| 2025.0 | 2d8337ee-5605-4720-9735-1e00d2ae2462 | 2025-05-03 11:38:02 | Verified Data Report | CSO – UnTreated | CONNECTICUT RIVER | SPRINGFIELD | 5285120.0 |
| 2026.0 | 7a19556a-4f73-4b48-87f6-4e29f4f86c06 | 2026-09-13 00:00:00 | Public Notification Report | CSO – UnTreated | MERRIMACK RIVER | LOWELL | |
| 2025.0 | 28103bfc-c4b0-4434-94fd-a2785abc996a | 2025-10-08 19:49:43 | Public Notification Report | CSO – Treated | CHARLES RIVER | BOSTON | |
| 2025.0 | bc7f7fab-2834-48b4-bb13-42a273702475 | 2025-04-26 13:02:28 | Public Notification Report | CSO – UnTreated | CONNECTICUT RIVER | SPRINGFIELD | |
| 2023.0 | f5dfc831-1295-4536-9873-e7c648282c0d | 2023-09-25 14:18:58 | Public Notification Report | Partially Treated – Blended | MERRIMACK RIVER | LOWELL | |
| 2023.0 | 27eea9a8-ee09-4bbc-be85-4f360016b330 | 2023-07-16 12:36:42 | Public Notification Report | CSO – UnTreated | CONNECTICUT R. | SPRINGFIELD | |
| 2023.0 | badd7582-61b6-4979-a416-e1c24ad50276 | 2023-07-10 00:00:00 | Verified Data Report | CSO – UnTreated | INNER NEW BEDFORD HARBOR | NEW BEDFORD | 14420.0 |
| 2025.0 | 5d0e2a64-7b98-4355-a92d-b21e9ef865c4 | 2025-07-31 04:00:00 | Verified Data Report | CSO – UnTreated | CONNECTICUT R. | HOLYOKE | 5805.0 |
| 2023.0 | a98212a2-83bb-4ea7-b93b-f0c9bac32484 | 2023-07-29 21:52:30 | Public Notification Report | CSO – UnTreated | POWER CANAL CONNECTICUT RIVER | MONTAGUE |