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 We do provide an archived version of the complete drinking water dataset below.
The data from this portal has been archived on this site, last updated on 15 June 2026 11:45 am. The CSO data is queried using a separate script and was last updated on 15 June 2026 11:45 am. 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 |
|---|---|---|---|---|---|
| 1998-08-14 | Notice Of Non-Compliance | DCR BEARTOWN STATE FOREST | WATER SUPPLY/DRINKING WATER | MONTEREY | |
| 2001-07-05 | Unilateral Administrative Order | GRAPEVINE GRILLE | WATER SUPPLY/DRINKING WATER | BELCHERTOWN | |
| 2011-06-06 | Notice Of Non-Compliance | DBA SOLAR SEAL COMPANY | REGULATED ACTIVITY(S) | EASTON | |
| 2019-05-10 | Administrative Consent Order No Penalty | PRINCETON TOWN CAMPUS | 0.0 | WATER SUPPLY/DRINKING WATER | PRINCETON |
| 2023-09-26 | Notice Of Non-Compliance | LINWOOD ANIMAL HOSP | REGULATED ACTIVITY(S) | LOWELL | |
| 2015-04-29 | Notice Of Non-Compliance | BROADWAY GAS | REGULATED ACTIVITY(S) | CAMBRIDGE | |
| 1996-04-22 | Notice Of Non-Compliance | CROSSROADS FOR KIDS/CAMP LAPHAM | WATER SUPPLY/DRINKING WATER | ASHBY | |
| 2003-02-06 | Notice Of Non-Compliance | HILLCREST WATER DISTRICT | WATER SUPPLY/DRINKING WATER | LEICESTER | |
| 2021-02-25 | Notice Of Non-Compliance | WILMINGTON PETRO | REGULATED ACTIVITY(S) | WILMINGTON | |
| 2023-10-30 | Notice Of Non-Compliance | SALISBURY CITGO | REGULATED ACTIVITY(S) | SALISBURY |
| Facility Name | Facility Type | Program | Street Name | Town | Active |
|---|---|---|---|---|---|
| MARIO DAROSA | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 91 DREW AVE | BROCKTON | True |
| COMMERCIAL PROPERTY | RELEASE | WASTE SITE CLEANUP | 101 MAIN ST | WILMINGTON | True |
| ITS CALEB BRETT | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 230 CRESCENT AVE | CHELSEA | True |
| FLETCHER STEPHEN | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 11 FRANKLIN ST | PROVINCETOWN | True |
| TONYS SERVICE & REPAIRS INC | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 705 VETERANS OF FOREIGN WARS PKWY | BOSTON | True |
| MASS COLLEGE OF PHARMACY | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 179 LONGWOOD AVE | BOSTON | True |
| UNITED GAS | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 570 MAIN ST | HARWICH | True |
| VIBBERTS JOHN | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 294 SEA VIEW AVE | OAK BLUFFS | True |
| INDUSTRIAL PARK ACCESS ROAD | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | OFF PLEASANT ST | SOUTHBRIDGE | True |
| EVERSOURCE ENERGY MASS AVE SERVICE CENTE | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 1165 MASSACHUSETTS AVE | BOSTON | True |
| Facility Name | Inspection Date | Inspection Type | Program | Town |
|---|---|---|---|---|
| LINCOLN WATER DEPT | 2021-09-28 | SANITARY SURVEY PARTIAL | WATER SUPPLY/DRINKING WATER | LINCOLN |
| CHERRY VALLEY/ ROCHDALE WATER DISTRICT | 2000-08-17 | SANITARY SURVEY | WATER SUPPLY/DRINKING WATER | LEICESTER |
| SEMASS PARTNERSHIP | 2007-08-13 | Drive By Inspection | REGULATED ACTIVITY(S) | ROCHESTER |
| WINTHROP WATER DIVISION, (MWRA) | 2023-11-15 | PERMIT (QUALIFICATION/REVIEW/COMPLIANCE) | WATER SUPPLY/DRINKING WATER | WINTHROP |
| SARGENTS AUTOMOTIVE INC | 2007-03-05 | Multiple Visits to Identify/Document a Problem | REGULATED ACTIVITY(S) | HAMILTON |
| MEMORIAL DR. IND. PARK SITE 1 (RIGR) | 2014-12-30 | SANITARY SURVEY | WATER SUPPLY/DRINKING WATER | SHREWSBURY |
| MILK STREET GAS & AUTO | 2002-01-11 | ReInspection | REGULATED ACTIVITY(S) | WESTBOROUGH |
| BAY STATE ENVELOPE | 2004-09-23 | Unannounced Multimedia Inspection | REGULATED ACTIVITY(S) | MANSFIELD |
| CAMP LENOX | 2012-07-18 | SANITARY SURVEY | WATER SUPPLY/DRINKING WATER | BECKET |
| FIELD CLUB OF LONGMEADOW | 2004-01-21 | FACILITY SELF REPORTING | WATER SUPPLY/DRINKING WATER | LONGMEADOW |
| DateApplied | FacilityName | FinalDecisionDate | PermitNumber | PermitType | Program | Status | StreetName | Subtype | Town |
|---|---|---|---|---|---|---|---|---|---|
| 2005-05-25T00:00:00 | ROUTE 140 SCHOOL STREET LLC | 2005-11-28T00:00:00 | W064472 | WP13 | WATER POLLUTION CONTROL | Approved | SCHOOL STREET AND MANSFIELD XING | MAJOR SEWER EXTENSION | MANSFIELD |
| 2003-04-16T00:00:00 | SHARON TOLLAND | 2003-05-19T00:00:00 | W037751 | WP59B | WATER POLLUTION CONTROL | Approved | 3 BIRCH ST | APPR OF VARIANCE 15.412(2) EXCLUDING SCHOOLS | WALPOLE |
| 2021-09-10T00:00:00 | MA DCR ADMINISTRATION BUILDING | 2021-11-15T00:00:00 | X288213 | WS15 | WATER SUPPLY/DRINKING WATER | Approved | 100 WINSOR DAM ROAD | Approval Pump Test Report & Construct Source Under 70 GPM | BELCHERTOWN |
| NICHOLAS A BAIN | 2019-07-01T14:55:41 | AL-0043473 | AL | PESTICIDE | Expired | 9 TRAILSIDE DRIVE | PESTICIDE CREDENTIAL | CHELMSFORD | |
| 2000-06-08T00:00:00 | WESTFIELD WELLS 3 & 4 | 2001-03-27T00:00:00 | W011722 | WS08 | WATER SUPPLY/DRINKING WATER | Approved | SHAKER RD | Zone 2 Delineation Approval for Existing Source | WESTFIELD |
| ZEPHYR MARIA PAPIN-TILLERY | 2025-12-31T14:18:22 | FERT-000314 | FERT | PLANT INDUSTRIES | Active | P.O. BOX 73950 | SPECIALTY PRODUCT | DAVIS | |
| Judy Deal | 2025-05-16T15:20:01 | PR-0005937 | PR | PESTICIDE | Active | ONE RIDER TRAIL PLAZA DR., SUITE 300 | PRODUCT REGISTRATION | EARTH CITY | |
| 2006-03-31T00:00:00 | EAST LONGMEADOW RETIREMENT COMMUNITY | 2007-07-17T00:00:00 | W076742 | WP14 | WATER POLLUTION CONTROL | Approved | 714 PARKER ST | MINOR SEWER EXTENSION | EAST LONGMEADOW |
| EMILY C PHALEN | 2025-04-30T09:04:05 | PR-0010089 | PR | PESTICIDE | Active | 525 LOCUST GROVE | PRODUCT REGISTRATION | SPARTANBURG | |
| 1998-04-21T00:00:00 | MARLBORO WATER DEPT | 1998-05-21T00:00:00 | P24705 | WS29 | WATER SUPPLY/DRINKING WATER | Approved | 135 NEIL ST | Chemical Addition Retrofit for Sys Serving Over 3300 People | MARLBOROUGH |
| Chemical Name | Class | Collected Date | Contaminant Group | Location Name | Public Water System Name | Raw or Finished | Measurement Result | Town |
|---|---|---|---|---|---|---|---|---|
| BROMOFORM | COM | 2024-12-04 | THM | MORSE ELEMENTARY SCHOOL | CAMBRIDGE WATER DEPARTMENT | F | 1.17 | CAMBRIDGE |
| 2,2-DICHLOROPROPANE | COM | 2014-11-03 | VOC | FOLLETTE ST. WELL WTP: AFTER TREATMENT | GRAFTON WATER DISTRICT | F | ND | GRAFTON |
| PCB AROCLOR 1242 | COM | 2021-05-24 | SOC | GP WELL # 3 | PEMBROKE WATER DIVISION DPW | F | ND | PEMBROKE |
| CADMIUM | COM | 1997-02-21 | INORG | WELL # 4 | DENNIS WATER DISTRICT | F | ND | DENNIS |
| STYRENE | COM | 2015-04-27 | VOC | TISPAQUIN GP WELL # 2 | MIDDLEBOROUGH WATER SUPPLY | F | ND | MIDDLEBOROUGH |
| HEXAFLUOROPROPYLENE OXIDE DIMER ACID - HFPO-DA | COM | 2023-10-02 | PFAS | WELL # 1 - RICHMOND PARK | HALIFAX WATER DEPARTMENT | F | ND | HALIFAX |
| PERFLUOROUNDECANOIC ACID - PFUNA | COM | 2026-01-07 | PFAS | LANCASTER AVE WTP (02G/07G BLEND) | LUNENBURG WATER DISTRICT | F | ND | LUNENBURG |
| 2,2-DICHLOROPROPANE | COM | 2025-03-06 | VOC | PARTRIDGE RD. GP WELL | DUXBURY WATER DEPARTMENT | F | ND | DUXBURY |
| PCB AROCLOR 1232 | COM | 2012-05-14 | SOC | PUMPHOUSE (02G, 03G) | VINE BROOK ESTATES | F | ND | WESTFORD |
| ARSENIC | NTNC | 1998-04-27 | INORG | WELL # 1 | SANDISFIELD PUBLIC SCHOOL | F | ND | SANDISFIELD |
| Year | Public Water System Name | Contaminant Group | Raw or Finished | Result |
|---|---|---|---|---|
| 2014 | AQUINNAH RESTAURANT | SECCON | R | 1 |
| 2013 | BERNARDSTON FIRE WATER DIST | SECCON | F | 2 |
| 1999 | ROCKPORT WATER DEPT | INORG | R | 1 |
| 2015 | TEMPLETON MUNIC. LIGHT AND WATER PLANT | NITRAT | F | 4 |
| 2007 | NORTH ANDOVER WATER DEPT | BROMAT | F | 3 |
| 2010 | BOYLSTON WATER DISTRICT | INORG | F | 2 |
| 2016 | EAGLE HILL SCHOOL | NITRAT | F | 1 |
| 1995 | MWRA | INORG | F | 33 |
| 1999 | HOLLAND ELEMENTARY SCHOOL | INORG | F | 14 |
| 2020 | MWRA | INORG | F | 106 |
| Year | Incident ID | incidentDate | Reporter Class | Event Type | Water Body | Municipality | Volume |
|---|---|---|---|---|---|---|---|
| 2023.0 | 09730b3b-3a53-4b31-9bbc-8b6f99a4ac31 | 2023-09-18 07:30:21 | Public Notification Report | CSO – UnTreated | MERRIMACK RIVER | LOWELL | |
| 2023.0 | 2feb3da1-a371-469f-b99b-7b0678b7dd12 | 2023-09-11 00:00:00 | Verified Data Report | CSO – UnTreated | CONNECTICUT R. | HOLYOKE | 124462.0 |
| 2024.0 | 3003ddc6-62a0-4579-b22d-05551ff36013 | 2024-03-23 20:49:45 | Verified Data Report | Partially Treated – Blended | MOUNT HOPE BAY | FALL RIVER | 33200000.0 |
| 2025.0 | fcd26e5e-39c2-4b45-8f9c-9147ccaa6057 | 2025-07-01 00:00:00 | Verified Data Report | CSO – UnTreated | CONNECTICUT R. | CHICOPEE | 891339.0 |
| 2025.0 | 8e978c4d-ec96-410d-a99a-0f1f52f32a7d | 2025-03-06 12:28:50 | Verified Data Report | CSO – UnTreated | ACUSHNET RIVER | NEW BEDFORD | 63517.0 |
| 2024.0 | e8a09e46-ecbf-4589-b783-9c1b537c16d3 | 2024-06-26 07:56:29 | Public Notification Report | Partially Treated – Blended | MASSACHUSETTS BAY | MASSACHUSETTS BAY | |
| 2023.0 | fe672733-7795-4287-b271-2235ec0a3d23 | 2023-05-20 00:00:00 | Verified Data Report | CSO – UnTreated | PUNCH BROOK CULVERT@BOULDER ST VIA MAIN ST | FITCHBURG | 85000.0 |
| 2023.0 | 65d52922-8168-44c4-8324-14fffdc36410 | 2023-01-03 05:59:32 | Public Notification Report | CSO – Treated | TAUNTON RIVER | FALL RIVER | |
| 2023.0 | fcb712f2-ddf8-4637-b8d8-aafe5e5ba37e | 2023-04-30 00:00:00 | Public Notification Report | CSO – UnTreated | CONNECTICUT R. | SPRINGFIELD | |
| 2025.0 | 784adecc-8b71-40ba-9d8c-b3f94cd7a364 | 2025-08-20 10:38:29 | Public Notification Report | CSO – UnTreated | TAUNTON RIVER | FALL RIVER |