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 We do provide an archived version of the complete drinking water dataset below.
The data from this portal has been archived on this site, last updated on 11 May 2026 09:35 am. The CSO data is queried using a separate script and was last updated on 11 May 2026 09:35 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 |
|---|---|---|---|---|---|
| 2001-10-30 | Notice Of Non-Compliance | 91 AND 95 COMMERCIAL STREET | WATER SUPPLY/DRINKING WATER | WELLFLEET | |
| 2011-01-05 | Notice Of Non-Compliance | PIONEER VALLEY REGIONAL SCHOOL | 0.0 | WATER SUPPLY/DRINKING WATER | NORTHFIELD |
| 2025-05-20 | Notice Of Non-Compliance | ONE ENERGY 002 | REGULATED ACTIVITY(S) | MARLBOROUGH | |
| 1996-06-14 | Notice Of Non-Compliance | K P GRILLE | WATER SUPPLY/DRINKING WATER | REHOBOTH | |
| 2017-01-25 | Notice Of Non-Compliance | SUNOCO GASOLINE STATION 155 | REGULATED ACTIVITY(S) | CHICOPEE | |
| 2011-09-23 | Administrative Consent Order No Penalty | HERITAGE ASSOCIATION | 0.0 | WATER SUPPLY/DRINKING WATER | WARREN |
| 2000-04-06 | Notice Of Non-Compliance | UPHAM FARMS CONDOMINIUMS | WATER SUPPLY/DRINKING WATER | CHARLTON | |
| 2009-11-16 | Notice Of Non-Compliance | FORMER FOUNDRY SAND LANDFILL | REGULATED ACTIVITY(S) | SPRINGFIELD | |
| 2005-08-15 | Administrative Consent Order With Penalty | SUDBURY TRANSFER & RECYCLING CENTER | 10000.0 | REGULATED ACTIVITY(S) | SUDBURY |
| 2010-03-01 | Notice Of Non-Compliance | HAMPDEN TOWN HALL | 0.0 | WATER SUPPLY/DRINKING WATER | HAMPDEN |
| Facility Name | Facility Type | Program | Street Name | Town | Active |
|---|---|---|---|---|---|
| FATIMA & NAUMAAN LANE SEWER EXT | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | FATIMA LN | WORCESTER | True |
| ROBERT & RAMONA BEAN | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 16 MASSAPOAG WAY | DUNSTABLE | True |
| FAIRFIELD RELTY TRUST | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 2 FAIRFIELD DR | WAREHAM | True |
| MA WATER RESOURCE AUTHORITY | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 761 HYDE PARK AVE | BOSTON | True |
| THE VILLAGE AT MERRIMACK GREENS PHASE II | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | THE VILLAGE AT MERRIMACK GRNS | METHUEN | True |
| MARY MCGEOCH | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 10 VINE ST | GLOUCESTER | True |
| JJ&W SOLUTIONS LLC | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 4113 WILMETTE AVENUE | True | |
| KIMBERRY FARMS INC | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 20 GATE ST | CARVER | True |
| ONE STOP PLAZA CONVENIENCE | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | 16 MAIN ST | WINCHENDON | True |
| FESSENDEN PETER | DEP REGULATED FACILITY | REGULATED ACTIVITY(S) | #57 DRIVE B | OTIS | True |
| Facility Name | Inspection Date | Inspection Type | Program | Town |
|---|---|---|---|---|
| WYMAN GORDON COMPANY | 2005-09-27 | Compliance Evaluation-Review of Compliance Data & Reports | REGULATED ACTIVITY(S) | GRAFTON |
| KATIES COUNTRY STORE | 2008-12-12 | SANITARY SURVEY | WATER SUPPLY/DRINKING WATER | OTIS |
| BR GOLF ENTERPRISES INC | 2006-02-16 | Unannounced Multimedia Inspection | REGULATED ACTIVITY(S) | LAKEVILLE |
| YANKEE DINER | 2001-08-01 | Site Visit But Not Full Inspection | WATER SUPPLY/DRINKING WATER | CHARLTON |
| EAST COAST DYEING & FINISHING | 2005-01-13 | Drive By Inspection | REGULATED ACTIVITY(S) | NEW BEDFORD |
| CT VALLEY SANITARY WASTE DISPOSAL INC | 2001-06-29 | Unannounced Single-Media Inspection | REGULATED ACTIVITY(S) | CHICOPEE |
| HOLIDAY FARM COMPOST SITE | 2013-07-15 | Solid Waste Inspect with Enforcement Potential | REGULATED ACTIVITY(S) | DALTON |
| ORANGE LANDFILL AND TRANSFER STATION | 2004-06-10 | Announced Single-Media Inspection | REGULATED ACTIVITY(S) | ORANGE |
| TBI RECYCLING FACILITY | 2019-11-07 | Solid Waste Inspect with Enforcement Potential | REGULATED ACTIVITY(S) | NORTH ANDOVER |
| LELAND COLLISION | 2016-07-21 | Assess Reporting Problems or Inclusion to Regulated Universe | REGULATED ACTIVITY(S) | WORCESTER |
| DateApplied | FacilityName | FinalDecisionDate | PermitNumber | PermitType | Program | Status | StreetName | Subtype | Town |
|---|---|---|---|---|---|---|---|---|---|
| RICHARD H. WALL | 2023-12-25T16:19:26 | PC-0037057 | PC | PESTICIDE | Expired | 178 GUNNERS EXCHANGE RD | PESTICIDE CREDENTIAL | PLYMOUTH | |
| LAURIE PHARIS | 2025-06-10T14:54:55 | PR-0003174 | PR | PESTICIDE | Active | 4823-D TOWER ROAD | PRODUCT REGISTRATION | GREENSBORO | |
| 2002-05-30T00:00:00 | WHYTE JOHN | 2002-06-26T00:00:00 | W028506 | WP59B | WATER POLLUTION CONTROL | Approved | 232-234 WEST MAIN ST | APPR OF VARIANCE 15.412(2) EXCLUDING SCHOOLS | AVON |
| TERRY WALMSLEY | 2020-07-01T05:00:10 | PR-001658 | PR | PESTICIDE | Expired | 300 PALM STREET | PRODUCT REGISTRATION | SCRANTON | |
| 2004-04-08T00:00:00 | BRODIE MOUNTAIN RESORT | 2004-05-06T00:00:00 | W050208 | WS15 | WATER SUPPLY/DRINKING WATER | Approved | 36 WILLIAMSTOWN RD | Approval Pump Test Report & Construct Source Under 70 GPM | LANESBOROUGH |
| 1996-09-05T00:00:00 | PARSONS LANE ELDERLY AND FAMILY HOUSING | 1996-10-18T00:00:00 | 131824 | WP57 | WATER POLLUTION CONTROL | Approved | PARSONS AVE | APPROVAL OF RECIRCULATING SAND FILTER OR EQUIVALENT | HALIFAX |
| 2015-05-22T00:00:00 | STOUGHTON WATER DEPARTMENT | 2015-06-16T00:00:00 | X263906 | WS29 | WATER SUPPLY/DRINKING WATER | Approved | 950 CENTRAL ST | Chemical Addition Retrofit for Sys Serving Over 3300 People | STOUGHTON |
| 2007-02-27T00:00:00 | SEPTITECH INC | 2007-07-27T00:00:00 | W089063 | WP61F | WATER POLLUTION CONTROL | Approved | 70 COMMERCIAL ST | Renewal of Alternative System | LEWISTON |
| 2001-12-28T00:00:00 | CASELLA WASTE MANAGEMENT OF MA INC | 2002-03-29T00:00:00 | W025268 | AQ01 | AIR QUALITY CONTROL | Approved | 500 HUBBARD AVE | Plan Approval Limited | PITTSFIELD |
| RANDY S MACKENZIE | 2018-06-29T01:05:16 | AL-0046601 | AL | PESTICIDE | Expired | 33 CROMESETT ROAD | PESTICIDE CREDENTIAL | WAREHAM |
| Chemical Name | Class | Collected Date | Contaminant Group | Location Name | Public Water System Name | Raw or Finished | Measurement Result | Town |
|---|---|---|---|---|---|---|---|---|
| IRON | COM | 2011-10-24 | SECCON | GP WELL #10 | HARWICH WATER DEPARTMENT | F | 1.4 | HARWICH |
| METHYL ETHYL KETONE | COM | 2025-06-04 | VOC | RALICKI WELL POINT OF ENTRY | SUNDERLAND WATER DISTRICT | F | ND | SUNDERLAND |
| FLUORIDE | NTNC | 2021-05-03 | INORG | POINT OF ENTRY POST TREATMENT | HAMPSHIRE FRANKLIN CHILDRENS DAY CARE | F | 3.42 | LEVERETT |
| XYLENES (TOTAL) | COM | 2011-06-07 | VOC | FINISHED: WELL #1 TWF | WEST GROTON WATER SUPPLY DISTRICT | F | ND | GROTON |
| 2,4-D | COM | 2006-07-25 | SOC | MARES POND WELL (04G) | FALMOUTH WATER DEPT | F | ND | FALMOUTH |
| N-METHYL PERFLUOROOCTANESULFONAMIDOACETIC ACID - NMEFOSAA | COM | 2023-10-05 | PFAS | WATER TREATMENT PLANT - FINISHED | NORTH CHELMSFORD WATER DIST | F | ND | CHELMSFORD |
| 1,1,1,2-TETRACHLOROETHANE | COM | 2025-05-20 | VOC | FINISHED: WELL #3 PAXTON ROAD | LEICESTER WATER SUPPLY DISTRICT | F | ND | LEICESTER |
| P-CHLOROTOLUENE | NC | 2015-01-20 | VOC | WELL #1 | YUMMY ASIAN FUSION CUISINE | F | ND | DUDLEY |
| NITRATE | NC | 2021-02-03 | NITRAT | POINT OF ENTRY | DANIEL SHAYS PACKAGE STORE | F | 3.08 | ORANGE |
| PERFLUOROHEXANOIC ACID - PFHXA | COM | 2025-03-05 | PFAS | HAPPY HOLLOW REPL. WELLS | WAYLAND WATER DEPARTMENT | F | 1.78 | WAYLAND |
| Year | Public Water System Name | Contaminant Group | Raw or Finished | Result |
|---|---|---|---|---|
| 2025 | DADS RESTAURANT | NITRAT | F | 1 |
| 2024 | BURLINGTON WATER DEPT | SECCON | R | 8 |
| 2017 | BISSELVILLE ESTATE | INORG | F | 13 |
| 2017 | UNIFIED 2 PACKAGING GROUP | VOC | F | 62 |
| 2018 | FIRST PARISH CHURCH OF BERLIN | SECCON | F | 36 |
| 2014 | MECHANICS HALL | NITRIT | F | 1 |
| 2017 | HANOVER WATER DEPT | SECCON | F | 4 |
| 2025 | U.S. ARMY DEVENS (SOUTH POST) | NITRAT | F | 5 |
| 2000 | DCR WILLARD BROOK STATE FOREST | SODIUM | F | 1 |
| 2008 | CARRIAGE HOUSE CONDOMINIUM | NITRAT | F | 1 |
| Year | Incident ID | incidentDate | Reporter Class | Event Type | Water Body | Municipality | Volume |
|---|---|---|---|---|---|---|---|
| 2025.0 | 0851dd93-0fd2-4de9-a5b2-19877ddc7a36 | 2025-04-01 13:31:03 | Verified Data Report | CSO – Treated | MILL BROOK TO BLACKSTONE RIVER | WORCESTER | 773000.0 |
| 2025.0 | 8acb1769-2a1e-42b1-a676-f031b5178551 | 2025-07-25 04:00:00 | Verified Data Report | CSO – Treated | TAUNTON RIVER | FALL RIVER | 1160000.0 |
| 2022.0 | 254bf3a4-d1ac-444a-9ed5-819c0cdfa8f2 | 2022-07-14 17:38:06 | Public Notification Report | CSO – UnTreated | LITTLE RIVER | HAVERHILL | |
| 2023.0 | 0d243c38-27b3-4aed-ba23-c5b4082873f1 | 2023-05-21 08:10:53 | Public Notification Report | CSO – UnTreated | CONNECTICUT R. | CHICOPEE | |
| 2024.0 | 66340d7a-776e-49ad-9b52-0292edf41510 | 2024-06-20 07:32:31 | Public Notification Report | CSO – UnTreated | CONNECTICUT R. | SPRINGFIELD | |
| 2024.0 | ccd4da9e-13ef-4e0e-a16b-9388837b6ebe | 2024-03-09 12:47:24 | Verified Data Report | CSO – UnTreated | INNER NEW BEDFORD HARBOR | NEW BEDFORD | 992510.0 |
| 2023.0 | 17ebdfbc-0885-430e-86c4-c7d99117d6a9 | 2023-01-23 08:05:32 | Public Notification Report | CSO – UnTreated | CONNECTICUT R. | HOLYOKE | |
| 2022.0 | 3a8a58b2-4a81-48ff-beb8-feaaae539f77 | 2022-11-30 00:00:00 | Verified Data Report | CSO – UnTreated | OUTER NEW BEDFORD HARBOR | NEW BEDFORD | 660380.0 |
| 2025.0 | 0aa4db2a-a83f-49db-b5a5-d495328e0c0f | 2025-08-01 04:00:00 | Public Notification Report | CSO – UnTreated | MERRIMACK RIVER | LOWELL | |
| 2023.0 | 17f76214-30c5-4b06-97c4-69ca7c456c12 | 2023-07-16 12:36:42 | Public Notification Report | CSO – UnTreated | CONNECTICUT R. | SPRINGFIELD |