Complaint Date | | Status | | Case |
| | Closed | | (CAA-01-2019-0047) St. George's School |
| | Closed | | (CAA-01-2020-0003) Boro Sand and Stone Corp. |
| | Closed | | (CAA-01-2020-0005) Joseph's Gourmet Pasta Company |
| | Closed | | (CAA-01-2020-0024) Dead River Company and Green Mountain Railroad Corp. |
| | Closed | | (CAA-01-2020-0028) Shaw's Supermarkets, Inc. |
| | Closed | | (CAA-01-2020-0040) East Bay Company |
| | Closed | | (CAA-01-2020-0041) Coke Northeast |
| | Closed | | (CAA-01-2020-0042) Dartex Coatings, Inc. |
| | Closed | | (CAA-01-2020-0045) New England Industrial Uniform Rental Service, Inc. |
| | Closed | | (CAA-01-2020-0052) United Natural Foods, Inc. |
| | Closed | | (CAA-01-2020-0056) SMM New England Corporation |
| | Closed | | (CAA-01-2020-0058) Perkins Paper, Inc. |
| | Closed | | (CAA-01-2021-0002) Sealed Air Corporation |
| | Closed | | (CAA-01-2021-0012) Pier Fish Co, Inc. |
| | Closed | | (CAA-01-2021-0013) Quick Plug N.A., Inc. |
| | Closed | | (CAA-01-2021-0016) Calpine Corporation |
| | Closed | | (CAA-01-2021-0017) Franklin Processing, Inc. |
| | Closed | | (CAA-01-2021-0029) ITW Polymers |
| | Closed | | (CAA-01-2021-0035) WR Allen, Inc. |
| | Closed | | (CAA-01-2021-0036) Ben & Jerry's Homemade, Inc. |
| | Closed | | (CAA-01-2021-0042) Bake-N-Joy |
| | Closed | | (CAA-01-2021-0046) Mama Rosies |
| | Closed | | (CAA-01-2021-0048) Kent School Corporation |
| | Closed | | (CAA-01-2021-0049) Tate & Lyle Ingredients Americas, LLC |
| | Closed | | (CAA-01-2021-0053 ) Buckingham Browne & Nichols School |
| | Closed | | (CAA-01-2021-0059) Ragozzino Foods, Inc. |
| | Closed | | (CAA-01-2021-0070) GAC Chemical Corporation |
| | Closed | | (CAA-01-2021-0074 ) Green Mountain Power |
| | Active | | (CAA-01-2021-0075) Grafton & Upton Railroad |
| | Closed | | (CAA-01-2022-0005) Barnhardt Manufacturing Company |
| | Closed | | (CAA-01-2022-0009) Northford Ice Pavilion |
| | Closed | | (CAA-01-2022-0014) Central Maine Cold Storage, Inc. |
| | Closed | | (CAA-01-2022-0017) Costigan Chip, LLC |
| | Closed | | (CAA-01-2022-0021) A.T. Wall Company |
| | Closed | | (CAA-01-2022-0024) Crystal Ice Co., Inc. |
| | Closed | | (CAA-01-2022-0025) Penson & Co. |
| | Closed | | (CAA-01-2022-0026) Ed Burns Arena |
| | Closed | | (CAA-01-2022-0030) New England Warehousing Group, LLC |
| | Closed | | (CAA-01-2022-0032) Highlands Fuel Delivery LLC |
| | Closed | | (CAA-01-2022-0033) Highline Warren, LLC |
| | Closed | | (CAA-01-2022-0034 and .....) Greenfield Global USA, Inc. |
| | Closed | | (CAA-01-2022-0037) Excelitas Technologies Corp. |
| | Closed | | (CAA-01-2022-0038 and .....) Russell Apartments, LLC |
| | Active | | (CAA-01-2022-0041) AA Transportation Co., Inc. |
| | Closed | | (CAA-01-2022-0043) Trelleboard Coated Systems US, Inc. |
| | Closed | | (CAA-01-2022-0045) Spectrum Thermal Processing LLC. |
| | Closed | | (CAA-01-2022-0046) Northshire Civic Center |
| | Closed | | (CAA-01-2022-0047) Theodore Glynn Way LLC. |
| | Closed | | (CAA-01-2022-0049) Barber Foods |
| | Closed | | (CAA-01-2022-0050) Barber Foods, LLC |
| | Closed | | (CAA-01-2022-0051) Michael J. Connolly & Sons, Inc. |
| | Active | | (CAA-01-2022-0055) Snows Acquisition |
| | Closed | | (CAA-01-2022-0058) APS Technology, Inc. |
| | Active | | (CAA-01-2022-0063) Justin Parker d/b/a 21 Motorsports |
| | Closed | | (CAA-01-2022-0068) Diesel Fuel Systems, Inc. |
| | Closed | | (CAA-01-2023-0005 and .....) Maritime International, Inc. and Bridge Terminal, Inc. |
| | Closed | | (CAA-01-2023-0007 and .....) Maritime International, Inc. and Connecticut Freesers, Inc. |
| | Closed | | (CAA-01-2023-0016 and .....) Millard Wire Company |
| | Closed | | (CAA-01-2023-0019) Brookline Ice Company, LLC |
| | Closed | | (CAA-01-2023-0024) Pine Tree Propane, LLC - CAA-01-2023-0024 |
| | Closed | | (CAA-01-2023-0025) HP Hood LLC |
| | Closed | | (CAA-01-2023-0027) Autum Transportation, Inc. |
| | Closed | | (CAA-01-2023-0030) United Natural Foods, Inc. |
| | Closed | | (CAA-01-2023-0034) Bottling Group, LLC |
| | Closed | | (CAA-01-2023-0041) W.R. Cobb Company |
| | Active | | (CAA-01-2023-0049) Jasper Wyman & Son |
| | Closed | | (CAA-01-2023-0053) Seafreeze Limited |
| | Active | | (CAA-01-2023-0062) Heath Rogers d/b/a Maine Turbo Diesels |
| | Closed | | (CAA-01-2023-0066) Solenis, LLC - CAA-01-2023-0066 |
| | Closed | | (CAA-01-2023-0067) Astro Chemicals, Inc. |
| | Closed | | (CAA-01-2023-0068) Astro Chemicals, Inc. (Memorial Drive Facility) |
| | Closed | | (CAA-01-2023-0070) All Star |
| | Closed | | (CAA-01-2024-0010 and .....) Northern Wind, LLC |
| | Closed | | (CAA-01-2024-0025) Roberts Chemical Company, Inc. |
| | Closed | | (CAA-01-2024-0030) First Student, Inc. |
| | Closed | | (CERCLA-01-2009-0005) Britannia Street Site |
| | Closed | | (CERCLA-01-2009-0010) Great Lakes Container Corporation Superfund Site |
| | Closed | | (CERCLA-01-2009-0086) Centredale Manor Superfund Site |
| | Closed | | (CERCLA-01-2010-0019) Zonolite / W.R. Grace Superfund Site |
| | Closed | | (CERCLA-01-2010-0045) Emhart Industries, Inc, Centredale Manor Restoration Project Superfund Site |
| | Closed | | (CERCLA-01-2011-0012) Ely Copper Mine Superfund Site & Ely Mine Forest, Inc. |
| | Closed | | (CERCLA-01-2011-0033) Former Tombarello and Sons Property Site |
| | Closed | | (CERCLA-01-2014-0007) Town of Bennington, VT |
| | Closed | | (CERCLA-01-2014-0026) Leeds Metal Superfund Site, Maine Central Rail Road Company |
| | Closed | | (CERCLA-01-2015-0043) Chlor-Alkali Facility (Former) Superfund Site Fort James, LLC |
| | Closed | | (CERCLA-01-2015-0052) Peabody Street Asbestos |
| | Closed | | (CERCLA-01-2018-0013) New Hampshire Dioxane Site |
| | Closed | | (CERCLA-01-2018-0044 and .....) Twenty Five Commerce, Inc. |
| | Closed | | (CERCLA-01-2018-0047) Former Lawrence Metals Superfund Site |
| | Closed | | (CWA-01-2007-0017) Rymes Heating Oil, Inc. |
| | Closed | | (CWA-01-2008-0002) Chestnut Farms Development Corp. |
| | Closed | | (CWA-01-2008-0004) Crocker Technical Papers, Inc. |
| | Closed | | (CWA-01-2008-0012) C.B. Blair Development Corp. |
| | Closed | | (CWA-01-2008-0014) Bristol, RI |
| | Closed | | (CWA-01-2008-0021) Heanssler Oil Company, Inc. |
| | Closed | | (CWA-01-2008-0022) Murray Oil Company |
| | Closed | | (CWA-01-2008-0023) E.H. Perkins Construction, Inc. |
| | Closed | | (CWA-01-2008-0026) Saloomey Construction, Inc. |
| | Closed | | (CWA-01-2008-0033) Platinum Building & Design, Inc. |
| | Closed | | (CWA-01-2008-0051) High Pine Corporation |