EPA Air · stack tests by state and year
Air-emissions stack tests in Maine, 2025
- 131Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Maine during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Maine, 2025
- Somerset County 23
- Cumberland County 18
- Penobscot County 16
- Oxford County 15
- Washington County 14
- Androscoggin County 10
- Waldo County 7
- Hancock County 7
- Aroostook County 6
- York County 5
- Franklin County 3
Maine, other years
Air-emissions stack tests recorded in Maine, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-04-08 | SPRAGUE OPERATING RESOURCES LLC | SEARSPORT, Waldo, ME | Pass | State |
| 2025-04-03 | BUCKEYE TERMINALS, LLC | BANGOR, Penobscot, ME | Pass | State |
| 2025-04-02 | SPRAGUE OPERATING RESOURCES LLC | SOUTH PORTLAND, Cumberland, ME | Pass | State |
| 2025-04-02 | SOUTH PORTLAND TERMINAL LLC | SOUTH PORTLAND, Cumberland, ME | Pass | State |
| 2025-04-02 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | WESTBROOK, Cumberland, ME | Pass | State |
| 2025-04-01 | LIGNETICS OF MAINE, LLC | STRONG, Franklin, ME | Fail | State |
| 2025-03-28 | SPRAGUE OPERATING RESOURCES LLC | SOUTH PORTLAND, Cumberland, ME | Pass | State |
| 2025-03-28 | SPRAGUE OPERATING RESOURCES LLC | SOUTH PORTLAND, Cumberland, ME | Pass | State |
| 2025-03-28 | SHAW BROTHERS CONSTRUCTION, INC. | GORHAM, Cumberland, ME | Pass | State |
| 2025-03-25 | MAINEHEALTH | PORTLAND, Cumberland, ME | Pass | State |
| 2025-03-25 | NE RENEWABLE POWER WEST ENFIELD, LLC | WEST ENFIELD, Penobscot, ME | Pass | State |
| 2025-03-17 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2025-03-17 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2025-03-04 | ND PAPER INC. | RUMFORD, Oxford, ME | Pass | State |
| 2025-02-27 | ND PAPER INC. | RUMFORD, Oxford, ME | Pass | State |
| 2025-02-26 | ND PAPER INC. | RUMFORD, Oxford, ME | Pass | State |
| 2025-02-20 | LOUISIANA-PACIFIC CORPORATION | NEW LIMERICK, Aroostook, ME | Pass | State |
| 2025-02-12 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | T35 MD BPP, Hancock, ME | Pass | State |
| 2025-02-12 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | T35 MD BPP, Hancock, ME | Pass | State |
| 2025-02-11 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | T35 MD BPP, Hancock, ME | Pass | State |
| 2025-02-11 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | T35 MD BPP, Hancock, ME | Pass | State |
| 2025-02-06 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | ELIOT, York, ME | Pass | State |
| 2025-02-05 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | BREWER, Penobscot, ME | Pass | State |
| 2025-02-04 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | SEARSMONT, Waldo, ME | Pass | State |
| 2025-01-30 | LEPAGE BAKERIES CEDAR STREET, LLC | LEWISTON, Androscoggin, ME | Pass | State |
| 2025-01-23 | ND PAPER INC. | RUMFORD, Oxford, ME | Pass | State |
| 2025-01-17 | DANISCO USA INC. | ROCKLAND, Knox, ME | Pass | State |
| 2025-01-14 | TIMBERHP MADISON, LLC | MADISON, Somerset, ME | Fail | State |
| 2025-01-07 | WOODLAND PULP LLC — high-priority violation on file | BAILEYVILLE, TOWN OF, Washington, ME | Pass | State |
| 2025-01-06 | PORTSMOUTH NAVAL SHIPYARD | KITTERY, York, ME | Pass | State |
| 2025-01-04 | WOODLAND PULP LLC — high-priority violation on file | BAILEYVILLE, TOWN OF, Washington, ME | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.