EPA Air · stack tests by state and year
Air-emissions stack tests in Connecticut, 2022
- 115Stack 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 Connecticut during 2022; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Connecticut, 2022
- New Haven County 29
- Hartford County 23
- Fairfield County 15
- Middlesex County 12
- Windham County 11
- New London County 11
- Undetermined County 7
- Litchfield County 5
Connecticut, other years
Air-emissions stack tests recorded in Connecticut, 2022
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2022-12-21 | HARTFORD STEAM - 60 COLUMBUS | HARTFORD, Hartford, CT | Pass | State |
| 2022-12-20 | MONTVILLE POWER LLC | CONNECTICUT, Undetermined, CT | Pass | State |
| 2022-12-20 | MONTVILLE POWER LLC | CONNECTICUT, Undetermined, CT | Pass | State |
| 2022-12-12 | COVIDIEN LP | NORTH HAVEN, New Haven, CT | Pass | State |
| 2022-12-07 | MONTVILLE POWER LLC | CONNECTICUT, Undetermined, CT | Fail | State |
| 2022-12-01 | IROQUOIS - MILFORD COMPRESSOR STATION | MILFORD, New Haven, CT | Pass | State |
| 2022-11-30 | CONNECTICUT JET POWER - COS COB STATION | GREENWICH, Fairfield, CT | Pass | State |
| 2022-11-29 | IROQUOIS - MILFORD COMPRESSOR STATION | MILFORD, New Haven, CT | Pass | State |
| 2022-11-29 | UNIVERSITY OF CONNECTICUT STORRS CAMPUS | MANSFIELD DEPOT, Tolland, CT | Pass | State |
| 2022-11-28 | UNIVERSITY OF CONNECTICUT STORRS CAMPUS | MANSFIELD DEPOT, Tolland, CT | Pass | State |
| 2022-11-22 | NORWICH / WPCF | NORWICH, New London, CT | Fail | State |
| 2022-11-18 | GE STEAM POWER, INC. | BLOOMFIELD, Hartford, CT | Pass | State |
| 2022-11-16 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | HARTFORD, Hartford, CT | Pass | State |
| 2022-11-09 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | HARTFORD, Hartford, CT | Pass | State |
| 2022-11-03 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | HARTFORD, Hartford, CT | Pass | State |
| 2022-10-24 | YALE UNIVERSITY / CENTRAL POWER PLANT | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-10-19 | NAUGATUCK WPCA/POTW | NAUGATUCK (HISTORICAL), New Haven, CT | Pass | State |
| 2022-10-18 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2022-10-13 | ALGONQUIN GAS TRANSMISSION, LLC - CHAPLIN COMPRESSOR STATION | CHAPLIN, Windham, CT | Pass | State |
| 2022-10-05 | P I LIQUIDATING, INC. | PROSPECT, New Haven, CT | Pass | State |
| 2022-10-03 | URBAN MINING CT LLC | BEACON FALLS, New Haven, CT | Fail | State |
| 2022-09-30 | REWORLD BRISTOL, INC. | BRISTOL, Hartford, CT | Pass | State |
| 2022-09-26 | REWORLD BRISTOL, INC. | BRISTOL, Hartford, CT | Pass | State |
| 2022-09-21 | YALE UNIVERSITY, SCHOOL OF MEDICINE PREMISES | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-09-21 | EAST SHORE WATER POLL ABATEMENT FACILITY | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-09-20 | PORCELEN SPECRAIL LTD CT LLC — high-priority violation on file | HAMDEN, New Haven, CT | Pass | State |
| 2022-09-20 | YALE UNIVERSITY, SCHOOL OF MEDICINE PREMISES | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-09-20 | YALE UNIVERSITY, SCHOOL OF MEDICINE PREMISES | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-09-15 | GALASSO MATERIALS, LLC | EAST GRANBY, Hartford, CT | Pass | State |
| 2022-09-13 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-09-13 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-09-12 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-09-11 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-08-30 | AHLSTROM POWER WINDSOR LOCKS, LLC — high-priority violation on file | WINDSOR LOCKS, Hartford, CT | Pass | State |
| 2022-08-24 | ALGONQUIN GAS TRANSMISSION, LLC - CHAPLIN COMPRESSOR STATION | CHAPLIN, Windham, CT | Pass | State |
| 2022-08-23 | ALGONQUIN GAS TRANSMISSION, LLC - CHAPLIN COMPRESSOR STATION | CHAPLIN, Windham, CT | Pass | State |
| 2022-08-23 | ALGONQUIN GAS TRANSMISSION, LLC - CHAPLIN COMPRESSOR STATION | CHAPLIN, Windham, CT | Pass | State |
| 2022-08-18 | SIKORSKY AIRCRAFT - MAIN PLANT | STRATFORD, Fairfield, CT | Pass | State |
| 2022-08-11 | NORWALK HOSPITAL ASSOCIATION | NORWALK, Fairfield, CT | Pass | State |
| 2022-08-10 | O&G INDUSTRIES, INC. - SOUTHBURY QUARRY | SOUTHBURY, New Haven, CT | Pass | State |
| 2022-08-09 | O&G INDUSTRIES, INC. | NEW MILFORD, Litchfield, CT | Pass | State |
| 2022-08-08 | O & G INDUSTRIES - BRIDGEPORT PLANT — high-priority violation on file | BRIDGEPORT, Fairfield, CT | Pass | State |
| 2022-08-04 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-08-01 | BRADLEY INTERNATIONAL AIRPORT / AMERESCO SELECT, INC. | WINDSOR LOCKS, Hartford, CT | Fail | State |
| 2022-07-20 | REWORLD CONNECTICUT COMPANY — high-priority violation on file | PRESTON, New London, CT | Pass | State |
| 2022-07-19 | REWORLD CONNECTICUT COMPANY — high-priority violation on file | PRESTON, New London, CT | Pass | State |
| 2022-07-19 | FRITO-LAY, INC. | DAYVILLE, Windham, CT | Pass | State |
| 2022-07-14 | WHEELABRATOR LISBON INC. | CONNECTICUT, Undetermined, CT | Pass | State |
| 2022-07-13 | WHEELABRATOR LISBON INC. | CONNECTICUT, Undetermined, CT | Pass | State |
| 2022-07-12 | FAIRFIELD UNIVERSITY | FAIRFIELD, Fairfield, CT | Pass | State |
| 2022-07-11 | NORWALK HOSPITAL ASSOCIATION | NORWALK, Fairfield, CT | Fail | State |
| 2022-07-06 | U S NAVAL SUBMARINE BASE — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-07-05 | U S NAVAL SUBMARINE BASE — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-07-01 | ITW GRAPHICS | MANCHESTER, Hartford, CT | Pass | State |
| 2022-06-29 | THE MATTABASSETT DISTRICT — high-priority violation on file | CROMWELL, Middlesex, CT | Pass | State |
| 2022-06-15 | O & G INDUSTRIES, INC | MILFORD, New Haven, CT | Pass | State |
| 2022-06-15 | GB II NEW HAVEN, LLC - NEW HAVEN HARBOR STATION | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-06-15 | FORT HILL AG GRID, LLC | THOMPSON, Windham, CT | Fail | State |
| 2022-06-14 | GB II NEW HAVEN, LLC - NEW HAVEN HARBOR STATION | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-06-13 | GB II NEW HAVEN, LLC - NEW HAVEN HARBOR STATION | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-06-08 | SPARTECH, L.L.C. | STAMFORD, Fairfield, CT | Pass | State |
| 2022-06-07 | WESLEYAN UNIVERSITY - BOILER PLANT | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-06-07 | TILCON CONNECTICUT/ NORTH BRANFORD PLANT | NORTH BRANFORD, New Haven, CT | Pass | State |
| 2022-06-03 | MONTVILLE POWER LLC | CONNECTICUT, Undetermined, CT | Pass | State |
| 2022-05-20 | CPV TOWANTIC, LLC | OXFORD, New Haven, CT | Pass | State |
| 2022-05-20 | CPV TOWANTIC, LLC | OXFORD, New Haven, CT | Pass | State |
| 2022-05-05 | WHEELABRATOR BRIDGEPORT LP | BRIDGEPORT, Fairfield, CT | Pass | State |
| 2022-05-05 | BRADLEY INTERNATIONAL AIRPORT / AMERESCO SELECT, INC. | WINDSOR LOCKS, Hartford, CT | Fail | State |
| 2022-05-04 | WHEELABRATOR BRIDGEPORT LP | BRIDGEPORT, Fairfield, CT | Pass | State |
| 2022-05-03 | WHEELABRATOR BRIDGEPORT LP | BRIDGEPORT, Fairfield, CT | Pass | State |
| 2022-05-03 | ALGONQUIN GAS TRANSMISSION, LLC - CROMWELL COMPRESSOR STATION | CROMWELL, Middlesex, CT | Pass | State |
| 2022-04-22 | RAWSON MATERIALS, PLANT NO. 2 | PUTNAM, Windham, CT | Pass | State |
| 2022-04-14 | U S NAVAL SUBMARINE BASE — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-04-08 | FORT HILL AG GRID, LLC | THOMPSON, Windham, CT | Pass | State |
| 2022-04-06 | IROQUOIS PIPELINE OPERATING COMPANY - BROOKFIELD COMPRESSOR STATION | BROOKFIELD, Fairfield, CT | Pass | State |
| 2022-04-05 | IROQUOIS PIPELINE OPERATING COMPANY - BROOKFIELD COMPRESSOR STATION | BROOKFIELD, Fairfield, CT | Pass | State |
| 2022-04-02 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-03-23 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | EAST HARTFORD, Hartford, CT | Pass | State |
| 2022-03-18 | LAKE ROAD GENERATING COMPANY LP | KILLINGLY CENTER, Windham, CT | Pass | State |
| 2022-03-18 | LAKE ROAD GENERATING COMPANY LP | KILLINGLY CENTER, Windham, CT | Pass | State |
| 2022-03-18 | LAKE ROAD GENERATING COMPANY LP | KILLINGLY CENTER, Windham, CT | Pass | State |
| 2022-03-17 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | EAST HARTFORD, Hartford, CT | Pass | State |
| 2022-03-17 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2022-03-17 | ELECTRIC BOAT CORPORATION — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-03-17 | ELECTRIC BOAT CORPORATION — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-03-16 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | EAST HARTFORD, Hartford, CT | Pass | State |
| 2022-03-16 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2022-03-16 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2022-03-16 | RAND-WHITNEY CONTAINER BOARD LP | MONTVILLE, TOWN OF, New London, CT | Pass | State |
| 2022-03-15 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-03-15 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2022-03-15 | ELECTRIC BOAT CORPORATION — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-03-15 | ELECTRIC BOAT CORPORATION — high-priority violation on file | GROTON (HISTORICAL), New London, CT | Pass | State |
| 2022-03-14 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2022-03-09 | NORWALK HOSPITAL ASSOCIATION | NORWALK, Fairfield, CT | Fail | State |
| 2022-02-24 | YALE UNIVERSITY / CENTRAL POWER PLANT | NEW HAVEN, New Haven, CT | Pass | State |
| 2022-02-24 | MONTVILLE POWER LLC | CONNECTICUT, Undetermined, CT | Pass | State |
| 2022-02-10 | PEPPERIDGE FARM, INC | BLOOMFIELD, Hartford, CT | Pass | State |
| 2022-02-08 | HOTCHKISS SCHOOL | LAKEVILLE, Litchfield, CT | Pass | State |
| 2022-02-08 | HOTCHKISS SCHOOL | LAKEVILLE, Litchfield, CT | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.