EPA Air · by county
Air-emissions sources in Middlesex County, Connecticut
- 120Facilities
Every stationary source in Middlesex County, Connecticut that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Middlesex County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Middlesex County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2025 — inspections 4
- 2023 — inspections 3
- 2021 — inspections 4
- 2020 — inspections 4
- 2019 — inspections 5
- 2018 — inspections 3
- 2017 — inspections 10
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| SUPERIOR COURT / MIDDLESEX DIST | Minor source | No |
| SUZIO CONCRETE CO, THE L | Minor source | No |
| THE MATTABASSETT DISTRICT | Minor source | Yes |
| THE ROBERT BARRETT COMPANY | Minor source | No |
| THE SMEDLEY COMPANY | Minor source | No |
| TILCON CONNECTICUT - OLD SAYBROOK PLANT | Synthetic minor source | No |
| TILCON CONNECTICUT - PORTLAND PLANT | Synthetic minor source | No |
| TILCON CONNECTICUT, INC | Minor source | No |
| TOJAK / AUTOMOTIVE DETAIL & REPAIRS | Minor source | No |
| TOWN AND COUNTRY AUTO GROUP | Minor source | No |
| TRIRAM CONNECTICUT, INC | Minor source | No |
| TUSCARORA PLASTICS, INC | Minor source | No |
| U S GYPSUM | Minor source | No |
| VALLEY REGIONAL HIGH SCHOOL | Minor source | No |
| VINAL R.V.T. HIGH SCHOOL | Minor source | No |
| WESLEYAN UNIVERSITY - BOILER PLANT | Synthetic minor source | No |
| WILLOWCREST APARTMENTS | Minor source | No |
| WILSON MIDDLE SCHOOL | Minor source | No |
| XAVIER HIGH SCHOOL | Minor source | No |
| YVON BEAUDOIN BUILDER, INC | Minor source | No |
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County as filed on the facility record. Figures from EPA’s ICIS-AIR download.