EPA Air · by state
Air-emissions sources in Connecticut
- 2,703Facilities
Every source’s record in Connecticut
Each of the 2,635 operating major, synthetic minor and minor sources in Connecticut has a record page: its classification, its high-priority violation status, its compliance evaluations, violations and stack tests, and its enforcement actions and penalties. Each county below lists its own; or every source in Connecticut, A to Z.
By emissions classification in Connecticut
High-priority violations in Connecticut
26 sources in Connecticut carry a current high-priority Clean Air Act violation.
Counties in Connecticut
- Fairfield County 623
- Hartford County 762
- Litchfield County 156
- Middlesex County 120
- New Haven County 702
- New London County 161
- Tolland County 50
- Undetermined County 26
- Windham County 103
Industries in Connecticut
Sources are grouped by the first industry code on the facility record.
- NAICS 9999 682
- Educational services (NAICS 6111) 176
- Personal and laundry services (NAICS 8123) 141
- Repair and maintenance (NAICS 8111) 123
- Fabricated metal product manufacturing (NAICS 3328) 108
- Mining and quarrying (NAICS 2123) 72
- Real estate (NAICS 5311) 67
- Utilities (NAICS 2213) 54
- Nonmetallic mineral product manufacturing (NAICS 3273) 47
- Hospitals (NAICS 6221) 45
- Petroleum and coal products manufacturing (NAICS 3241) 42
- Utilities (NAICS 2211) 41
- Executive and legislative government (NAICS 9211) 36
- Fabricated metal product manufacturing (NAICS 3329) 36
- Educational services (NAICS 6113) 33
- Transportation equipment manufacturing (NAICS 3364) 33
- Miscellaneous manufacturing (NAICS 3399) 29
- Furniture and related product manufacturing (NAICS 3371) 29
- Fabricated metal product manufacturing (NAICS 3323) 28
- Paper manufacturing (NAICS 3222) 28
- Fabricated metal product manufacturing (NAICS 3327) 27
- Transit and ground passenger transportation (NAICS 4854) 26
- Justice, public order and safety (NAICS 9221) 26
- Plastics and rubber products manufacturing (NAICS 3261) 24
- Administration of housing and community development (NAICS 9251) 24
- Fabricated metal product manufacturing (NAICS 3321) 23
- Primary metal manufacturing (NAICS 3315) 23
- Machinery manufacturing (NAICS 3335) 22
- Electrical equipment and appliance manufacturing (NAICS 3359) 21
- Electrical equipment and appliance manufacturing (NAICS 3353) 19
- Administration of environmental programs (NAICS 9241) 18
- Insurance carriers and related activities (NAICS 5241) 18
- Computer and electronic product manufacturing (NAICS 3345) 18
- Printing and related support (NAICS 3231) 16
- Primary metal manufacturing (NAICS 3314) 16
- Chemical manufacturing (NAICS 3259) 15
- NAICS 4543 15
- Plastics and rubber products manufacturing (NAICS 3262) 13
- Computer and electronic product manufacturing (NAICS 3344) 13
- Chemical manufacturing (NAICS 3251) 13
- Miscellaneous manufacturing (NAICS 3391) 12
- Chemical manufacturing (NAICS 3255) 12
- Machinery manufacturing (NAICS 3332) 11
- Machinery manufacturing (NAICS 3339) 11
- Merchant wholesalers, nondurable goods (NAICS 4247) 11
- Chemical manufacturing (NAICS 3254) 11
- Wood product manufacturing (NAICS 3219) 11
- Fabricated metal product manufacturing (NAICS 3326) 10
- Primary metal manufacturing (NAICS 3312) 10
- Utilities (NAICS 2212) 10
- Waste management and remediation (NAICS 5622) 10
- Fabricated metal product manufacturing (NAICS 3322) 9
- Textile mills (NAICS 3133) 9
- Machinery manufacturing (NAICS 3333) 8
- Professional, scientific and technical services (NAICS 5413) 8
- Food manufacturing (NAICS 3118) 8
- Professional, scientific and technical services (NAICS 5417) 8
- Transportation equipment manufacturing (NAICS 3363) 8
- NAICS 4521 8
- Pipeline transportation (NAICS 4862) 7
- Merchant wholesalers, durable goods (NAICS 4239) 7
- Gasoline stations (NAICS 4471) 6
- Motor vehicle and parts dealers (NAICS 4411) 6
- Transit and ground passenger transportation (NAICS 4851) 6
- Nonmetallic mineral product manufacturing (NAICS 3279) 6
- Furniture and related product manufacturing (NAICS 3372) 6
- Transportation equipment manufacturing (NAICS 3366) 6
- Chemical manufacturing (NAICS 3252) 6
- Food manufacturing (NAICS 3119) 6
- Personal and laundry services (NAICS 8122) 6
- Chemical manufacturing (NAICS 3253) 6
- Waste management and remediation (NAICS 5621) 5
- Primary metal manufacturing (NAICS 3313) 5
- Religious, grantmaking and similar organizations (NAICS 8131) 5
- Specialty trade contractors (NAICS 2389) 5
- Pipeline transportation (NAICS 4869) 5
- Chemical manufacturing (NAICS 3256) 5
- Paper manufacturing (NAICS 3221) 5
- Educational services (NAICS 6115) 5
- Repair and maintenance (NAICS 8114) 4
- Electrical equipment and appliance manufacturing (NAICS 3351) 4
- Fabricated metal product manufacturing (NAICS 3324) 4
- Crop production (NAICS 1114) 4
- Heavy and civil engineering construction (NAICS 2373) 4
- Educational services (NAICS 6112) 4
- Waste management and remediation (NAICS 5629) 4
- Food manufacturing (NAICS 3115) 4
- Machinery manufacturing (NAICS 3334) 4
- Nursing and residential care facilities (NAICS 6233) 3
- Machinery manufacturing (NAICS 3331) 3
- Electrical equipment and appliance manufacturing (NAICS 3352) 3
- Nonmetallic mineral product manufacturing (NAICS 3272) 3
- Fabricated metal product manufacturing (NAICS 3325) 3
- Merchant wholesalers, durable goods (NAICS 4235) 3
- Computer and electronic product manufacturing (NAICS 3342) 3
- Hospitals (NAICS 6222) 3
- Merchant wholesalers, nondurable goods (NAICS 4246) 3
- Telecommunications (NAICS 5171) 3
- Support activities for transportation (NAICS 4884) 3
- Support activities for transportation (NAICS 4881) 3
- National security and international affairs (NAICS 9281) 3
- Machinery manufacturing (NAICS 3336) 3
- Rental and leasing services (NAICS 5321) 3
- Publishing industries (NAICS 5111) 3
- Primary metal manufacturing (NAICS 3311) 3
- Nonmetallic mineral product manufacturing (NAICS 3271) 3
- Professional, scientific and technical services (NAICS 5415) 3
Air-emissions inspections in Connecticut, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
High-priority air violations in Connecticut, by year
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity.
Air-emissions stack tests in Connecticut, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
Facilities
Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for state CT. It lists 2,703 facilities in CT, 2,677 facilities in nonattainment areas, and 58 major sources in nonattainment areas.