Fairfield, CT
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Fairfield in Connecticut
TRI sites such as Tradebe Treatment & Recycling of Bridgeport LLC; King Industries Inc; Memry DBA Resonetics LLC; SDWIS systems such as AQUARION-EASTERN FAIRFIELD COUNTY; AQUARION-STAMFORD; DANBURY WATER DEPARTMENT; NPL sites such as Kellogg-Deering Well Field; Raymark Industries, Inc. anchor Fairfield, CT's EPA extract. Derived burden score 77/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Fairfield include AQUARION-EASTERN FAIRFIELD COUNTY; DANBURY WATER DEPARTMENT; AQUARION-GREENWICH, while Tradebe Treatment & Recycling of Bridgeport LLC leads reported TRI pounds among local Form R filers. AQS median AQI 42 / peak 154 in 2024.
Burden score 77/100 (High Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Fairfield -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Fairfield, CT: EPA TRI 2023 reporting year
Same facilities, both years
+95.1%
39 facilities that filed in 2022 and 2023
Whole inventory
+103.4%
145.6 thousand lb → 296.1 thousand lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Fairfield, CT's total reported releases rose from 145.6 thousand lb in 2022 to 284.1 thousand lb in 2023, based on EPA TRI filings.
- Fairfield, CT's off-site transfers rose from 65.7 thousand lb in 2022 to 219.4 thousand lb in 2023, based on EPA TRI filings.
- Fairfield, CT's water releases rose from 130 lb in 2022 to 420 lb in 2023, based on EPA TRI filings.
- Fairfield, CT's land releases fell from 1.6 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 248 (68%) | 97 | 18 | 154 |
| 2023 | 210 (58%) | 135 | 12 | 242 |
| 2022 | 223 (61%) | 120 | 20 | 156 |
| 2021 | 225 (62%) | 119 | 13 | 185 |
| 2020 | 217 (59%) | 136 | 12 | 161 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Connecticut, see the EPA's AirNow.gov.
Water Systems (134)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| AQUARION-EASTERN FAIRFIELD COUNTY | 351,756 | 1 |
| AQUARION-STAMFORD | 119,214 | 0 |
| DANBURY WATER DEPARTMENT | 62,055 | 2 |
| AQUARION-GREENWICH | 53,297 | 1 |
| SOUTH NORWALK ELECTRIC & WATER | 42,000 | 3 |
| TORRINGTON WATER COMPANY | 37,915 | 2 |
| AQUARION-DARIEN | 18,737 | 0 |
| AQUARION-PLAINVILLE REGIONAL | 18,231 | 0 |
| AQUARION-SIMSBURY REGIONAL | 14,691 | 0 |
| AQUARION-NEW MILFORD REGIONAL | 13,331 | 0 |
| AQUARION-VALLEY | 13,080 | 0 |
| AQUARION-MYSTIC | 10,788 | 0 |
| AQUARION-NEW CANAAN | 10,097 | 0 |
| BETHEL WATER DEPT | 9,507 | 3 |
| AQUARION-RIDGEFIELD | 7,476 | 1 |
| AQUARION-NEWTOWN REGIONAL | 6,054 | 0 |
| AQUARION-LITCHFIELD REGIONAL | 3,097 | 0 |
| FAIRFIELD HILLS | 2,610 | 2 |
| AQUARION-SALISBURY | 1,932 | 1 |
| AQUARION-NEW HARTFORD | 1,872 | 1 |
| AQUARION-NORTH CANAAN | 1,481 | 0 |
| AQUARION-MARLBOROUGH | 1,348 | 0 |
| CANDLEWOOD SHORES TAX DISTRICT | 1,315 | 0 |
| AQUARION-WOODBURY | 1,209 | 0 |
| AQUARION-EAST DERBY | 1,101 | 0 |
| AQUARION WATER COMPANY | 987 | 0 |
| AQUARION-RIDGEFIELD KNOLLS | 958 | 4 |
| AQUARION-NORFOLK | 913 | 1 |
| AQUARION-KENT | 817 | 0 |
| CLC OWNERS CORPORATION | 736 | 0 |
| LAKE WAUBEEKA ASSOCIATION | 712 | 0 |
| MEADOWS AT CROSS RIVER | 630 | 104 |
| AQUARION-BALL POND | 629 | 0 |
| AQUARION-SUFFIELD | 595 | 0 |
| BRUNSWICK SCHOOL (LOWER & LOWER MIDDLE) | 567 | 1 |
| CANDLEWOOD KNOLLS WATER AUTHORITY | 524 | 0 |
| STONE BRIDGE CENTER FOR HEALTH & REHAB | 504 | 1 |
| AQUARION-FALLS VILLAGE | 488 | 6 |
| AQUARION-LAKESIDE | 455 | 0 |
| AQUARION-OXFORD TOWNE CENTER | 449 | 0 |
| AQUARION-NEW FAIRFIELD | 406 | 0 |
| AQUARION-MEADOWBROOK | 396 | 0 |
| STONY HILL VILLAGE CONDOMINIUM ASSN | 392 | 0 |
| AQUARION-ARLINGTON ACRES | 392 | 1 |
| AQUA VISTA ASSOC, INC | 388 | 0 |
| KNOLLCREST TAX DISTRICT | 356 | 8 |
| AQUARION-PLEASURE VALLEY | 328 | 0 |
| AQUARION-CARMEN HILL | 322 | 1 |
| AQUARION-TIMBER TRAILS | 310 | 0 |
| AQUARION-POSSUM RIDGE | 307 | 0 |
| BEDROCK TOWERWOOD MOBILE HOME COMMUNITY | 300 | 0 |
| ARROWHEAD POINT HOMEOWNERS ASSN INC. | 296 | 0 |
| AQUARION-OAKWOOD ACRES | 286 | 0 |
| AQUARION-FOREST HILLS | 265 | 0 |
| AQUARION-INDIAN SPRING | 242 | 0 |
| CANDLE HILL MOBILE HOME PARK | 233 | 4 |
| AQUARION-JUDEA MAIN | 219 | 0 |
| AQUARION-CLEARVIEW HILLS | 215 | 0 |
| AQUARION-HOLLANDALE ESTATES | 200 | 1 |
| VALLEY PARK | 200 | 0 |
| AQUARION-EAST HAMPTON | 189 | 0 |
| BLUESTONE ACRES MHP | 180 | 0 |
| FENTON MOBILE ESTATES | 175 | 0 |
| GREENWOOD MOBILE HOME COURT | 175 | 0 |
| AQUARION-DEAN HEIGHTS | 162 | 1 |
| 55 SUGAR STREET | 158 | 3 |
| HAWTHORNE TERRACE ASSOC | 156 | 2 |
| WOODED HILLS MOBILE HOME PARK | 155 | 0 |
| AQUARION-KEN OAKS | 152 | 0 |
| AQUARION-TWIN OAKS | 152 | 0 |
| AQUARION-LEBANON | 149 | 0 |
| AQUARION-INDIAN FIELDS | 147 | 0 |
| BROOKFIELD HILLS CONDOMINIUM UNIT OWNERS | 144 | 6 |
| CANDLEWOOD ORCHARDS PROPERTY OWNERS CORP | 144 | 0 |
| SNUG HARBOR DEVELOPMENT CORP | 144 | 0 |
| AQUARION-TYLER LAKE | 142 | 0 |
| BETHANY MOBILE HOME PARK | 138 | 0 |
| AQUARION-PEARCE MANOR | 133 | 1 |
| AQUARION-HICKORY HILLS | 132 | 0 |
| AQUARION-VALLEY VIEW | 131 | 0 |
| LAKE LILLINONAH SHORES CONDOS | 130 | 8 |
| AQUARION-SCODON | 130 | 1 |
| ROCK TERRACE TRAILER PARK | 130 | 16 |
| LILLINONAH PARK ESTATES HOMEOWNERS ASSN | 128 | 3 |
| JOCKEYVILLE ESTATES II | 126 | 0 |
| AQUARION-BUTTERNUT | 124 | 0 |
| AQUARION-HAWKSTONE | 120 | 0 |
| AQUARION-BARNUM | 120 | 0 |
| PARK PLACE MHP | 120 | 0 |
| DANBURY WATER DEPT-RIDGEVIEW GARDENS | 116 | 0 |
| AQUARION-ROLLING RIDGE | 115 | 1 |
| NINIGRET REALTY | 109 | 0 |
| CORNELL HILLS ASSOC, INC | 108 | 2 |
| AQUARION-WEST SHORE | 100 | 0 |
| BREEZY KNOLL ASSOCIATION | 100 | 0 |
| WESTON WATER SUPPLY | 100 | 2 |
| RHINEBECK MOBILE HOME COMMUNITY | 100 | 0 |
| CRESTWOOD ESTATES | 100 | 2 |
| BOYD COMMUNITY | 100 | 0 |
| AQUARION-CORNWALL | 98 | 0 |
| DORCHESTER ESTATES | 87 | 0 |
| AQUARION-FIELDSTONE RIDGE | 84 | 0 |
| AQUARION-QUARRY RIDGE | 84 | 0 |
| AQUARION-LAUREL RIDGE | 80 | 0 |
| NORTHSTONE GARDENS | 79 | 3 |
| AQUARION-BERKSHIRE | 75 | 1 |
| WOODCREEK VILLAGE CONDOMINIUM ASSN, INC | 72 | 2 |
| ESSEX GARDENS | 72 | 2 |
| LAKESIDE MANOR APARTMENTS | 72 | 5 |
| AQUARION-WOODRICH VILLAGE | 72 | 0 |
| APPLE VALLEY VILLAGE | 70 | 0 |
| ADAMS CROSSING MOBILE HOME PARK | 70 | 0 |
| AQUARION-JUDEA DEPOT | 68 | 0 |
| AQUARION-MCKEON | 67 | 0 |
| CEDAR TERRACE PROP OWNERS ASSN | 66 | 5 |
| AQUARION-BIRCHES | 66 | 0 |
| AQUARION-INTERLAKEN | 64 | 0 |
| ROCKTREE APARTMENTS | 60 | 0 |
| ALPINE HEIGHTS TRAILER PARK | 60 | 0 |
| COUNTRY ACRES MOBILE HOME PARK | 60 | 0 |
| DELLA MOBILE ESTATES | 56 | 0 |
| BROOKVIEW WATER COMPANY | 55 | 1 |
| ELMWOOD COURT, LLC | 54 | 9 |
| BREEZY HILLS COMMUNITY | 51 | 0 |
| HOLLOWVILLE MOBILE HOME PARK | 50 | 0 |
| PINE TREE MOBILE HOME PARK | 44 | 0 |
| HILLSIDE MOBILE HOME PARK | 42 | 0 |
| 27 MAPLE DRIVE | 38 | 0 |
| BROOKFIELD HOUSING AUTHORITY | 37 | 2 |
| AQUARION-PARK GLEN | 37 | 0 |
| 39 HOP BROOK RD - APT COMPLEX | 36 | 7 |
| TASHUA VILLAGE ASSOCIATION, INC. | 35 | 0 |
| VEDDER PARK | 27 | 1 |
| WACCABUC FARMS INC. | 26 | 5 |
TRI Facilities (47)
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Kellogg-Deering Well Field | NPL Site | 39.92 |
| Raymark Industries, Inc. | NPL Site | 0.00 |
Cities in Fairfield (20)
Frequently Asked Questions
What is the environmental risk level in Fairfield, Connecticut? ▼
Are there Superfund sites in Fairfield? ▼
How many toxic release facilities are in Fairfield? ▼
What is the air quality in Fairfield? ▼
Is the drinking water safe in Fairfield? ▼
What environmental agencies cover Fairfield? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.