Tolland, CT
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Tolland in Connecticut
Tolland, CT is tracked across three EPA datasets covering 5 Toxics Release Inventory (TRI) facilities, 34 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 32/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 57.6K lbs of reported toxic releases under EPCRA Section 313, while 21 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 37 and a peak AQI of 156 in 2024, with 90% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 184 (90%) | 16 | 4 | 156 |
| 2023 | 178 (84%) | 31 | 2 | 156 |
| 2022 | 187 (90%) | 19 | 2 | 122 |
| 2021 | 170 (85%) | 30 | 1 | 101 |
| 2020 | 192 (93%) | 14 | 0 | 93 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 (34)
| System | Population | Violations |
|---|---|---|
| UNIVERSITY OF CONNECTICUT - MAIN CAMPUS | 27,199 | 0 |
| WINDHAM WATER WORKS | 21,214 | 0 |
| TOLLAND WATER DEPARTMENT | 1,251 | 0 |
| WOODHAVEN APARTMENTS | 489 | 1 |
| VERNON VILLAGE INC. | 430 | 1 |
| STAFFORD HOLLOW WATER ASSOCIATION | 429 | 0 |
| GQC WELL COMMISSION | 360 | 1 |
| WILLINGTON SENIOR CENTER & HOUSING | 327 | 0 |
| KNOLLWOOD APARTMENTS | 312 | 2 |
| WALDEN APARTMENTS | 276 | 1 |
| WOODLAND SUMMIT COMMUNITY WATER ASSN | 216 | 8 |
| TOLLAND WATER DEPT - TORRY ROAD | 204 | 10 |
| CARRIAGE HOUSE APARTMENTS | 196 | 0 |
| BAXTER FARMS COMMUNITY WATER ASSOC | 175 | 0 |
| TWIN HILLS WATER DISTRICT | 156 | 8 |
| MAPLEWOOD-MILLBROOK APARTMENTS | 153 | 4 |
| CHELSEA COMMON CONDOMINIUM ASSOCIATION | 126 | 1 |
| CLUB HOUSE APARTMENTS | 115 | 1 |
| COVENTRY HOUSING AUTHORITY-LOWER SYSTEM | 80 | 0 |
| COVENTRY HOUSING AUTHORITY-UPPER SYSTEM | 80 | 0 |
| NORTH WILLINGTON VILLAGE CONDO ASSOC. | 66 | 1 |
| 890 BOSTON TURNPIKE | 60 | 2 |
| EASTVIEW KOZLEY WATER ASSOCIATION | 60 | 0 |
| SOUTHRIDGE PARK APARTMENTS | 50 | 1 |
| SAFE HARBOR, INC. | 50 | 3 |
| COOK DRIVE ASSOCIATION | 49 | 1 |
| WHISPERING HILLS, LLC - WELL D SYSTEM | 48 | 1 |
| SUNSET APARTMENTS LLC | 46 | 3 |
| HEBRON ARMS APARTMENTS | 39 | 5 |
| HIGH MEADOW | 38 | 2 |
| WOODLAND TERRACE | 27 | 0 |
| HOP RIVER HOMES | 26 | 2 |
| DARTMOUTH VILLAGE ELDERLY HOUSING | 25 | 0 |
| VILLAGE AT CRYSTAL SPRINGS | 25 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Simoniz USA Inc. | 39.2K lbs |
| 2 | Ttm Printed Circuit Group - Stafford Div | 11.1K lbs |
| 3 | Syn-Mar Products Inc. | 6.3K lbs |
| 4 | Ttm Printed Circuit Group | 985 lbs |
| 5 | Ttm Printed Circuit Group Mult Ilayer Stafford Div | 122 lbs |
Cities in Tolland (5)
Frequently Asked Questions
What is the environmental risk level in Tolland, Connecticut? ▼
Are there Superfund sites in Tolland? ▼
How many toxic release facilities are in Tolland? ▼
What is the air quality in Tolland? ▼
Is the drinking water safe in Tolland? ▼
What environmental agencies cover Tolland? ▼
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.