What was found in Wolcott's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 10300 µg/L 103% of the EPA limit, in the worst sample — 10000 µg/L | 7/9 | SYR4 |
| Nitrate | 7400 µg/L 74% of the EPA limit 10000 µg/L | 7/9 | SYR4 |
| Copper | 4360 µg/L 335% of the EPA limit, in the worst sample — 1300 µg/L | 9/9 | SYR4 |
| Fluoride | 2320 µg/L 58% of the EPA limit 4000 µg/L | 7/9 | SYR4 |
| Lead | 858 µg/L 5720% of the EPA limit, in the worst sample — 15 µg/L | 9/9 | SYR4 |
| Nitrite | 448 µg/L 45% of the EPA limit 1000 µg/L | 3/9 | SYR4 |
| Barium | 398.4 µg/L 20% of the EPA limit 2000 µg/L | 7/9 | SYR4 |
| TTHM | 122.7 µg/L 153% of the EPA limit, in the worst sample — 80 µg/L | 4/9 | SYR4 |
| Chloroform | 98 µg/L No EPA limit set | 4/9 | SYR4 |
| Total Haloacetic Acids (HAA5) | 94 µg/L 157% of the EPA limit, in the worst sample — 60 µg/L | 4/9 | SYR4 |
| Antimony, Total | 50 µg/L 833% of the EPA limit, in the worst sample — 6 µg/L | 2/9 | SYR4 |
| Cyanide | 50 µg/L 25% of the EPA limit 200 µg/L | 2/9 | SYR4 |
| Trichloroacetic Acid | 50 µg/L No EPA limit set | 3/9 | SYR4 |
| Dibromochloromethane | 45 µg/L No EPA limit set | 4/9 | SYR4 |
| Dichloroacetic Acid | 40 µg/L No EPA limit set | 3/9 | SYR4 |
| Combined Uranium | 26 µg/L 87% of the EPA limit 30 µg/L | 5/9 | SYR4 |
| Bromodichloromethane | 24.6 µg/L No EPA limit set | 4/9 | SYR4 |
| 1,2,4-Trichlorobenzene | 24.4 µg/L 35% of the EPA limit 70 µg/L | 1/9 | SYR4 |
| Lithium | 22.2 µg/L No EPA limit set | 2/9 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 12 pCi/L 80% of the EPA limit 15 pCi/L | 4/9 | SYR4 |
| Monobromoacetic Acid | 11 µg/L No EPA limit set | 1/9 | SYR4 |
| Monochloroacetic Acid | 10.4 µg/L No EPA limit set | 3/9 | SYR4 |
| Gross Beta Particle Activity | 8.5 pCi/L No EPA limit set | 2/9 | SYR4 |
| Tetrachloroethylene | 8.16 µg/L 163% of the EPA limit, in the worst sample — 5 µg/L | 2/9 | SYR4 |
| Arsenic | 5 µg/L 50% of the EPA limit 10 µg/L | 3/9 | SYR4 |
| Chromium | 5 µg/L 5% of the EPA limit 100 µg/L | 4/9 | SYR4 |
| Combined Radium (-226 And -228) | 3.67 pCi/L 73% of the EPA limit 5 pCi/L | 7/9 | SYR4 |
| Bromoform | 3.3 µg/L No EPA limit set | 3/9 | SYR4 |
| Dibromoacetic Acid | 2.7 µg/L No EPA limit set | 2/9 | SYR4 |
| Toxaphene | 2.2 µg/L 73% of the EPA limit 3 µg/L | 1/9 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L | 1/9 | SYR4 |
| Thallium, Total | 1 µg/L 50% of the EPA limit 2 µg/L | 1/9 | SYR4 |
| 1,1,1-Trichloroethane | 0.5000 µg/L 0.3% of the EPA limit 200 µg/L | 1/9 | SYR4 |
| 1,1,2-Trichloroethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| 1,1-Dichloroethylene | 0.5000 µg/L 7.1% of the EPA limit 7 µg/L | 1/9 | SYR4 |
| 1,2-Dichloroethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| 1,2-Dichloropropane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| Benzene | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| Chlorobenzene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L | 1/9 | SYR4 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| Dichloromethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| Ethylbenzene | 0.5000 µg/L 0.1% of the EPA limit 700 µg/L | 1/9 | SYR4 |
| Styrene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L | 1/9 | SYR4 |
| Toluene | 0.5000 µg/L 0.1% of the EPA limit 1000 µg/L | 1/9 | SYR4 |
| Trichloroethylene | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| Vinyl Chloride | 0.5000 µg/L 25% of the EPA limit 2 µg/L | 1/9 | SYR4 |
| cis-1,2-Dichloroethylene | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L | 1/9 | SYR4 |
| O-Dichlorobenzene | 0.5000 µg/L 0.1% of the EPA limit 600 µg/L | 1/9 | SYR4 |
| P-Dichlorobenzene | 0.5000 µg/L 0.7% of the EPA limit 75 µg/L | 1/9 | SYR4 |
| trans-1,2-Dichloroethylene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L | 1/9 | SYR4 |
| 2,4,5-TP | 0.4400 µg/L 0.9% of the EPA limit 50 µg/L | 1/9 | SYR4 |
| Beryllium, Total | 0.3000 µg/L 7.5% of the EPA limit 4 µg/L | 2/9 | SYR4 |
| Cadmium | 0.3000 µg/L 6% of the EPA limit 5 µg/L | 1/9 | SYR4 |
| 2,4-D | 0.2200 µg/L 0.3% of the EPA limit 70 µg/L | 1/9 | SYR4 |
| Methoxychlor | 0.2200 µg/L 0.5% of the EPA limit 40 µg/L | 1/9 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 1/9 | SYR4 |
| Asbestos | 0.1700 MFL 2.4% of the EPA limit 7 MFL | 1/9 | SYR4 |
| Bhc-Gamma | 0.0440 µg/L 22% of the EPA limit 0.2000 µg/L | 1/9 | SYR4 |
| Endrin | 0.0220 µg/L 1.1% of the EPA limit 2 µg/L | 1/9 | SYR4 |
| PFOS | 0.0107 µg/L No EPA limit set | 3/9 | UCMR-5 |
| PFOA | 0.0080 µg/L No EPA limit set | 3/9 | UCMR-5 |
| Lead | 0.0056 mg/L 37% of the EPA limit 0.0150 mg/L | 9/9 | LCR |
| Pfba | 0.0050 µg/L No EPA limit set | 1/9 | UCMR-5 |
| PFBS | 0.0045 µg/L No EPA limit set | 3/9 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set | 3/9 | UCMR-5 |
| Pfhxa | 0.0040 µg/L No EPA limit set | 2/9 | UCMR-5 |
| Pfhpa | 0.0030 µg/L No EPA limit set | 1/9 | UCMR-5 |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Wolcott
| Supplier | Population served |
|---|---|
| REGIONAL WATER AUTHORITY | 418,900 |
| WATERBURY WATER DEPARTMENT | 107,271 |
| SOUTHINGTON WATER DEPARTMENT | 43,069 |
| WOLCOTT WATER DEPARTMENT | 2,550 |
| ARROWHEAD BY THE LAKE ASSOCIATION, INC. | 288 |
| COUNTRYSIDE APARTMENTS | 218 |
| AQUARION-CLEARVIEW HILLS | 215 |
| LAKE HILLS VILLAGE CONDOMINIUMS | 102 |
| AQUARION-WOODRICH VILLAGE | 72 |
Frequently asked questions about Wolcott tap water
Is Wolcott tap water safe to drink?
EPA testing detected 67 contaminants in the water serving Wolcott. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Wolcott?
9 public water suppliers report drinking-water monitoring for Wolcott, Connecticut to the EPA. Each is listed above with its population served.
What contaminants are in Wolcott's water?
The contaminants EPA monitoring detected in Wolcott include Nitrate-Nitrite, Nitrate, Copper, Fluoride, Lead. The full list, with the highest level found and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.