What was found in ZIP 06351
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 2625 µg/L 26% of the EPA limit 10000 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 2/2 | SYR4 |
| Nitrate | 2470 µg/L 25% of the EPA limit 10000 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 2/2 | SYR4 |
| Fluoride | 992 µg/L 25% of the EPA limit 4000 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 1/2 | SYR4 |
| Nitrite | 860 µg/L 86% of the EPA limit 1000 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 1/2 | SYR4 |
| Copper | 107.5 µg/L 8.3% of the EPA limit 1300 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019
Highest in the ZIP: 341.395 µg/L — JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 2/2 | SYR4 |
| TTHM | 115.47 µg/L 144% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 66.4 µg/L 111% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019
Highest in the ZIP: 75.24 µg/L — JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 2/2 | SYR4 |
| Chloroform | 50.5 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019
Highest in the ZIP: 70.12 µg/L — JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 40.35 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 32.9736 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Barium | 11 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019
Highest in the ZIP: 18.45 µg/L — JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 2/2 | SYR4 |
| Lead | 17.6 µg/L 117% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 7.65 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 3.33 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Selenium | 2.6 µg/L 5.2% of the EPA limit 50 µg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 0.8725 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2019
Highest in the ZIP: 1.8 µg/L — JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.55 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.09 pCi/L 22% of the EPA limit 5 pCi/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2017 | 2/2 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 0.7460 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Bromoform | 0.5950 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.4691 pCi/L 3.1% of the EPA limit 15 pCi/L Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2018 | 1/2 | SYR4 |
| 2,4-D | 0.1650 µg/L 0.2% of the EPA limit 70 µg/L Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2019 | 1/2 | SYR4 |
| PFOS | 0.0162 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2024 | 1/2 | UCMR-5 |
| PFHXS | 0.0125 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2024 | 1/2 | UCMR-5 |
| Pfba | 0.0121 µg/L No EPA limit set Highest in the ZIP: JEWETT CITY WATER COMPANY · 6,840 people · 2023 | 1/2 | UCMR-5 |
| PFOA | 0.0067 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0060 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2024 | 1/2 | UCMR-5 |
| Pfpea | 0.0039 µg/L No EPA limit set Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NORWICH PUBLIC UTILITIES · 36,163 people · 2025 | 2/2 | LCR |
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 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 06351
| Supplier | State | Population served |
|---|---|---|
| NORWICH PUBLIC UTILITIES | CT | 36,163 |
| JEWETT CITY WATER COMPANY | CT | 6,840 |
Frequently asked questions about ZIP 06351 tap water
Is the tap water in ZIP 06351 safe to drink?
EPA testing detected 30 contaminants across the water suppliers serving ZIP 06351. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 06351?
2 public water suppliers report EPA drinking-water monitoring for ZIP 06351. Each is listed above with its population served.
What contaminants are in ZIP 06351's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Nitrite, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.