What was found in ZIP 06473
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 | 3227.6 µg/L 32% of the EPA limit 10000 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Nitrate | 3102 µg/L 31% of the EPA limit 10000 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Fluoride | 1020 µg/L 26% of the EPA limit 4000 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019
Highest in the ZIP: 1064 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 2/2 | SYR4 |
| Nitrite | 442.2 µg/L 44% of the EPA limit 1000 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Barium | 246.8 µg/L 12% of the EPA limit 2000 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019
Highest in the ZIP: 318.35 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 2/2 | SYR4 |
| Copper | 270 µg/L 21% of the EPA limit 1300 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| TTHM | 81.905 µg/L 102% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019
Highest in the ZIP: 85.505 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 2/2 | SYR4 |
| Chloroform | 70.9 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019
Highest in the ZIP: 72.4 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 57.575 µg/L 96% of the EPA limit 60 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Lead | 44.2 µg/L 295% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 31.09 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 21.85 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 13.39 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019
Highest in the ZIP: 13.9 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 8.5 pCi/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 6.1 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3.2 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.549 pCi/L 31% of the EPA limit 5 pCi/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 1/2 | SYR4 |
| Chromium | 1.5 µg/L 1.5% of the EPA limit 100 µg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 1/2 | SYR4 |
| Bromoform | 0.7500 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019
Highest in the ZIP: 1.165 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 0.8000 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2019 | 1/2 | SYR4 |
| Arsenic | 0.6000 µg/L 6% of the EPA limit 10 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| 1,1,1-Trichloroethane | 0.5000 µg/L 0.3% of the EPA limit 200 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| 1,1,2-Trichloroethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| 1,1-Dichloroethylene | 0.5000 µg/L 7.1% of the EPA limit 7 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| 1,2,4-Trichlorobenzene | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| 1,2-Dichloroethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| 1,2-Dichloropropane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Benzene | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Chlorobenzene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Dichloromethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Ethylbenzene | 0.5000 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Styrene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Tetrachloroethylene | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Toluene | 0.5000 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Trichloroethylene | 0.5000 µg/L 10% of the EPA limit 5 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Vinyl Chloride | 0.5000 µg/L 25% of the EPA limit 2 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| cis-1,2-Dichloroethylene | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| O-Dichlorobenzene | 0.5000 µg/L 0.1% of the EPA limit 600 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| P-Dichlorobenzene | 0.5000 µg/L 0.7% of the EPA limit 75 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| trans-1,2-Dichloroethylene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| Beryllium, Total | 0.1000 µg/L 2.5% of the EPA limit 4 µg/L Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2019 | 1/2 | SYR4 |
| PFOS | 0.0107 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2024
Highest in the ZIP: 0.0139 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2025 | 2/2 | UCMR-5 |
| PFHXS | 0.0107 µg/L No EPA limit set Highest in the ZIP: WALLINGFORD WATER DEPARTMENT · 37,267 people · 2025 | 1/2 | UCMR-5 |
| PFOA | 0.0071 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0035 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2024
Highest in the ZIP: 0.0040 µg/L — WALLINGFORD WATER DEPARTMENT · 37,267 people · 2025 | 2/2 | UCMR-5 |
| Pfpea | 0.0031 µg/L No EPA limit set Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: REGIONAL WATER AUTHORITY · 418,900 people · 2026 | 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 06473
| Supplier | State | Population served |
|---|---|---|
| REGIONAL WATER AUTHORITY | CT | 418,900 |
| WALLINGFORD WATER DEPARTMENT | CT | 37,267 |
Frequently asked questions about ZIP 06473 tap water
Is the tap water in ZIP 06473 safe to drink?
EPA testing detected 48 contaminants across the water suppliers serving ZIP 06473. 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 06473?
2 public water suppliers report EPA drinking-water monitoring for ZIP 06473. Each is listed above with its population served.
What contaminants are in ZIP 06473's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Nitrite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.