What was found in ZIP 04021
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 2100 µg/L 21% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 1900 µg/L 19% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| Fluoride | 880 µg/L 22% of the EPA limit 4000 µg/L | 1/2 | SYR4 |
| Copper | 563 µg/L 43% of the EPA limit 1300 µg/L | 2/2 | SYR4 |
| Combined Uranium | 200 µg/L 667% of the EPA limit, in the worst sample — 30 µg/L | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 17 µg/L 28% of the EPA limit 60 µg/L | 1/2 | SYR4 |
| Lead | 14.5 µg/L 97% of the EPA limit 15 µg/L | 1/2 | SYR4 |
| Barium | 6.5 µg/L 0.3% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.23 pCi/L 28% of the EPA limit 15 pCi/L | 1/2 | SYR4 |
| TTHM | 3 µg/L 3.8% of the EPA limit 80 µg/L | 2/2 | SYR4 |
| Chromium | 1.9 µg/L 1.9% of the EPA limit 100 µg/L | 1/2 | SYR4 |
| Dibromochloromethane | 1.9 µg/L No EPA limit set | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.347 pCi/L 27% of the EPA limit 5 pCi/L | 1/2 | SYR4 |
| Bromoform | 1.3 µg/L No EPA limit set | 1/2 | SYR4 |
| Bromodichloromethane | 1.1 µg/L No EPA limit set | 1/2 | SYR4 |
| Arsenic | 0.8700 µg/L 8.7% of the EPA limit 10 µg/L | 1/2 | SYR4 |
| Pfhxa | 0.0098 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0095 mg/L 63% of the EPA limit 0.0150 mg/L | 2/2 | LCR |
| PFOA | 0.0092 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfpea | 0.0089 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfba | 0.0068 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfhpa | 0.0045 µg/L No EPA limit set | 1/2 | 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.
Water suppliers serving ZIP 04021
| Supplier | State | Population served |
|---|---|---|
| PORTLAND WATER DISTRICT-GREATER | ME | 135,068 |
| YARMOUTH WATER DISTRICT | ME | 8,000 |
Frequently asked questions about ZIP 04021 tap water
Is the tap water in ZIP 04021 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 04021. 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 04021?
2 public water suppliers report EPA drinking-water monitoring for ZIP 04021. Each is listed above with its population served.
What contaminants are in ZIP 04021's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Combined Uranium, and others across this ZIP's suppliers. The full list with levels and sources is above.