What was found in ZIP 01501
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 | 1990 µg/L 20% of the EPA limit 10000 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 1/2 | SYR4 |
| Fluoride | 690 µg/L 17% of the EPA limit 4000 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2018 | 1/2 | SYR4 |
| Barium | 290 µg/L 14% of the EPA limit 2000 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2018 | 1/2 | SYR4 |
| Copper | 137.45 µg/L 11% of the EPA limit 1300 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2018 | 1/2 | SYR4 |
| TTHM | 24.18 µg/L 30% of the EPA limit 80 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 89.17 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Chloroform | 5.445 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 66.76 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.9 µg/L 12% of the EPA limit 60 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 46.5 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Arsenic | 40.6 µg/L 406% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 0.5600 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 16.62 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 1.74 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 16.32 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 7.8 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 13.3 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 8.2 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 2/2 | SYR4 |
| Bromoform | 6.8 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 1.48 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019
Highest in the ZIP: 3.95 µg/L — ELM HILL WATER DISTRICT · 2,278 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 3.84 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 2/2 | SYR4 |
| Chromium | 2.9 µg/L 2.9% of the EPA limit 100 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2018 | 1/2 | SYR4 |
| 1,1-Dichloroethylene | 1.1 µg/L 16% of the EPA limit 7 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 0.9800 µg/L No EPA limit set Highest in the ZIP: ELM HILL WATER DISTRICT · 2,278 people · 2018 | 1/2 | SYR4 |
| 2,4-D | 0.1530 µg/L 0.2% of the EPA limit 70 µg/L Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2019 | 1/2 | SYR4 |
| PFOA | 0.0057 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2025 | 1/2 | UCMR-5 |
| PFOS | 0.0047 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2025 | 1/2 | UCMR-5 |
| Pfpea | 0.0038 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2025 | 1/2 | UCMR-5 |
| Pfhxa | 0.0031 µg/L No EPA limit set Main supplier: AUBURN WATER DISTRICT · 12,255 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: AUBURN WATER DISTRICT · 12,255 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 01501
| Supplier | State | Population served |
|---|---|---|
| AUBURN WATER DISTRICT | MA | 12,255 |
| ELM HILL WATER DISTRICT | MA | 2,278 |
Frequently asked questions about ZIP 01501 tap water
Is the tap water in ZIP 01501 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 01501. 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 01501?
2 public water suppliers report EPA drinking-water monitoring for ZIP 01501. Each is listed above with its population served.
What contaminants are in ZIP 01501's water?
EPA monitoring detected Nitrate, Fluoride, Barium, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.