What was found in ZIP 02543
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 | 1476 µg/L 15% of the EPA limit 10000 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 2/2 | SYR4 |
| TTHM | 85.04 µg/L 106% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Copper | 81.8 µg/L 6.3% of the EPA limit 1300 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2018 | 2/2 | SYR4 |
| Chloroform | 63.915 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 55.065 µg/L 92% of the EPA limit 60 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Barium | 39.2 µg/L 2% of the EPA limit 2000 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 23.68 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 23 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 18.4 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 7.85 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 4.3325 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Tetrachloroethylene | 4.179 µg/L 84% of the EPA limit 5 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 3.5355 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.861 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Bromoform | 1.855 µg/L No EPA limit set Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Bromate | 1.6 µg/L 16% of the EPA limit 10 µg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L Main supplier: FALMOUTH WATER DEPT · 97,551 people · 2025 | 1/2 | 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 02543
| Supplier | State | Population served |
|---|---|---|
| FALMOUTH WATER DEPT | MA | 97,551 |
| UPPER CAPE REGIONAL WATER COOPERATIVE | MA | 56,250 |
Frequently asked questions about ZIP 02543 tap water
Is the tap water in ZIP 02543 safe to drink?
EPA testing detected 17 contaminants across the water suppliers serving ZIP 02543. 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 02543?
2 public water suppliers report EPA drinking-water monitoring for ZIP 02543. Each is listed above with its population served.
What contaminants are in ZIP 02543's water?
EPA monitoring detected Nitrate, TTHM, Copper, Chloroform, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.