What was found in ZIP 02632
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 | 4940 µg/L 49% of the EPA limit 10000 µg/L Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2019 | 2/2 | SYR4 |
| Nitrite | 440 µg/L 44% of the EPA limit 1000 µg/L Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2017 | 1/2 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2017 | 1/2 | SYR4 |
| Barium | 69.3 µg/L 3.5% of the EPA limit 2000 µg/L Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2017 | 2/2 | SYR4 |
| Copper | 27.25 µg/L 2.1% of the EPA limit 1300 µg/L Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2017
Highest in the ZIP: 43.55 µg/L — BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 2/2 | SYR4 |
| TTHM | 18 µg/L 23% of the EPA limit 80 µg/L Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 6.6 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Bromoform | 5.57 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 4.26 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 2.975 µg/L 5% of the EPA limit 60 µg/L Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Chloroform | 2.74 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.89 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 0.7480 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 0.6700 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 0.5600 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2019 | 1/2 | SYR4 |
| PFBS | 0.0040 µg/L No EPA limit set Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2025
Highest in the ZIP: 0.0182 µg/L — BARNSTABLE FIRE DISTRICT · 5,400 people · 2023 | 2/2 | UCMR-5 |
| Pfpea | 0.0075 µg/L No EPA limit set Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2025 | 2/2 | UCMR-5 |
| PFOS | 0.0071 µg/L No EPA limit set Highest in the ZIP: BARNSTABLE FIRE DISTRICT · 5,400 people · 2023 | 1/2 | UCMR-5 |
| Pfhxa | 0.0069 µg/L No EPA limit set Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2025 | 2/2 | UCMR-5 |
| PFOA | 0.0049 µg/L No EPA limit set Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2025 | 2/2 | UCMR-5 |
| PFHXS | 0.0031 µg/L No EPA limit set Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 people · 2025
Highest in the ZIP: 0.0036 µg/L — BARNSTABLE FIRE DISTRICT · 5,400 people · 2023 | 2/2 | UCMR-5 |
| Lead | 0.0024 mg/L 16% of the EPA limit 0.0150 mg/L Main supplier: CENTERVILLE OSTERVILLE MARSTONS MILLS WD · 50,000 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 02632
| Supplier | State | Population served |
|---|---|---|
| CENTERVILLE OSTERVILLE MARSTONS MILLS WD | MA | 50,000 |
| BARNSTABLE FIRE DISTRICT | MA | 5,400 |
Frequently asked questions about ZIP 02632 tap water
Is the tap water in ZIP 02632 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 02632. 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 02632?
2 public water suppliers report EPA drinking-water monitoring for ZIP 02632. Each is listed above with its population served.
What contaminants are in ZIP 02632's water?
EPA monitoring detected Nitrate, Nitrite, Fluoride, Barium, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.