Tap WaterIndex

← Barnstable, MA

Tap water quality report

ZIP 02601 — Barnstable, MA

EPA monitoring across the 2 water suppliers serving ZIP 02601 in Barnstable, MA detected 29 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
40,400
people served
29
contaminants found

What was found in ZIP 02601

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
5800 µg/L 58%
of the EPA limit 10000 µg/L
 2/2 SYR4
Copper
604 µg/L 46%
of the EPA limit 1300 µg/L
 2/2 SYR4
Barium
123 µg/L 6.2%
of the EPA limit 2000 µg/L
 2/2 SYR4
Fluoride
80 µg/L 2%
of the EPA limit 4000 µg/L
 1/2 SYR4
TTHM
23.6 µg/L 30%
of the EPA limit 80 µg/L
 2/2 SYR4
Total Haloacetic Acids (HAA5)
10.3 µg/L 17%
of the EPA limit 60 µg/L
 2/2 SYR4
Dibromochloromethane
9.1 µg/L
No EPA limit set
 2/2 SYR4
Bromodichloromethane
8.3 µg/L
No EPA limit set
 2/2 SYR4
Bromoform
6.3 µg/L
No EPA limit set
 2/2 SYR4
Chloroform
4.5 µg/L
No EPA limit set
 2/2 SYR4
Monochloroacetic Acid
4.3 µg/L
No EPA limit set
 1/2 SYR4
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
 1/2 SYR4
Selenium
4 µg/L 8%
of the EPA limit 50 µg/L
 1/2 SYR4
Monobromoacetic Acid
3.9 µg/L
No EPA limit set
 2/2 SYR4
Dibromoacetic Acid
3.5 µg/L
No EPA limit set
 2/2 SYR4
Tetrachloroethylene
2.8 µg/L 56%
of the EPA limit 5 µg/L
 1/2 SYR4
Dichloroacetic Acid
2.2 µg/L
No EPA limit set
 2/2 SYR4
Trichloroacetic Acid
2.1 µg/L
No EPA limit set
 2/2 SYR4
cis-1,2-Dichloroethylene
2 µg/L 2.9%
of the EPA limit 70 µg/L
 1/2 SYR4
Trichloroethylene
0.6500 µg/L 13%
of the EPA limit 5 µg/L
 1/2 SYR4
Cadmium
0.2100 µg/L 4.2%
of the EPA limit 5 µg/L
 1/2 SYR4
Pfpea
0.0298 µg/L
No EPA limit set
 2/2 UCMR-5
PFBS
0.0182 µg/L
No EPA limit set
 1/2 UCMR-5
Pfba
0.0168 µg/L
No EPA limit set
 1/2 UCMR-5
PFOS
0.0071 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhxa
0.0065 µg/L
No EPA limit set
 2/2 UCMR-5
PFOA
0.0044 µg/L
No EPA limit set
 1/2 UCMR-5
PFHXS
0.0036 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0014 mg/L 9%
of the EPA limit 0.0150 mg/L
 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 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 02601

SupplierStatePopulation served
HYANNIS WATER SYSTEM, TOWN OF BARNSTABLE MA 35,000
BARNSTABLE FIRE DISTRICT MA 5,400

Frequently asked questions about ZIP 02601 tap water

Is the tap water in ZIP 02601 safe to drink?

EPA testing detected 29 contaminants across the water suppliers serving ZIP 02601. 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 02601?

2 public water suppliers report EPA drinking-water monitoring for ZIP 02601. Each is listed above with its population served.

What contaminants are in ZIP 02601's water?

EPA monitoring detected Nitrate, Copper, Barium, Fluoride, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.