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Tap water quality report

Shrewsbury, MA

EPA monitoring detected 26 contaminants across the 1 water supplier serving Shrewsbury. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
38,325
people served
26
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Shrewsbury's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2680 µg/L 27%
of the EPA limit 10000 µg/L
 1/1 SYR4
Fluoride
710 µg/L 18%
of the EPA limit 4000 µg/L
 1/1 SYR4
Barium
66.9 µg/L 3.3%
of the EPA limit 2000 µg/L
 1/1 SYR4
Copper
52 µg/L 4%
of the EPA limit 1300 µg/L
 1/1 SYR4
Chromium
36.1 µg/L 36%
of the EPA limit 100 µg/L
 1/1 SYR4
Nitrite
20 µg/L 2%
of the EPA limit 1000 µg/L
 1/1 SYR4
TTHM
16.1 µg/L 20%
of the EPA limit 80 µg/L
 1/1 SYR4
Dibromochloromethane
6.56 µg/L
No EPA limit set
 1/1 SYR4
Bromoform
6.23 µg/L
No EPA limit set
 1/1 SYR4
Arsenic
5 µg/L 50%
of the EPA limit 10 µg/L
 1/1 SYR4
Trichloroethylene
4.99 µg/L 100%
of the EPA limit 5 µg/L
 1/1 SYR4
Tetrachloroethylene
3.7 µg/L 74%
of the EPA limit 5 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
3 µg/L 5%
of the EPA limit 60 µg/L
 1/1 SYR4
Dibromoacetic Acid
2.6 µg/L
No EPA limit set
 1/1 SYR4
Bromodichloromethane
2.55 µg/L
No EPA limit set
 1/1 SYR4
Monochloroacetic Acid
2.1 µg/L
No EPA limit set
 1/1 SYR4
Picloram
1.9 µg/L 0.4%
of the EPA limit 500 µg/L
 1/1 SYR4
Chloroform
0.7400 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
0.6100 µg/L
No EPA limit set
 1/1 SYR4
cis-1,2-Dichloroethylene
0.5500 µg/L 0.8%
of the EPA limit 70 µg/L
 1/1 SYR4
PFOS
0.0056 µg/L
No EPA limit set
 1/1 UCMR-5
PFOA
0.0054 µg/L
No EPA limit set
 1/1 UCMR-5
Pfpea
0.0048 µg/L
No EPA limit set
 1/1 UCMR-5
PFBS
0.0043 µg/L
No EPA limit set
 1/1 UCMR-5
Pfhxa
0.0031 µg/L
No EPA limit set
 1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 1/1 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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Shrewsbury

SupplierPopulation served
SHREWSBURY WATER DEPARTMENT 38,325

Frequently asked questions about Shrewsbury tap water

Is Shrewsbury tap water safe to drink?

EPA testing detected 26 contaminants in the water serving Shrewsbury. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Shrewsbury?

1 public water supplier report drinking-water monitoring for Shrewsbury, Massachusetts to the EPA. Each is listed above with its population served.

What contaminants are in Shrewsbury's water?

The contaminants EPA monitoring detected in Shrewsbury include Nitrate, Fluoride, Barium, Copper, Chromium. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.