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Tap water quality report

Westfield, MA

EPA monitoring detected 17 contaminants across the 2 water suppliers serving Westfield. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
41,594
people served
17
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Westfield's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2550 µg/L 26%
of the EPA limit 10000 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
Copper
1926.6 µg/L 148%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2018
1/2 SYR4
Barium
288.6 µg/L 14%
of the EPA limit 2000 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
TTHM
80.015 µg/L 100%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
2/2 SYR4
Chloroform
77.37 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
54.86 µg/L 91%
of the EPA limit 60 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
2/2 SYR4
Trichloroacetic Acid
31.5 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
2/2 SYR4
Dichloroacetic Acid
20.425 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
2/2 SYR4
Monochloroacetic Acid
9.32 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
Bromodichloromethane
5.63 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
Highest in the city: 5.92 µg/L — LIBERTY MANOR INC · 500 people · 2019
2/2 SYR4
Dibromochloromethane
2.31 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
2/2 SYR4
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.825 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
Bromoform
0.9400 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
Antimony, Total
0.2600 µg/L 4.3%
of the EPA limit 6 µg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2019
1/2 SYR4
Pfba
0.0055 µg/L
No EPA limit set
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 people · 2025
1/2 UCMR-5
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
Main supplier: WESTFIELD DPWWATER DIVISION · 41,094 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. 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 Westfield

SupplierPopulation served
WESTFIELD DPWWATER DIVISION 41,094
LIBERTY MANOR INC 500

Frequently asked questions about Westfield tap water

Is Westfield tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Westfield. 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 Westfield?

2 public water suppliers report drinking-water monitoring for Westfield, Massachusetts to the EPA. Each is listed above with its population served.

What contaminants are in Westfield's water?

The contaminants EPA monitoring detected in Westfield include Nitrate, Copper, Barium, TTHM, Chloroform. The full list, with the level at the main supplier 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.