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Tap water quality report

Greenfield, MA

EPA monitoring detected 12 contaminants across the 1 water supplier serving Greenfield. 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.

1
water supplier
17,768
people served
12
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Greenfield'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
491 µg/L 4.9%
of the EPA limit 10000 µg/L
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
TTHM
27.05 µg/L 34%
of the EPA limit 80 µg/L
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Chloroform
25.76 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
17.425 µg/L 29%
of the EPA limit 60 µg/L
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Trichloroacetic Acid
12.57 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Barium
9.925 µg/L 0.5%
of the EPA limit 2000 µg/L
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2017
1/1 SYR4
Dichloroacetic Acid
6.785 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Bromodichloromethane
4.028 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Dibromochloromethane
1.45 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Monochloroacetic Acid
1.16315 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Bromoform
0.5300 µg/L
No EPA limit set
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2019
1/1 SYR4
Lead
0.0062 mg/L 41%
of the EPA limit 0.0150 mg/L
Main supplier: GREENFIELD WATER DEPARTMENT · 17,768 people · 2023
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 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 Greenfield

SupplierPopulation served
GREENFIELD WATER DEPARTMENT 17,768

Frequently asked questions about Greenfield tap water

Is Greenfield tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Greenfield. 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 Greenfield?

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

What contaminants are in Greenfield's water?

The contaminants EPA monitoring detected in Greenfield include Nitrate, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid. 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.