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Tap water quality report

Deerfield, MA

EPA monitoring detected 17 contaminants across the 4 water suppliers serving Deerfield. 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.

4
water suppliers
5,570
people served
17
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Deerfield'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
120 µg/L 1.2%
of the EPA limit 10000 µg/L
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
Highest in the city: 4500 µg/L — DEERFIELD FIRE DISTRICT · 1,300 people · 2019
3/4 SYR4
Copper
274 µg/L 21%
of the EPA limit 1300 µg/L
Highest in the city: PAN AM SOUTHERN RAILROAD · 120 people · 2018
1/4 SYR4
Barium
159.75 µg/L 8%
of the EPA limit 2000 µg/L
Highest in the city: DEERFIELD FIRE DISTRICT · 1,300 people · 2017
2/4 SYR4
TTHM
73.9 µg/L 92%
of the EPA limit 80 µg/L
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
3/4 SYR4
Chloroform
69.79 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
3/4 SYR4
Total Haloacetic Acids (HAA5)
53.6 µg/L 89%
of the EPA limit 60 µg/L
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
3/4 SYR4
Trichloroacetic Acid
34.445 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
2/4 SYR4
Dichloroacetic Acid
16.065 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
1/4 SYR4
Bromodichloromethane
8.326 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
3/4 SYR4
Monochloroacetic Acid
4.6 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
1/4 SYR4
Gross Beta Particle Activity
2.1 pCi/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2015
Highest in the city: 3.81 pCi/L — DEERFIELD FIRE DISTRICT · 1,300 people · 2015
2/4 SYR4
Dibromochloromethane
1.064 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
Highest in the city: 2.535 µg/L — DEERFIELD FIRE DISTRICT · 1,300 people · 2014
3/4 SYR4
Chromium
2.322 µg/L 2.3%
of the EPA limit 100 µg/L
Highest in the city: DEERFIELD FIRE DISTRICT · 1,300 people · 2017
1/4 SYR4
Lead
2.1 µg/L 14%
of the EPA limit 15 µg/L
Highest in the city: PAN AM SOUTHERN RAILROAD · 120 people · 2018
1/4 SYR4
Bromoform
0.6300 µg/L
No EPA limit set
Highest in the city: DEERFIELD FIRE DISTRICT · 1,300 people · 2014
1/4 SYR4
Monobromoacetic Acid
0.5800 µg/L
No EPA limit set
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2019
1/4 SYR4
Lead
0.0043 mg/L 29%
of the EPA limit 0.0150 mg/L
Main supplier: SOUTH DEERFIELD WATER SUPPLY DISTRICT · 3,800 people · 2025
Highest in the city: 0.0083 mg/L — DEERFIELD FIRE DISTRICT · 1,300 people · 2024
4/4 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 Deerfield

SupplierPopulation served
SOUTH DEERFIELD WATER SUPPLY DISTRICT 3,800
DEERFIELD FIRE DISTRICT 1,300
EAGLEBROOK SCHOOL 350
PAN AM SOUTHERN RAILROAD 120

Frequently asked questions about Deerfield tap water

Is Deerfield tap water safe to drink?

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

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

What contaminants are in Deerfield's water?

The contaminants EPA monitoring detected in Deerfield 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.