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Tap water quality report

Marshfield, MA

EPA monitoring detected 21 contaminants across the 1 water supplier serving Marshfield. 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
34,000
people served
21
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Marshfield'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
6310 µg/L 63%
of the EPA limit 10000 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Fluoride
373.5 µg/L 9.3%
of the EPA limit 4000 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Copper
29 µg/L 2.2%
of the EPA limit 1300 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2016
1/1 SYR4
Lithium
19.3 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
TTHM
8.47 µg/L 11%
of the EPA limit 80 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Tetrachloroethylene
3.725 µg/L 75%
of the EPA limit 5 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Dibromochloromethane
3.44 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Bromoform
2.305 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Bromodichloromethane
1.86 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.585 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.585 µg/L 2.6%
of the EPA limit 60 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Chloroform
1.4 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Toluene
0.5000 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2019
1/1 SYR4
Pfpea
0.0147 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
Pfhxa
0.0117 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
PFOA
0.0070 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
Pfba
0.0060 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
PFOS
0.0046 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2024
1/1 LCR
PFBS
0.0039 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
Pfhpa
0.0032 µg/L
No EPA limit set
Main supplier: MARSHFIELD WATER DEPARTMENT · 34,000 people · 2025
1/1 UCMR-5
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 Marshfield

SupplierPopulation served
MARSHFIELD WATER DEPARTMENT 34,000

Frequently asked questions about Marshfield tap water

Is Marshfield tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Marshfield. 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 Marshfield?

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

What contaminants are in Marshfield's water?

The contaminants EPA monitoring detected in Marshfield include Nitrate, Fluoride, Copper, Lithium, TTHM. 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.