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Tap water quality report

Topsfield, MA

EPA monitoring detected 25 contaminants across the 1 water supplier serving Topsfield. 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
5,435
people served
25
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Topsfield'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
2586 µg/L 26%
of the EPA limit 10000 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2018
1/1 SYR4
Fluoride
1036 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Barium
70.04 µg/L 3.5%
of the EPA limit 2000 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
TTHM
37.075 µg/L 46%
of the EPA limit 80 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Dibromochloromethane
12.8 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Chloroform
12.635 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Bromodichloromethane
11.33 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Copper
5.445 µg/L 0.4%
of the EPA limit 1300 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2018
1/1 SYR4
Bromoform
4.395 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Monobromoacetic Acid
4.014 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
3.738 µg/L 6.2%
of the EPA limit 60 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Trichloroacetic Acid
1.745 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Chromium
1.29 µg/L 1.3%
of the EPA limit 100 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Monochloroacetic Acid
1.23 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Dichloroacetic Acid
1.06 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Carbofuran
0.9000 µg/L 2.3%
of the EPA limit 40 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
Hexachlorobenzene
0.0950 µg/L 9.5%
of the EPA limit 1 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
1,2-DIBROMO-3-CHLOROPROPANE
0.0100 µg/L 5%
of the EPA limit 0.2000 µg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2019
1/1 SYR4
PFOA
0.0090 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2025
1/1 UCMR-5
PFOS
0.0054 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2025
1/1 UCMR-5
PFBS
0.0040 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2025
1/1 UCMR-5
Pfhxa
0.0034 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2025
1/1 UCMR-5
Pfpea
0.0032 µg/L
No EPA limit set
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2025
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: TOPSFIELD WATER DEPARTMENT · 5,435 people · 2025
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 Topsfield

SupplierPopulation served
TOPSFIELD WATER DEPARTMENT 5,435

Frequently asked questions about Topsfield tap water

Is Topsfield tap water safe to drink?

EPA testing detected 25 contaminants in the water serving Topsfield. 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 Topsfield?

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

What contaminants are in Topsfield's water?

The contaminants EPA monitoring detected in Topsfield include Nitrate, Fluoride, Barium, TTHM, Dibromochloromethane. 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.