Tap WaterIndex

← Massachusetts

Tap water quality report

Franklin, MA

EPA monitoring detected 22 contaminants across the 1 water supplier serving Franklin. 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
33,706
people served
22
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Franklin'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
4620 µg/L 46%
of the EPA limit 10000 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Fluoride
1010 µg/L 25%
of the EPA limit 4000 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2018
1/1 SYR4
Barium
202.5 µg/L 10%
of the EPA limit 2000 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2018
1/1 SYR4
Copper
69 µg/L 5.3%
of the EPA limit 1300 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
TTHM
38.8 µg/L 49%
of the EPA limit 80 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Chloroform
14.1 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Bromodichloromethane
12.985 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Dibromochloromethane
12.465 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
12.44 µg/L 21%
of the EPA limit 60 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Dichloroacetic Acid
8.56 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Trichloroacetic Acid
6.7 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Bromoform
4.525 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.96 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Bromate
1.9 µg/L 19%
of the EPA limit 10 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
Dinoseb
0.9800 µg/L 14%
of the EPA limit 7 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
1,1,1-Trichloroethane
0.9000 µg/L 0.5%
of the EPA limit 200 µg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2019
1/1 SYR4
PFOS
0.0056 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2025
1/1 UCMR-5
PFHXS
0.0054 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2025
1/1 UCMR-5
PFOA
0.0047 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2025
1/1 UCMR-5
PFBS
0.0037 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2025
1/1 UCMR-5
Pfhxa
0.0036 µg/L
No EPA limit set
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 people · 2025
1/1 UCMR-5
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: FRANKLIN WATER DEPARTMENT · 33,706 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 Franklin

SupplierPopulation served
FRANKLIN WATER DEPARTMENT 33,706

Frequently asked questions about Franklin tap water

Is Franklin tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Franklin. 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 Franklin?

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

What contaminants are in Franklin's water?

The contaminants EPA monitoring detected in Franklin include Nitrate, Fluoride, Barium, Copper, 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.