Is Plainville, MA Tap Water Safe? Quality & Contaminants

What was found in Plainville'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	987.5 µg/L 9.9% of the EPA limit 10000 µg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Fluoride	140 µg/L 3.5% of the EPA limit 4000 µg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
TTHM	117.6 µg/L 147% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Chloroform	86.66 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Total Haloacetic Acids (HAA5)	57.12 µg/L 95% of the EPA limit 60 µg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Trichloroacetic Acid	31.66 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Bromodichloromethane	27.27 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Dichloroacetic Acid	26.825 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Dibromochloromethane	10.27 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Monochloroacetic Acid	8.235 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Antimony, Total	3 µg/L 50% of the EPA limit 6 µg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Dibromoacetic Acid	2.45 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Bromoform	1.405 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
Dalapon	1.385 µg/L 0.7% of the EPA limit 200 µg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2018	1/1	SYR4
Monobromoacetic Acid	1.1 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2019	1/1	SYR4
PFBS	0.0176 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2023	1/1	UCMR-5
PFOS	0.0059 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2023	1/1	UCMR-5
Pfba	0.0050 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2023	1/1	UCMR-5
PFOA	0.0043 µg/L No EPA limit set Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 people · 2023	1/1	UCMR-5
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: PLAINVILLE WATER DEPARTMENT · 8,805 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 Plainville

Supplier	Population served
PLAINVILLE WATER DEPARTMENT	8,805

Frequently asked questions about Plainville tap water

Is Plainville tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Plainville. 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 Plainville?

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

What contaminants are in Plainville's water?

The contaminants EPA monitoring detected in Plainville include Nitrate, Fluoride, TTHM, Chloroform, Total Haloacetic Acids (HAA5). 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.