Is Hadley, MA Tap Water Safe? Quality & Contaminants

What was found in Hadley'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	610 µg/L 6.1% of the EPA limit 10000 µg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2019	1/1	SYR4
Barium	258.1 µg/L 13% of the EPA limit 2000 µg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2017	1/1	SYR4
Nitrite	20.71 µg/L 2.1% of the EPA limit 1000 µg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2017	1/1	SYR4
TTHM	13.9 µg/L 17% of the EPA limit 80 µg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Copper	12.725 µg/L 1% of the EPA limit 1300 µg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2019	1/1	SYR4
Dibromochloromethane	5.52 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Bromodichloromethane	3.98 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Total Haloacetic Acids (HAA5)	3.01 µg/L 5% of the EPA limit 60 µg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Bromoform	2.37 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Chloroform	2.29 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Dibromoacetic Acid	1.61 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Dichloroacetic Acid	0.7700 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Trichloroacetic Acid	0.7100 µg/L No EPA limit set Main supplier: HADLEY DPW WATER DIVISION · 4,819 people · 2018	1/1	SYR4
Lead	0.0046 mg/L 31% of the EPA limit 0.0150 mg/L Main supplier: HADLEY DPW WATER DIVISION · 4,819 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 Hadley

Supplier	Population served
HADLEY DPW WATER DIVISION	4,819

Frequently asked questions about Hadley tap water

Is Hadley tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Hadley. 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 Hadley?

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

What contaminants are in Hadley's water?

The contaminants EPA monitoring detected in Hadley include Nitrate, Barium, Nitrite, TTHM, Copper. 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.