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Tap water quality report

Middleborough, MA

EPA monitoring detected 21 contaminants across the 3 water suppliers serving Middleborough. 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.

3
water suppliers
15,608
people served
21
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Middleborough'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
2090 µg/L 21%
of the EPA limit 10000 µg/L
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Copper
220 µg/L 17%
of the EPA limit 1300 µg/L
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
TTHM
40.7 µg/L 51%
of the EPA limit 80 µg/L
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Chloroform
26.1 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Total Haloacetic Acids (HAA5)
21.5 µg/L 36%
of the EPA limit 60 µg/L
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Trichloroacetic Acid
12.95 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Bromodichloromethane
11.335 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Dichloroacetic Acid
9.67 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Dibromochloromethane
8.34 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Monochloroacetic Acid
7.85 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
1/3 SYR4
Dibromoacetic Acid
2.83 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
2/3 SYR4
Bromoform
2.2 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2019
1/3 SYR4
Pfpea
0.0130 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
Highest in the city: 0.0110 mg/L — JAKES PATH PWS · 168 people · 2025
3/3 LCR
PFOA
0.0110 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
Pfhxa
0.0100 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
Pfba
0.0050 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
PFBS
0.0050 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
PFOS
0.0050 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
Pfhpa
0.0040 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 UCMR-5
PFHXS
0.0030 µg/L
No EPA limit set
Main supplier: MIDDLEBOROUGH WATER SUPPLY · 15,350 people · 2025
1/3 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 Middleborough

SupplierPopulation served
MIDDLEBOROUGH WATER SUPPLY 15,350
JAKES PATH PWS 168
NEMASKET HEALTH CARE CENTER 90

Frequently asked questions about Middleborough tap water

Is Middleborough tap water safe to drink?

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

3 public water suppliers report drinking-water monitoring for Middleborough, Massachusetts to the EPA. Each is listed above with its population served.

What contaminants are in Middleborough's water?

The contaminants EPA monitoring detected in Middleborough include Nitrate, Copper, 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.