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Tap water quality report

Boxborough, MA

EPA monitoring detected 19 contaminants across the 9 water suppliers serving Boxborough. 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.

9
water suppliers
2,357
people served
19
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Boxborough'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
1525 µg/L 15%
of the EPA limit 10000 µg/L
Main supplier: APPLEWOOD COMMUNITY CORPORATION · 500 people · 2019
Highest in the city: 4200 µg/L — CARRIAGE HOUSE CONDOMINIUM · 68 people · 2019
7/9 SYR4
Fluoride
138 µg/L 3.5%
of the EPA limit 4000 µg/L
Highest in the city: HARVARD RIDGE CONDOMINIUM · 350 people · 2017
3/9 SYR4
Barium
57.1 µg/L 2.9%
of the EPA limit 2000 µg/L
Main supplier: APPLEWOOD COMMUNITY CORPORATION · 500 people · 2019
Highest in the city: 135.95 µg/L — BROOK VILLAGE CONDOMINIUM · 400 people · 2018
7/9 SYR4
Copper
73 µg/L 5.6%
of the EPA limit 1300 µg/L
Main supplier: APPLEWOOD COMMUNITY CORPORATION · 500 people · 2019
Highest in the city: 110 µg/L — CODMAN HILL CONDOMINIUM · 360 people · 2012
5/9 SYR4
TTHM
11.92 µg/L 15%
of the EPA limit 80 µg/L
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
2/9 SYR4
Arsenic
10.3 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Highest in the city: CARRIAGE HOUSE CONDOMINIUM · 68 people · 2019
3/9 SYR4
Combined Uranium
8.2 µg/L 27%
of the EPA limit 30 µg/L
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2012
2/9 SYR4
Bromoform
6.06 µg/L
No EPA limit set
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
2/9 SYR4
Dibromochloromethane
4.49 µg/L
No EPA limit set
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
2/9 SYR4
Selenium
4 µg/L 8%
of the EPA limit 50 µg/L
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2018
1/9 SYR4
Total Haloacetic Acids (HAA5)
3.9 µg/L 6.5%
of the EPA limit 60 µg/L
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
2/9 SYR4
Dibromoacetic Acid
3.88 µg/L
No EPA limit set
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
2/9 SYR4
Dichloroacetic Acid
2.3 µg/L
No EPA limit set
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
1/9 SYR4
Gross Beta Particle Activity
1.435 pCi/L
No EPA limit set
Highest in the city: PADDOCK ESTATES · 463 people · 2015
1/9 SYR4
Bromodichloromethane
1.385 µg/L
No EPA limit set
Highest in the city: BROOK VILLAGE CONDOMINIUM · 400 people · 2019
2/9 SYR4
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: APPLEWOOD COMMUNITY CORPORATION · 500 people · 2019
1/9 SYR4
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
Highest in the city: LIBERTY HOUSE CONDOMINIUM · 80 people · 2016
1/9 SYR4
Toluene
0.9700 µg/L 0.1%
of the EPA limit 1000 µg/L
Highest in the city: HARVARD RIDGE CONDOMINIUM · 350 people · 2019
2/9 SYR4
Lead
0.0041 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: APPLEWOOD COMMUNITY CORPORATION · 500 people · 2024
Highest in the city: 0.0131 mg/L — CENTRE VILLAGE APARTMENTS · 36 people · 2025
9/9 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 Boxborough

SupplierPopulation served
APPLEWOOD COMMUNITY CORPORATION 500
PADDOCK ESTATES 463
BROOK VILLAGE CONDOMINIUM 400
CODMAN HILL CONDOMINIUM 360
HARVARD RIDGE CONDOMINIUM 350
ENCLAVE AT BOXBOROUGH 100
LIBERTY HOUSE CONDOMINIUM 80
CARRIAGE HOUSE CONDOMINIUM 68
CENTRE VILLAGE APARTMENTS 36

Frequently asked questions about Boxborough tap water

Is Boxborough tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Boxborough. 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 Boxborough?

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

What contaminants are in Boxborough's water?

The contaminants EPA monitoring detected in Boxborough 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.