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Tap water quality report

Oxford, MA

EPA monitoring detected 18 contaminants across the 5 water suppliers serving Oxford. 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.

5
water suppliers
7,567
people served
18
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Oxford'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
4000 µg/L 40%
of the EPA limit 10000 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
5/5 SYR4
Fluoride
920 µg/L 23%
of the EPA limit 4000 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
4/5 SYR4
Nitrite
210 µg/L 21%
of the EPA limit 1000 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
1/5 SYR4
TTHM
42.2 µg/L 53%
of the EPA limit 80 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
2/5 SYR4
Copper
28.25 µg/L 2.2%
of the EPA limit 1300 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2015
1/5 SYR4
Barium
21.35 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
Highest in the city: 21.8 µg/L — MAPLEBROOK APARTMENTS · 33 people · 2018
4/5 SYR4
Arsenic
4.385 µg/L 44%
of the EPA limit 10 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
Highest in the city: 18.85 µg/L — PINEWOOD ON THE GREEN CONDOS · 50 people · 2019
4/5 SYR4
Bromodichloromethane
13.5 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
2/5 SYR4
Chloroform
13.5 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
1/5 SYR4
Dibromochloromethane
11 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
2/5 SYR4
Total Haloacetic Acids (HAA5)
6.06 µg/L 10%
of the EPA limit 60 µg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
2/5 SYR4
Trichloroacetic Acid
3.775 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
1/5 SYR4
Bromoform
2.475 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
2/5 SYR4
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
Highest in the city: MAPLEBROOK APARTMENTS · 33 people · 2018
1/5 SYR4
Dichloroacetic Acid
1.192 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
1/5 SYR4
Dibromoacetic Acid
0.6400 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2019
Highest in the city: 0.9900 µg/L — PINEWOOD ON THE GREEN CONDOS · 50 people · 2017
2/5 SYR4
Pfhxa
0.0034 µg/L
No EPA limit set
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2024
1/5 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: AQUARION WATER COMPANY OXFORD · 7,384 people · 2026
Highest in the city: 0.0027 mg/L — MAPLEBROOK APARTMENTS · 33 people · 2025
5/5 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 Oxford

SupplierPopulation served
AQUARION WATER COMPANY OXFORD 7,384
TORIA HEIGHTS CONDOMINIUM 60
PINEWOOD ON THE GREEN CONDOS 50
BUFFUMVILLE HEIGHTS ESTATES CONDOMINIUM 40
MAPLEBROOK APARTMENTS 33

Frequently asked questions about Oxford tap water

Is Oxford tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Oxford. 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 Oxford?

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

What contaminants are in Oxford's water?

The contaminants EPA monitoring detected in Oxford include Nitrate, Fluoride, 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.