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Tap water quality report

Lowell, MA

EPA monitoring detected 20 contaminants across the 1 water supplier serving Lowell. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
120,418
people served
20
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Lowell's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
1000 µg/L 25%
of the EPA limit 4000 µg/L
 1/1 SYR4
Chlorite
480 µg/L 48%
of the EPA limit 1000 µg/L
 1/1 SYR4
Nitrate
450 µg/L 4.5%
of the EPA limit 10000 µg/L
 1/1 SYR4
TTHM
105.5 µg/L 132%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Chloroform
86 µg/L
No EPA limit set
 1/1 SYR4
Total Haloacetic Acids (HAA5)
37.8 µg/L 63%
of the EPA limit 60 µg/L
 1/1 SYR4
Bromodichloromethane
24 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
19 µg/L
No EPA limit set
 1/1 SYR4
Barium
14 µg/L 0.7%
of the EPA limit 2000 µg/L
 1/1 SYR4
Trichloroacetic Acid
8.4 µg/L
No EPA limit set
 1/1 SYR4
Dibromochloromethane
7.9 µg/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
7.3 µg/L
No EPA limit set
 1/1 SYR4
Monochloroacetic Acid
6.3 µg/L
No EPA limit set
 1/1 SYR4
Thallium, Total
1.4 µg/L 70%
of the EPA limit 2 µg/L
 1/1 SYR4
Bromoform
1.3 µg/L
No EPA limit set
 1/1 SYR4
Monobromoacetic Acid
0.5200 µg/L
No EPA limit set
 1/1 SYR4
PFOA
0.0046 µg/L
No EPA limit set
 1/1 UCMR-5
Pfhxa
0.0040 µg/L
No EPA limit set
 1/1 UCMR-5
Pfpea
0.0039 µg/L
No EPA limit set
 1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Lowell

SupplierPopulation served
LOWELL REGIONAL WATER UTILITY 120,418

Frequently asked questions about Lowell tap water

Is Lowell tap water safe to drink?

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

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

What contaminants are in Lowell's water?

The contaminants EPA monitoring detected in Lowell include Fluoride, Chlorite, Nitrate, TTHM, Chloroform. The full list, with the highest level found 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.