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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 level at the main supplier 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 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
Fluoride
940 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Nitrate
450 µg/L 4.5%
of the EPA limit 10000 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Chlorite
410 µg/L 41%
of the EPA limit 1000 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
TTHM
78.62 µg/L 98%
of the EPA limit 80 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Chloroform
67.1 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
20.615 µg/L 34%
of the EPA limit 60 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Barium
13.1 µg/L 0.7%
of the EPA limit 2000 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Bromodichloromethane
12 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Dichloroacetic Acid
9.875 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Trichloroacetic Acid
7.525 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Dibromoacetic Acid
6.346 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Dibromochloromethane
4.4 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Monochloroacetic Acid
2.53 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Thallium, Total
1.395 µg/L 70%
of the EPA limit 2 µg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Bromoform
1.255 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
Monobromoacetic Acid
0.5200 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2019
1/1 SYR4
PFOA
0.0046 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2023
1/1 UCMR-5
Pfhxa
0.0040 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2023
1/1 UCMR-5
Pfpea
0.0039 µg/L
No EPA limit set
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 people · 2023
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: LOWELL REGIONAL WATER UTILITY · 120,418 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 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, Nitrate, Chlorite, TTHM, Chloroform. 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.