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Tap water quality report

Lynnfield, MA

EPA monitoring detected 21 contaminants across the 2 water suppliers serving Lynnfield. 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.

2
water suppliers
13,345
people served
21
contaminants found
Massachusetts rankings Lead in Massachusetts PFAS in Massachusetts

What was found in Lynnfield'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
9300 µg/L 93%
of the EPA limit 10000 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Fluoride
825 µg/L 21%
of the EPA limit 4000 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2018
1/2 SYR4
Copper
125.25 µg/L 9.6%
of the EPA limit 1300 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
TTHM
43.76 µg/L 55%
of the EPA limit 80 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Barium
43.4 µg/L 2.2%
of the EPA limit 2000 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2018
1/2 SYR4
Lithium
16.9 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2024
1/2 UCMR-5
Dibromochloromethane
16.86 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Bromodichloromethane
14 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Chloroform
10.31 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
9.68 µg/L 16%
of the EPA limit 60 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Bromoform
5.69 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Dichloroacetic Acid
4.101 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Chromium
3.44 µg/L 3.4%
of the EPA limit 100 µg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2018
1/2 SYR4
Dibromoacetic Acid
2.924 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Trichloroacetic Acid
2.714 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
Monochloroacetic Acid
1.4355 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2019
1/2 SYR4
PFOA
0.0061 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2024
1/2 UCMR-5
Pfba
0.0051 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2024
1/2 UCMR-5
Pfhxa
0.0038 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2024
1/2 UCMR-5
Lead
0.0036 mg/L 24%
of the EPA limit 0.0150 mg/L
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2026
2/2 LCR
Pfpea
0.0034 µg/L
No EPA limit set
Main supplier: LYNNFIELD CENTER WATER DISTRICT · 8,525 people · 2024
1/2 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 Lynnfield

SupplierPopulation served
LYNNFIELD CENTER WATER DISTRICT 8,525
LYNNFIELD WATER DIST. (MWRA) 4,820

Frequently asked questions about Lynnfield tap water

Is Lynnfield tap water safe to drink?

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

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

What contaminants are in Lynnfield's water?

The contaminants EPA monitoring detected in Lynnfield include Nitrate, Fluoride, Copper, TTHM, Barium. 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.