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Tap water quality report

Lynn Water and Sewer Comm

EPA monitoring tested this supplier for 103 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

103
contaminants tested
20
detected
101,253
people served
20
health-based violations
Water source
Surface water
Ownership
Local government
Counties served
Essex

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

20
health-based violations
26
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1988-01-01 → 1988-12-31
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30
MCL Health-based Archived 1985-07-01 → 1986-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0049 µg/L 4/4 2023
Pfpea 0.0052 µg/L 4/4 2023
Pfba 0.0054 µg/L 2/4 2023
PFBS 0.0031 µg/L 2/4 2023
PFOA 0.0047 µg/L 2/4 2023

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chlorite
200 µg/L 20%
of the EPA limit 1000 µg/L
worst single sample: 650 µg/L
486/510 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
25.52 µg/L 43%
of the EPA limit 60 µg/L
worst single sample: 40.5 µg/L
225/225 SYR4 2012–2019
TTHM
72.47 µg/L 91%
of the EPA limit 80 µg/L
worst single sample: 83.9 µg/L
224/224 SYR4 2012–2019
Bromodichloromethane
25 µg/L
No EPA limit set
worst single sample: 30 µg/L
160/160 SYR4 2015–2019
Chloroform
31.05 µg/L
No EPA limit set
worst single sample: 37 µg/L
160/160 SYR4 2015–2019
Dibromochloromethane
15 µg/L
No EPA limit set
worst single sample: 19 µg/L
160/160 SYR4 2015–2019
Dichloroacetic Acid
12.05 µg/L
No EPA limit set
worst single sample: 30 µg/L
160/160 SYR4 2015–2019
Trichloroacetic Acid
11 µg/L
No EPA limit set
worst single sample: 13 µg/L
160/160 SYR4 2015–2019
Dibromoacetic Acid
2.8 µg/L
No EPA limit set
worst single sample: 3.5 µg/L
122/160 SYR4 2015–2019
Bromoform
1.9 µg/L
No EPA limit set
worst single sample: 2 µg/L
80/160 SYR4 2015–2019
Lead
0.0024 mg/L 16%
of the EPA limit 0.0150 mg/L
16/16 LCR 2023
Nitrate
250 µg/L 2.5%
of the EPA limit 10000 µg/L
16/16 SYR4 2012–2019
Barium
18.65 µg/L 0.9%
of the EPA limit 2000 µg/L
worst single sample: 19 µg/L
8/8 SYR4 2012–2019
Fluoride
921.5 µg/L 23%
of the EPA limit 4000 µg/L
worst single sample: 960 µg/L
8/8 SYR4 2012–2019
Monochloroacetic Acid
7.4 µg/L
No EPA limit set
1/160 SYR4 2015–2019
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MATTHEW COMEAU
Phone
7815955200
Email
[email protected]

Frequently asked questions about Lynn Water and Sewer Comm

Is Lynn Water and Sewer Comm tap water safe to drink?

EPA monitoring detected 20 contaminants in Lynn Water and Sewer Comm's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Lynn Water and Sewer Comm's water?

EPA monitoring detected Chlorite, Total Haloacetic Acids (HAA5), TTHM, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Lynn Water and Sewer Comm serve?

Lynn Water and Sewer Comm reports serving 101,253 people in Massachusetts, per its EPA record.

Has Lynn Water and Sewer Comm had any water quality violations?

The EPA has 26 violations on file for Lynn Water and Sewer Comm, of which 20 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.