Is Tewksbury Water Department Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Middlesex

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2021-10-01 → 2021-12-31
MCL	Health-based	Resolved	2021-10-01 → 2021-12-31
MCL	Health-based	Resolved	2021-07-01 → 2021-09-30
MCL	Health-based	Resolved	2021-07-01 → 2021-09-30
MR	Monitoring	Addressed	2023-06-01
MR	Monitoring	Archived	2014-07-01 → 2014-09-30
MR	Monitoring	Archived	2014-07-01 → 2014-09-30
MR	Monitoring	Resolved	2009-01-01 → 2009-01-31
MR	Monitoring	Resolved	2009-01-01 → 2009-01-31
MR	Monitoring	Archived	2008-02-01 → 2008-02-29

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
PFOA	0.0050 µg/L	3/4	2024
Pfhxa	0.0040 µg/L	2/4	2024
Pfpea	0.0040 µg/L	2/4	2024

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Chlorite	460 µg/L 46% of the EPA limit 1000 µg/L worst single sample: 650 µg/L	211/241	SYR4	2012–2019
TTHM	87.1 µg/L 109% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 100 µg/L	121/121	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	27.605 µg/L 46% of the EPA limit 60 µg/L worst single sample: 39 µg/L	118/118	SYR4	2012–2019
Bromodichloromethane	18 µg/L No EPA limit set worst single sample: 24 µg/L	85/85	SYR4	2014–2019
Chloroform	63.96 µg/L No EPA limit set worst single sample: 85 µg/L	85/85	SYR4	2014–2019
Dibromochloromethane	7.1 µg/L No EPA limit set worst single sample: 8 µg/L	85/85	SYR4	2014–2019
Dichloroacetic Acid	11.84 µg/L No EPA limit set worst single sample: 13.7 µg/L	69/69	SYR4	2014–2019
Trichloroacetic Acid	17.54 µg/L No EPA limit set worst single sample: 20 µg/L	69/69	SYR4	2014–2019
Monochloroacetic Acid	2.375 µg/L No EPA limit set worst single sample: 2.5 µg/L	26/69	SYR4	2014–2019
Dibromoacetic Acid	1.36 µg/L No EPA limit set worst single sample: 1.4 µg/L	25/69	SYR4	2014–2019
Nitrate	860 µg/L 8.6% of the EPA limit 10000 µg/L	20/20	SYR4	2012–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	15/15	LCR	2023
Bromoform	1.3 µg/L No EPA limit set worst single sample: 1.6 µg/L	13/84	SYR4	2014–2019
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	1000 µg/L 25% of the EPA limit 4000 µg/L	7/8	SYR4	2012–2018
Monobromoacetic Acid	1.16 µg/L No EPA limit set worst single sample: 1.2 µg/L	3/69	SYR4	2014–2019

85 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: KEVIN HARDIMAN
Phone: 9788580345
Email: [email protected]

Frequently asked questions about Tewksbury Water Department

Is Tewksbury Water Department tap water safe to drink?

EPA monitoring detected 19 contaminants in Tewksbury Water Department'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 Tewksbury Water Department's water?

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

How many people does Tewksbury Water Department serve?

Tewksbury Water Department reports serving 31,342 people in Massachusetts, per its EPA record.

Has Tewksbury Water Department had any water quality violations?

The EPA has 22 violations on file for Tewksbury Water Department, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 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.