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Tap water quality report

Woburn Water Dept.

EPA monitoring tested this supplier for 102 contaminants and detected 29. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
29
detected
40,876
people served
15
health-based violations
Massachusetts rankingsLead in MassachusettsPFAS in Massachusetts
Water source
SWP
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.

15
health-based violations
34
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1997-01-01
TT Health-based Resolved 1997-01-01
TT Health-based Resolved 1997-01-01
TT Health-based Resolved 1997-01-01
TT Health-based Resolved 1997-01-01
TT Health-based Resolved 1994-01-01
TT Health-based Resolved 1994-01-01
TT Health-based Resolved 1994-01-01
TT Health-based Resolved 1994-01-01
TT Health-based Resolved 1993-01-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0038 µg/L 2/6 2025
PFOA 0.0084 µg/L 2/6 2025
PFOS 0.0069 µg/L 2/6 2025
Pfba 0.0070 µg/L 1/6 2025
Pfhxa 0.0037 µg/L 1/6 2025
Pfpea 0.0038 µg/L 1/6 2025

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
Nitrate
620 µg/L 6.2%
of the EPA limit 10000 µg/L
worst single sample: 960 µg/L
220/224 SYR4 2012–2019
Chloroform
21.87 µg/L
No EPA limit set
worst single sample: 33 µg/L
132/132 SYR4 2012–2019
TTHM
64.135 µg/L 80%
of the EPA limit 80 µg/L
worst single sample: 83.6 µg/L
132/132 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
13.85 µg/L 23%
of the EPA limit 60 µg/L
worst single sample: 20.7 µg/L
131/132 SYR4 2012–2019
Bromodichloromethane
19.7 µg/L
No EPA limit set
worst single sample: 25.8 µg/L
129/132 SYR4 2012–2019
Dibromochloromethane
20.665 µg/L
No EPA limit set
worst single sample: 25.3 µg/L
128/132 SYR4 2012–2019
Dichloroacetic Acid
10.2 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
127/132 SYR4 2012–2019
Bromoform
8.658 µg/L
No EPA limit set
worst single sample: 12.3 µg/L
113/132 SYR4 2012–2019
Barium
38.9 µg/L 1.9%
of the EPA limit 2000 µg/L
worst single sample: 46 µg/L
112/112 SYR4 2012–2019
Copper
59.05 µg/L 4.5%
of the EPA limit 1300 µg/L
worst single sample: 140 µg/L
112/112 SYR4 2012–2019
Dibromoacetic Acid
5.2135 µg/L
No EPA limit set
worst single sample: 7.38 µg/L
100/132 SYR4 2012–2019
Trichloroacetic Acid
3.407 µg/L
No EPA limit set
worst single sample: 3.87 µg/L
83/132 SYR4 2012–2019
Arsenic
1.585 µg/L 16%
of the EPA limit 10 µg/L
worst single sample: 2 µg/L
64/112 SYR4 2012–2019
Fluoride
844.05 µg/L 21%
of the EPA limit 4000 µg/L
worst single sample: 898 µg/L
52/110 SYR4 2012–2019
Cadmium
0.1100 µg/L 2.2%
of the EPA limit 5 µg/L
worst single sample: 0.1200 µg/L
49/112 SYR4 2012–2019
Lead
0.0013 mg/L 8.5%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2025
Chromium
5.705 µg/L 5.7%
of the EPA limit 100 µg/L
worst single sample: 8 µg/L
10/111 SYR4 2012–2019
Selenium
1.6 µg/L 3.2%
of the EPA limit 50 µg/L
 10/112 SYR4 2012–2019
Thallium, Total
0.1240 µg/L 6.2%
of the EPA limit 2 µg/L
worst single sample: 0.1500 µg/L
9/112 SYR4 2012–2019
Monochloroacetic Acid
3.205 µg/L
No EPA limit set
worst single sample: 3.32 µg/L
6/132 SYR4 2012–2019
Tetrachloroethylene
0.7000 µg/L 14%
of the EPA limit 5 µg/L
worst single sample: 0.7100 µg/L
2/116 SYR4 2012–2019
Mercury
0.0370 µg/L 1.9%
of the EPA limit 2 µg/L
 1/111 SYR4 2012–2019
Nitrite
6.4 µg/L 0.6%
of the EPA limit 1000 µg/L
 1/112 SYR4 2012–2019
73 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOHN F DURAN III
Phone
7818975990
Email
[email protected]

Frequently asked questions about Woburn Water Dept.

Is Woburn Water Dept. tap water safe to drink?

EPA monitoring detected 29 contaminants in Woburn Water Dept.'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 Woburn Water Dept.'s water?

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

How many people does Woburn Water Dept. serve?

Woburn Water Dept. reports serving 40,876 people in Massachusetts, per its EPA record.

Has Woburn Water Dept. had any water quality violations?

The EPA has 34 violations on file for Woburn Water Dept., of which 15 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.