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Tap water quality report

Aquarion Water Company, Millbury

EPA monitoring tested this supplier for 103 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

103
contaminants tested
24
detected
11,368
people served
4
health-based violations
Water source
SWP
Ownership
Private
Counties served
Worcester

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.

4
health-based violations
30
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1995-10-01 → 1995-10-31
TT Health-based Resolved 1993-05-01 → 1994-10-30
TT Health-based Resolved 1993-05-01 → 1994-10-30
TT Health-based Resolved 1993-05-01 → 1994-10-30
MR Monitoring Addressed 2020-07-01
MR Monitoring Resolved 2019-06-01
MR Monitoring Resolved 2019-06-01
MR Monitoring Archived 1998-04-01 → 1998-06-30
MR Monitoring Archived 1998-04-01 → 1998-06-30
MR Monitoring Archived 1998-04-01 → 1998-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0103 µg/L 6/10 2023
Pfba 0.0159 µg/L 3/10 2023
Pfhxa 0.0086 µg/L 3/10 2023
PFBS 0.0037 µg/L 2/10 2023
PFOA 0.0158 µg/L 2/10 2023
PFOS 0.0062 µg/L 2/10 2023
Pfhpa 0.0058 µg/L 1/10 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
TTHM
43.915 µg/L 55%
of the EPA limit 80 µg/L
worst single sample: 57 µg/L
78/78 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
21.45 µg/L 36%
of the EPA limit 60 µg/L
worst single sample: 34.6 µg/L
78/78 SYR4 2012–2019
Nitrate
1920 µg/L 19%
of the EPA limit 10000 µg/L
worst single sample: 2110 µg/L
48/48 SYR4 2012–2019
Bromodichloromethane
14 µg/L
No EPA limit set
worst single sample: 18 µg/L
44/44 SYR4 2013–2019
Chloroform
17.4 µg/L
No EPA limit set
worst single sample: 29.4 µg/L
44/44 SYR4 2013–2019
Dibromochloromethane
17 µg/L
No EPA limit set
worst single sample: 23 µg/L
44/44 SYR4 2013–2019
Dibromoacetic Acid
5.295 µg/L
No EPA limit set
worst single sample: 6.3 µg/L
42/44 SYR4 2013–2019
Bromoform
6.335 µg/L
No EPA limit set
worst single sample: 8.5 µg/L
40/44 SYR4 2013–2019
Dichloroacetic Acid
11.35 µg/L
No EPA limit set
worst single sample: 12 µg/L
34/44 SYR4 2013–2019
Trichloroacetic Acid
17.35 µg/L
No EPA limit set
worst single sample: 20.6 µg/L
34/44 SYR4 2013–2019
Monobromoacetic Acid
1.285 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
24/44 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
18/18 LCR 2025
Barium
98.7 µg/L 4.9%
of the EPA limit 2000 µg/L
worst single sample: 100 µg/L
14/14 SYR4 2012–2019
Monochloroacetic Acid
4.2885 µg/L
No EPA limit set
worst single sample: 6.7 µg/L
14/44 SYR4 2013–2019
Copper
71.4 µg/L 5.5%
of the EPA limit 1300 µg/L
worst single sample: 81 µg/L
7/7 SYR4 2013–2015
Fluoride
624.7 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 646 µg/L
2/14 SYR4 2012–2019
2,4-D
0.5370 µg/L 0.8%
of the EPA limit 70 µg/L
1/21 SYR4 2013–2019
79 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-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOHN P WALSH
Phone
5088653998
Email
[email protected]

Frequently asked questions about Aquarion Water Company, Millbury

Is Aquarion Water Company, Millbury tap water safe to drink?

EPA monitoring detected 24 contaminants in Aquarion Water Company, Millbury'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 Aquarion Water Company, Millbury's water?

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

How many people does Aquarion Water Company, Millbury serve?

Aquarion Water Company, Millbury reports serving 11,368 people in Massachusetts, per its EPA record.

Has Aquarion Water Company, Millbury had any water quality violations?

The EPA has 30 violations on file for Aquarion Water Company, Millbury, 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.