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Tap water quality report

Shirley Water District

EPA monitoring tested this supplier for 102 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
16
detected
4,165
people served
15
health-based violations
Massachusetts rankingsLead in MassachusettsPFAS in Massachusetts
Water source
Ground 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.

15
health-based violations
74
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2009-11-01 → 2009-11-30
MCL Health-based Resolved 2003-09-01 → 2003-09-30
MCL Health-based Resolved 2003-09-01 → 2003-09-30
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 1998-05-01 → 1998-05-31
MCL Health-based Resolved 1998-05-01 → 1998-05-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0071 µg/L 2/5 2025
Pfpea 0.0052 µg/L 2/5 2025
PFBS 0.0030 µg/L 1/5 2025
Pfhpa 0.0037 µg/L 1/5 2025
PFOA 0.0069 µg/L 1/5 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
2000 µg/L 20%
of the EPA limit 10000 µg/L
worst single sample: 2200 µg/L
48/48 SYR4 2012–2019
Copper
170 µg/L 13%
of the EPA limit 1300 µg/L
worst single sample: 175 µg/L
21/24 SYR4 2012–2019
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Bromoform
1.733 µg/L
No EPA limit set
worst single sample: 1.79 µg/L
7/7 SYR4 2014–2019
TTHM
5.126 µg/L 6.4%
of the EPA limit 80 µg/L
worst single sample: 6.44 µg/L
7/7 SYR4 2014–2019
Dibromochloromethane
2.414 µg/L
No EPA limit set
worst single sample: 2.72 µg/L
5/7 SYR4 2014–2019
Barium
3 µg/L 0.2%
of the EPA limit 2000 µg/L
 2/3 SYR4 2012–2017
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/3 SYR4 2012–2017
Bromodichloromethane
1.31 µg/L
No EPA limit set
 1/7 SYR4 2014–2019
Chloroform
0.6200 µg/L
No EPA limit set
 1/7 SYR4 2014–2019
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 1/3 SYR4 2012–2017
86 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BRIAN D BOOMGAARDEN
Phone
9784252245
Email
[email protected]

Frequently asked questions about Shirley Water District

Is Shirley Water District tap water safe to drink?

EPA monitoring detected 16 contaminants in Shirley Water District'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 Shirley Water District's water?

EPA monitoring detected Nitrate, Copper, Lead, Bromoform, TTHM, and others. The full list with the level and data source for each is above.

How many people does Shirley Water District serve?

Shirley Water District reports serving 4,165 people in Massachusetts, per its EPA record.

Has Shirley Water District had any water quality violations?

The EPA has 74 violations on file for Shirley Water District, of which 15 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.