Is Windham Water Works Tap Water Safe? Quality Report

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

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
TT	Health-based	Resolved	1995-03-01 → 1995-03-31
TT	Health-based	Resolved	1995-03-01 → 1995-03-31
TT	Health-based	Resolved	1995-02-01 → 1995-02-28
TT	Health-based	Resolved	1995-02-01 → 1995-02-28
TT	Health-based	Resolved	1995-01-01 → 1995-01-31
TT	Health-based	Resolved	1995-01-01 → 1995-01-31
TT	Health-based	Resolved	1994-12-01 → 1994-12-31
TT	Health-based	Resolved	1994-12-01 → 1994-12-31
TT	Health-based	Resolved	1994-11-01 → 1994-11-30
TT	Health-based	Resolved	1994-11-01 → 1994-11-30

PFAS detected

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

Contaminant	Max	Detection rate	Period
Pfhxa	0.0034 µg/L	1/4	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
Bromodichloromethane	14 µg/L No EPA limit set worst single sample: 15 µg/L	136/136	SYR4	2012–2019
Chloroform	65.5 µg/L No EPA limit set worst single sample: 91 µg/L	136/136	SYR4	2012–2019
Dichloroacetic Acid	18 µg/L No EPA limit set worst single sample: 38 µg/L	128/128	SYR4	2012–2019
TTHM	81.755 µg/L 102% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 106.2 µg/L	128/128	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	28 µg/L 47% of the EPA limit 60 µg/L worst single sample: 48 µg/L	128/128	SYR4	2012–2019
Trichloroacetic Acid	14 µg/L No EPA limit set worst single sample: 17 µg/L	128/128	SYR4	2012–2019
Dibromochloromethane	3.9 µg/L No EPA limit set worst single sample: 4.8 µg/L	117/136	SYR4	2012–2019
Copper	110 µg/L 8.5% of the EPA limit 1300 µg/L worst single sample: 212 µg/L	97/101	SYR4	2012–2019
Chlorite	752.5 µg/L 75% of the EPA limit 1000 µg/L worst single sample: 810 µg/L	96/96	SYR4	2012–2019
Lead	14 µg/L 93% of the EPA limit 15 µg/L worst single sample: 57 µg/L	61/101	SYR4	2012–2019
Lead	0.0043 mg/L 29% of the EPA limit 0.0150 mg/L	35/35	LCR	2025
Nitrate	240 µg/L 2.4% of the EPA limit 10000 µg/L	18/18	SYR4	2012–2019
Nitrate-Nitrite	240 µg/L 2.4% of the EPA limit 10000 µg/L	17/17	SYR4	2012–2019
Barium	9.25 µg/L 0.5% of the EPA limit 2000 µg/L worst single sample: 10 µg/L	16/16	SYR4	2012–2019
Fluoride	1264 µg/L 32% of the EPA limit 4000 µg/L worst single sample: 1600 µg/L	8/16	SYR4	2012–2019
Monochloroacetic Acid	3.45 µg/L No EPA limit set worst single sample: 3.5 µg/L	2/128	SYR4	2012–2019

95 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, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: TURGEON, MICHAEL
Phone: 860-465-3086
Email: [email protected]

Frequently asked questions about Windham Water Works

Is Windham Water Works tap water safe to drink?

EPA monitoring detected 17 contaminants in Windham Water Works'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 Windham Water Works's water?

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

How many people does Windham Water Works serve?

Windham Water Works reports serving 21,214 people in Connecticut, per its EPA record.

Has Windham Water Works had any water quality violations?

The EPA has 35 violations on file for Windham Water Works, of which 18 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.