Is Canton Water District Tap Water Safe? Quality Report

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

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.

289

health-based violations

338

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Unaddressed	2025-04-01
TT	Health-based	Unaddressed	2025-04-01
TT	Health-based	Resolved	2024-11-20
TT	Health-based	Resolved	2024-11-20
MCL	Health-based	Resolved	2020-04-01 → 2020-06-30
MCL	Health-based	Resolved	2020-04-01 → 2020-06-30
MCL	Health-based	Resolved	2020-04-01 → 2020-06-30
MCL	Health-based	Resolved	2020-04-01 → 2020-06-30
MCL	Health-based	Resolved	2020-01-01 → 2020-03-31
MCL	Health-based	Resolved	2020-01-01 → 2020-03-31

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
TTHM	82.415 µg/L 103% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 121 µg/L	32/32	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	101.75 µg/L 170% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 160 µg/L	32/32	SYR4	2012–2019
Trichloroacetic Acid	67.15 µg/L No EPA limit set worst single sample: 110 µg/L	32/32	SYR4	2012–2019
Dichloroacetic Acid	40.3 µg/L No EPA limit set worst single sample: 51 µg/L	30/32	SYR4	2012–2019
Chloroform	82.1 µg/L No EPA limit set worst single sample: 120 µg/L	28/29	SYR4	2012–2019
Bromodichloromethane	3.94 µg/L No EPA limit set worst single sample: 4.5 µg/L	27/29	SYR4	2012–2019
Copper	548 µg/L 42% of the EPA limit 1300 µg/L worst single sample: 560 µg/L	23/24	SYR4	2012–2019
Lead	0.0031 mg/L 21% of the EPA limit 0.0150 mg/L	20/20	LCR	2026
Nitrate	410 µg/L 4.1% of the EPA limit 10000 µg/L	18/18	SYR4	2012–2019
Lead	14.4 µg/L 96% of the EPA limit 15 µg/L worst single sample: 16 µg/L	17/24	SYR4	2012–2019
Barium	4.39 µg/L 0.2% of the EPA limit 2000 µg/L worst single sample: 4.6 µg/L	8/9	SYR4	2012–2019
Nitrate-Nitrite	189.5 µg/L 1.9% of the EPA limit 10000 µg/L worst single sample: 200 µg/L	8/8	SYR4	2012–2019
Combined Uranium	1.995 µg/L 6.7% of the EPA limit 30 µg/L worst single sample: 2.1 µg/L	4/4	SYR4	2015–2019
Combined Radium (-226 And -228)	2.78 pCi/L 56% of the EPA limit 5 pCi/L worst single sample: 3 pCi/L	3/3	SYR4	2013
Fluoride	568 µg/L 14% of the EPA limit 4000 µg/L worst single sample: 620 µg/L	3/9	SYR4	2012–2019
Chromium	0.5095 µg/L 0.5% of the EPA limit 100 µg/L worst single sample: 0.5100 µg/L	2/9	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	20.6815 pCi/L 138% of the EPA limit, at the 95th percentile of samples — 15 pCi/L worst single sample: 21.49 pCi/L	2/3	SYR4	2012–2013
Antimony, Total	0.5300 µg/L 8.8% of the EPA limit 6 µg/L	1/9	SYR4	2012–2019
Gross Beta Particle Activity	9.92 pCi/L No EPA limit set	1/1	SYR4	2013
Monochloroacetic Acid	2.1 µg/L No EPA limit set	1/32	SYR4	2012–2019

57 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: GOODROW, SHAWN
Phone: 207-597-2201
Email: [email protected]

Frequently asked questions about Canton Water District

Is Canton Water District tap water safe to drink?

EPA monitoring detected 20 contaminants in Canton 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 Canton Water District's water?

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

How many people does Canton Water District serve?

Canton Water District reports serving 243 people in Maine, per its EPA record.

Has Canton Water District had any water quality violations?

The EPA has 338 violations on file for Canton Water District, of which 289 are health-based (a contaminant limit or required treatment was breached) and 2 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.