Is Grand Island Town Water Dept. Tap Water Safe? Quality Report

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

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

126

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	1996-01-01 → 1996-01-31
MCL	Health-based	Resolved	1996-01-01 → 1996-01-31
MCL	Health-based	Archived	1994-07-01 → 1994-07-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-10-01 → 2024-12-31
MR	Monitoring	Resolved	2024-07-01 → 2024-09-30

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
Total Haloacetic Acids (HAA5)	19.928 µg/L 33% of the EPA limit 60 µg/L worst single sample: 37.75 µg/L	107/108	SYR4	2012–2019
Bromodichloromethane	13.175 µg/L No EPA limit set worst single sample: 14 µg/L	106/107	SYR4	2012–2019
Chloroform	32.2 µg/L No EPA limit set worst single sample: 34 µg/L	106/107	SYR4	2012–2019
Dibromochloromethane	5.735 µg/L No EPA limit set worst single sample: 6 µg/L	106/107	SYR4	2012–2019
TTHM	51.025 µg/L 64% of the EPA limit 80 µg/L worst single sample: 54 µg/L	106/107	SYR4	2012–2019
Trichloroacetic Acid	10.675 µg/L No EPA limit set worst single sample: 13 µg/L	106/108	SYR4	2012–2019
Dichloroacetic Acid	8.548 µg/L No EPA limit set worst single sample: 12.6 µg/L	105/108	SYR4	2012–2019
Dibromoacetic Acid	3.085 µg/L No EPA limit set worst single sample: 8.27 µg/L	48/107	SYR4	2012–2019
Monobromoacetic Acid	1.262 µg/L No EPA limit set worst single sample: 7.32 µg/L	35/107	SYR4	2012–2019
Monochloroacetic Acid	4.779 µg/L No EPA limit set worst single sample: 8.38 µg/L	32/108	SYR4	2012–2019
Bromoform	0.6880 µg/L No EPA limit set worst single sample: 0.7000 µg/L	13/107	SYR4	2012–2019
Lead	0.0011 mg/L 7.5% of the EPA limit 0.0150 mg/L	13/13	LCR	2023
Barium	24.73 µg/L 1.2% of the EPA limit 2000 µg/L worst single sample: 25.9 µg/L	7/8	SYR4	2012–2019
Fluoride	980 µg/L 25% of the EPA limit 4000 µg/L worst single sample: 1010 µg/L	6/8	SYR4	2012–2019
Nitrate	191 µg/L 1.9% of the EPA limit 10000 µg/L	6/18	SYR4	2012–2019
Arsenic	0.8850 µg/L 8.9% of the EPA limit 10 µg/L worst single sample: 0.9000 µg/L	2/9	SYR4	2012–2019
Combined Radium (-226 And -228)	0.3500 pCi/L 7% of the EPA limit 5 pCi/L	1/1	SYR4	2018
Gross Alpha, Excl. Radon And U	0.8800 pCi/L 5.9% of the EPA limit 15 pCi/L	1/1	SYR4	2018
Nitrate-Nitrite	191 µg/L 1.9% of the EPA limit 10000 µg/L	1/2	SYR4	2015–2016

87 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: CLARKE, GILLMAN, C

Frequently asked questions about Grand Island Town Water Dept.

Is Grand Island Town Water Dept. tap water safe to drink?

EPA monitoring detected 19 contaminants in Grand Island Town 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 Grand Island Town Water Dept.'s water?

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

How many people does Grand Island Town Water Dept. serve?

Grand Island Town Water Dept. reports serving 19,500 people in New York, per its EPA record.

Has Grand Island Town Water Dept. had any water quality violations?

The EPA has 126 violations on file for Grand Island Town Water Dept., of which 3 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.