Is Hidden Hollow Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Ontario

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
MON	Monitoring	Resolved	2023-01-01 → 2023-03-31
MON	Monitoring	Resolved	2023-01-01 → 2023-03-31
MON	Monitoring	Resolved	2023-01-01 → 2023-03-31
MON	Monitoring	Resolved	2022-07-01 → 2022-09-30
MON	Monitoring	Resolved	2022-07-01 → 2022-09-30
MON	Monitoring	Resolved	2022-07-01 → 2022-09-30
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MR	Monitoring	Resolved	2016-01-01 → 2016-12-31

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
Lead	0.0046 mg/L 30% of the EPA limit 0.0150 mg/L	10/10	LCR	2024
Barium	210 µg/L 11% of the EPA limit 2000 µg/L	3/3	SYR4	2012–2018
Bromodichloromethane	2.075 µg/L No EPA limit set worst single sample: 2.1 µg/L	2/2	SYR4	2013–2016
Chloroform	2.39 µg/L No EPA limit set worst single sample: 2.4 µg/L	2/2	SYR4	2013–2016
Dibromochloromethane	2.385 µg/L No EPA limit set worst single sample: 2.4 µg/L	2/2	SYR4	2013–2016
Nitrate	26 µg/L 0.3% of the EPA limit 10000 µg/L	2/16	SYR4	2012–2019
TTHM	7.635 µg/L 9.5% of the EPA limit 80 µg/L worst single sample: 7.7 µg/L	2/2	SYR4	2013–2016
Bromoform	1.3 µg/L No EPA limit set	1/2	SYR4	2013–2016
Dichloroacetic Acid	1.4 µg/L No EPA limit set	1/2	SYR4	2013–2016
Total Haloacetic Acids (HAA5)	1.4 µg/L 2.3% of the EPA limit 60 µg/L	1/2	SYR4	2013–2016

60 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MARTIN, ARLYN
Phone: 315-856-0483
Email: [email protected]

Frequently asked questions about Hidden Hollow

Is Hidden Hollow tap water safe to drink?

EPA monitoring detected 10 contaminants in Hidden Hollow'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 Hidden Hollow's water?

EPA monitoring detected Lead, Barium, Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Hidden Hollow serve?

Hidden Hollow reports serving 32 people in New York, per its EPA record.

Has Hidden Hollow had any water quality violations?

The EPA has 43 violations on file for Hidden Hollow, of which 0 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.