Tap WaterIndex

← New York

Tap water quality report

Cohoes City

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
18,447
people served
14
health-based violations
New York rankingsLead in New YorkPFAS in New York
Water source
Surface water
Ownership
Local government
Counties served
Albany

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.

14
health-based violations
61
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2025-01-01 → 2025-01-31
TT Health-based Resolved 2025-01-01 → 2025-01-31
TT Health-based Resolved 2025-01-01 → 2025-01-31
TT Health-based Resolved 2021-11-01
TT Health-based Resolved 2021-11-01
TT Health-based Resolved 2021-11-01
MCL Health-based Resolved 2000-10-01 → 2000-12-31
MCL Health-based Resolved 2000-10-01 → 2000-12-31
MCL Health-based Resolved 2000-07-01 → 2000-09-30
MCL Health-based Resolved 2000-07-01 → 2000-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chloroform
71.17 µg/L
No EPA limit set
worst single sample: 97 µg/L
104/104 SYR4 2013–2019
Dichloroacetic Acid
19.62 µg/L
No EPA limit set
worst single sample: 29.6 µg/L
104/104 SYR4 2013–2019
Bromodichloromethane
12.93 µg/L
No EPA limit set
worst single sample: 13.8 µg/L
103/104 SYR4 2013–2019
TTHM
86.19 µg/L 108%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 109 µg/L
103/103 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
41.1 µg/L 69%
of the EPA limit 60 µg/L
worst single sample: 63.7 µg/L
103/103 SYR4 2013–2019
Trichloroacetic Acid
25 µg/L
No EPA limit set
worst single sample: 34.1 µg/L
101/104 SYR4 2013–2019
Monochloroacetic Acid
2.46 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
45/105 SYR4 2013–2019
Dibromochloromethane
3.46 µg/L
No EPA limit set
worst single sample: 11.8 µg/L
35/104 SYR4 2013–2019
Monobromoacetic Acid
1.46 µg/L
No EPA limit set
worst single sample: 1.77 µg/L
26/105 SYR4 2013–2019
Nitrate
805 µg/L 8.1%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Dibromoacetic Acid
1.3125 µg/L
No EPA limit set
worst single sample: 1.33 µg/L
8/104 SYR4 2013–2019
Barium
26.85 µg/L 1.3%
of the EPA limit 2000 µg/L
worst single sample: 27 µg/L
7/8 SYR4 2012–2019
Arsenic
0.6000 µg/L 6%
of the EPA limit 10 µg/L
 1/8 SYR4 2012–2019
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/8 SYR4 2012–2019
Combined Radium (-226 And -228)
0.3100 pCi/L 6.2%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
86 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneFluorideGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HENNESSEY, STEVE
Phone
518-528-2303
Email
[email protected]

Frequently asked questions about Cohoes City

Is Cohoes City tap water safe to drink?

EPA monitoring detected 16 contaminants in Cohoes City'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 Cohoes City's water?

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

How many people does Cohoes City serve?

Cohoes City reports serving 18,447 people in New York, per its EPA record.

Has Cohoes City had any water quality violations?

The EPA has 61 violations on file for Cohoes City, of which 14 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.