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Tap water quality report

Colonie, NY

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Colonie. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
93,620
people served
18
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Colonie's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
700 µg/L 7%
of the EPA limit 10000 µg/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
1/2 SYR4
TTHM
69.9 µg/L 87%
of the EPA limit 80 µg/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Chloroform
52.79 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
43.495 µg/L 72%
of the EPA limit 60 µg/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
Highest in the city: 51.245 µg/L — COLONIE VILLAGE · 8,030 people · 2019
2/2 SYR4
Barium
30.32 µg/L 1.5%
of the EPA limit 2000 µg/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
1/2 SYR4
Trichloroacetic Acid
23.95 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
Highest in the city: 25.84 µg/L — COLONIE VILLAGE · 8,030 people · 2019
2/2 SYR4
Dichloroacetic Acid
18.475 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
Highest in the city: 23.645 µg/L — COLONIE VILLAGE · 8,030 people · 2019
2/2 SYR4
Bromodichloromethane
13.8 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Bromoform
10 µg/L
No EPA limit set
Highest in the city: COLONIE VILLAGE · 8,030 people · 2019
1/2 SYR4
Monochloroacetic Acid
8.1225 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Dibromochloromethane
5.53 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Monobromoacetic Acid
3.85 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Dibromoacetic Acid
2.2 µg/L
No EPA limit set
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
1.3 pCi/L 8.7%
of the EPA limit 15 pCi/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2017
1/2 SYR4
Combined Radium (-226 And -228)
0.3640 pCi/L 7.3%
of the EPA limit 5 pCi/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2017
1/2 SYR4
Combined Uranium
0.0230 µg/L 0.1%
of the EPA limit 30 µg/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2017
1/2 SYR4
PFOA
0.0083 µg/L
No EPA limit set
Highest in the city: COLONIE VILLAGE · 8,030 people · 2023
1/2 UCMR-5
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: LATHAM WATER DISTRICT · 85,590 people · 2024
2/2 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Colonie

SupplierPopulation served
LATHAM WATER DISTRICT 85,590
COLONIE VILLAGE 8,030

Frequently asked questions about Colonie tap water

Is Colonie tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Colonie. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Colonie?

2 public water suppliers report drinking-water monitoring for Colonie, New York to the EPA. Each is listed above with its population served.

What contaminants are in Colonie's water?

The contaminants EPA monitoring detected in Colonie include Nitrate, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Barium. The full list, with the level at the main supplier and the data source, is in the table above.

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.