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Tap water quality report

Guilderland, NY

EPA monitoring detected 19 contaminants across the 1 water supplier serving Guilderland. 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.

1
water supplier
30,000
people served
19
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Guilderland'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
2260 µg/L 23%
of the EPA limit 10000 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Fluoride
938 µg/L 23%
of the EPA limit 4000 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Barium
168 µg/L 8.4%
of the EPA limit 2000 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
TTHM
110.8 µg/L 139%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Chloroform
97.175 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
68.05 µg/L 113%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Cyanide
47.59 µg/L 24%
of the EPA limit 200 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Trichloroacetic Acid
47.57 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Dichloroacetic Acid
22.95 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Bromodichloromethane
14.05 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Monochloroacetic Acid
4.17 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Dibromochloromethane
3.59 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
2.58 pCi/L 52%
of the EPA limit 5 pCi/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2017
1/1 SYR4
Monobromoacetic Acid
1.736 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.42 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Bromoform
1.1 µg/L
No EPA limit set
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Arsenic
0.5000 µg/L 5%
of the EPA limit 10 µg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2019
1/1 SYR4
Lead
0.0028 mg/L 19%
of the EPA limit 0.0150 mg/L
Main supplier: GUILDERLAND TOWN WD · 30,000 people · 2023
1/1 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 Guilderland

SupplierPopulation served
GUILDERLAND TOWN WD 30,000

Frequently asked questions about Guilderland tap water

Is Guilderland tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Guilderland. 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 Guilderland?

1 public water supplier report drinking-water monitoring for Guilderland, New York to the EPA. Each is listed above with its population served.

What contaminants are in Guilderland's water?

The contaminants EPA monitoring detected in Guilderland include Nitrate, Fluoride, Barium, TTHM, Chloroform. 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.