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Tap water quality report

Shelby, NY

EPA monitoring detected 19 contaminants across the 2 water suppliers serving Shelby. 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
1,200
people served
19
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Shelby'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
Fluoride
1001 µg/L 25%
of the EPA limit 4000 µg/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019
1/2 SYR4
Nitrate
200 µg/L 2%
of the EPA limit 10000 µg/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2016
1/2 SYR4
Nitrate-Nitrite
194.39 µg/L 1.9%
of the EPA limit 10000 µg/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019
1/2 SYR4
TTHM
106.405 µg/L 133%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Chloroform
80.87499999999999 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
58.14999999999999 µg/L 97%
of the EPA limit 60 µg/L
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Dichloroacetic Acid
33.4 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Trichloroacetic Acid
22.48 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Barium
21.365 µg/L 1.1%
of the EPA limit 2000 µg/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019
1/2 SYR4
Bromodichloromethane
19.389999999999997 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Monochloroacetic Acid
5.332 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
Highest in the city: 9 µg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2013
2/2 SYR4
Dibromochloromethane
6.4475 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Monobromoacetic Acid
2.9774999999999965 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Dibromoacetic Acid
1.9925 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Arsenic
0.8900 µg/L 8.9%
of the EPA limit 10 µg/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019
1/2 SYR4
Bromoform
0.7320 µg/L
No EPA limit set
Main supplier: SHELBY TOWN WDS · 1,200 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
0.1200 pCi/L 2.4%
of the EPA limit 5 pCi/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2014
1/2 SYR4
Combined Uranium
0.0360 µg/L 0.1%
of the EPA limit 30 µg/L
Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2014
1/2 SYR4
Lead
0.0014 mg/L 9.3%
of the EPA limit 0.0150 mg/L
Main supplier: SHELBY TOWN WDS · 1,200 people · 2025
Highest in the city: 0.0060 mg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2023
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 Shelby

SupplierPopulation served
SHELBY TOWN WDS 1,200
NIAGARA COUNTY WATER DISTRICT 0

Frequently asked questions about Shelby tap water

Is Shelby tap water safe to drink?

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

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

What contaminants are in Shelby's water?

The contaminants EPA monitoring detected in Shelby include Fluoride, Nitrate, Nitrate-Nitrite, 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.