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Tap water quality report

Lockport, NY

EPA monitoring detected 19 contaminants across the 3 water suppliers serving Lockport. 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.

3
water suppliers
42,270
people served
19
contaminants found
New York rankings Lead in New York PFAS in New York

What was found in Lockport'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
1100 µg/L 28%
of the EPA limit 4000 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2018
2/3 SYR4
Nitrate
470 µg/L 4.7%
of the EPA limit 10000 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
2/3 SYR4
Nitrate-Nitrite
446.9 µg/L 4.5%
of the EPA limit 10000 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
2/3 SYR4
TTHM
69.19399999999997 µg/L 86%
of the EPA limit 80 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
3/3 SYR4
Chloroform
43.345 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
Highest in the city: 44.649499999999996 µg/L — LOCKPORT TOWN WDS · 21,105 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
31.915 µg/L 53%
of the EPA limit 60 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
Highest in the city: 36.214 µg/L — LOCKPORT TOWN WDS · 21,105 people · 2019
3/3 SYR4
Dichloroacetic Acid
19.7 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
Highest in the city: 21.5675 µg/L — LOCKPORT TOWN WDS · 21,105 people · 2019
3/3 SYR4
Barium
21.34 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2018
Highest in the city: 21.365 µg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2019
2/3 SYR4
Bromodichloromethane
17.552 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
3/3 SYR4
Trichloroacetic Acid
11.381 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
Highest in the city: 12.993999999999998 µg/L — LOCKPORT TOWN WDS · 21,105 people · 2019
3/3 SYR4
Monochloroacetic Acid
6.7725 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
Highest in the city: 9 µg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2013
3/3 SYR4
Dibromochloromethane
6.61 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
3/3 SYR4
Monobromoacetic Acid
6.322499999999996 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
3/3 SYR4
Dibromoacetic Acid
2.8474999999999993 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
Highest in the city: 3.3 µg/L — LOCKPORT TOWN WDS · 21,105 people · 2019
3/3 SYR4
Bromoform
2.895 µg/L
No EPA limit set
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2019
3/3 SYR4
Arsenic
0.5000 µg/L 5%
of the EPA limit 10 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2018
Highest in the city: 0.8900 µg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2019
2/3 SYR4
Combined Radium (-226 And -228)
0.7440 pCi/L 15%
of the EPA limit 5 pCi/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2017
2/3 SYR4
Combined Uranium
0.0800 µg/L 0.3%
of the EPA limit 30 µg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2017
2/3 SYR4
Lead
0.0100 mg/L 67%
of the EPA limit 0.0150 mg/L
Main supplier: LOCKPORT CITY WTP · 21,165 people · 2023
3/3 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 Lockport

SupplierPopulation served
LOCKPORT CITY WTP 21,165
LOCKPORT TOWN WDS 21,105
NIAGARA COUNTY WATER DISTRICT 0

Frequently asked questions about Lockport tap water

Is Lockport tap water safe to drink?

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

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

What contaminants are in Lockport's water?

The contaminants EPA monitoring detected in Lockport 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.