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Tap water quality report

Ketchum, OK

EPA monitoring detected 15 contaminants across the 1 water supplier serving Ketchum. 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
4,025
people served
15
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Ketchum'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-Nitrite
1570 µg/L 16%
of the EPA limit 10000 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Copper
366.3999999999999 µg/L 28%
of the EPA limit 1300 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2018
1/1 SYR4
TTHM
83.13999999999996 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Chloroform
71.8 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Barium
56.1 µg/L 2.8%
of the EPA limit 2000 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2013
1/1 SYR4
Total Haloacetic Acids (HAA5)
53.174999999999976 µg/L 89%
of the EPA limit 60 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Trichloroacetic Acid
27.124999999999986 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Dichloroacetic Acid
24.254999999999985 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Bromodichloromethane
12.2 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Monochloroacetic Acid
9.605999999999998 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Dibromochloromethane
2.58 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Lead
1.9442499999999996 µg/L 13%
of the EPA limit 15 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2018
1/1 SYR4
Monobromoacetic Acid
1.5585 µg/L
No EPA limit set
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Atrazine
0.7470 µg/L 25%
of the EPA limit 3 µg/L
Main supplier: KETCHUM PWA · 4,025 people · 2019
1/1 SYR4
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
Main supplier: KETCHUM PWA · 4,025 people · 2024
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 Ketchum

SupplierPopulation served
KETCHUM PWA 4,025

Frequently asked questions about Ketchum tap water

Is Ketchum tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Ketchum. 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 Ketchum?

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

What contaminants are in Ketchum's water?

The contaminants EPA monitoring detected in Ketchum include Nitrate-Nitrite, Copper, TTHM, Chloroform, 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.