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Tap water quality report

Ryan, OK

EPA monitoring detected 14 contaminants across the 1 water supplier serving Ryan. 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
800
people served
14
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Ryan'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
TTHM
327.34 µg/L 409%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Copper
253.65 µg/L 20%
of the EPA limit 1300 µg/L
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2018
1/1 SYR4
Chloroform
201.25 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
190.15 µg/L 317%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Bromodichloromethane
98.135 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Trichloroacetic Acid
88.8 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Dichloroacetic Acid
87.1 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Dibromochloromethane
81.97 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Bromoform
25.125 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Dibromoacetic Acid
20.535 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Lead
11.233 µg/L 75%
of the EPA limit 15 µg/L
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2018
1/1 SYR4
Monochloroacetic Acid
11.04 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Monobromoacetic Acid
6.66 µg/L
No EPA limit set
Main supplier: RYAN UTILITIES AUTHORITY · 800 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: RYAN UTILITIES AUTHORITY · 800 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 Ryan

SupplierPopulation served
RYAN UTILITIES AUTHORITY 800

Frequently asked questions about Ryan tap water

Is Ryan tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Ryan. 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 Ryan?

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

What contaminants are in Ryan's water?

The contaminants EPA monitoring detected in Ryan include TTHM, Copper, Chloroform, Total Haloacetic Acids (HAA5), Bromodichloromethane. 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.