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Tap water quality report

Frederick, OK

EPA monitoring detected 25 contaminants across the 1 water supplier serving Frederick. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
3,940
people served
25
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Frederick's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Chlorite
1510 µg/L 151%
of the EPA limit, in the worst sample — 1000 µg/L
 1/1 SYR4
Copper
834 µg/L 64%
of the EPA limit 1300 µg/L
 1/1 SYR4
Nitrate-Nitrite
530 µg/L 5.3%
of the EPA limit 10000 µg/L
 1/1 SYR4
TTHM
274.2 µg/L 343%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Fluoride
250 µg/L 6.3%
of the EPA limit 4000 µg/L
 1/1 SYR4
Barium
180 µg/L 9%
of the EPA limit 2000 µg/L
 1/1 SYR4
Bromoform
147 µg/L
No EPA limit set
 1/1 SYR4
Dibromochloromethane
89.7 µg/L
No EPA limit set
 1/1 SYR4
Total Haloacetic Acids (HAA5)
58 µg/L 97%
of the EPA limit 60 µg/L
 1/1 SYR4
Bromodichloromethane
56.6 µg/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
45.9 µg/L
No EPA limit set
 1/1 SYR4
Chloroform
31.2 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
9.9 µg/L
No EPA limit set
 1/1 SYR4
Gross Beta Particle Activity
9.517 pCi/L
No EPA limit set
 1/1 SYR4
Lead
7.1 µg/L 47%
of the EPA limit 15 µg/L
 1/1 SYR4
Monobromoacetic Acid
6.2 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
5 µg/L
No EPA limit set
 1/1 SYR4
Arsenic
3.4 µg/L 34%
of the EPA limit 10 µg/L
 1/1 SYR4
Monochloroacetic Acid
2.9 µg/L
No EPA limit set
 1/1 SYR4
Combined Uranium
1.6 µg/L 5.3%
of the EPA limit 30 µg/L
 1/1 SYR4
Gross Alpha, Excl. Radon And U
1.072 pCi/L 7.1%
of the EPA limit 15 pCi/L
 1/1 SYR4
Combined Radium (-226 And -228)
0.9900 pCi/L 20%
of the EPA limit 5 pCi/L
 1/1 SYR4
Pfba
0.0125 µg/L
No EPA limit set
 1/1 UCMR-5
PFHXS
0.0030 µg/L
No EPA limit set
 1/1 UCMR-5
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Frederick

SupplierPopulation served
FREDERICK 3,940

Frequently asked questions about Frederick tap water

Is Frederick tap water safe to drink?

EPA testing detected 25 contaminants in the water serving Frederick. 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 Frederick?

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

What contaminants are in Frederick's water?

The contaminants EPA monitoring detected in Frederick include Chlorite, Copper, Nitrate-Nitrite, TTHM, Fluoride. The full list, with the highest level found 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.