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Tap water quality report

Midwest City, OK

EPA monitoring detected 25 contaminants across the 1 water supplier serving Midwest City. 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
55,935
people served
25
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Midwest City'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
959 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Barium
514.2 µg/L 26%
of the EPA limit 2000 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Nitrate-Nitrite
421.5 µg/L 4.2%
of the EPA limit 10000 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Copper
240.4 µg/L 18%
of the EPA limit 1300 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Chlorite
233.8 µg/L 23%
of the EPA limit 1000 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
TTHM
100.925 µg/L 126%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Chloroform
50.475 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
34.45 µg/L 57%
of the EPA limit 60 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Bromodichloromethane
29.2 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Lithium
17.4 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2025
1/1 UCMR-5
Lead
17.18 µg/L 115%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Trichloroacetic Acid
17.05 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Chromium
15.5 µg/L 16%
of the EPA limit 100 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Dichloroacetic Acid
14.25 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Dibromochloromethane
14.16 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
7.2225 pCi/L 48%
of the EPA limit 15 pCi/L
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Gross Beta Particle Activity
4.14 pCi/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Combined Uranium
3.66 µg/L 12%
of the EPA limit 30 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Monochloroacetic Acid
3.33 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Bromoform
3.1215 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.938 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
2.6435 pCi/L 53%
of the EPA limit 5 pCi/L
Main supplier: MIDWEST CITY · 55,935 people · 2018
1/1 SYR4
Dalapon
1.64 µg/L 0.8%
of the EPA limit 200 µg/L
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Monobromoacetic Acid
1.133 µg/L
No EPA limit set
Main supplier: MIDWEST CITY · 55,935 people · 2019
1/1 SYR4
Lead
0.0012 mg/L 8%
of the EPA limit 0.0150 mg/L
Main supplier: MIDWEST CITY · 55,935 people · 2025
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 Midwest City

SupplierPopulation served
MIDWEST CITY 55,935

Frequently asked questions about Midwest City tap water

Is Midwest City tap water safe to drink?

EPA testing detected 25 contaminants in the water serving Midwest City. 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 Midwest City?

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

What contaminants are in Midwest City's water?

The contaminants EPA monitoring detected in Midwest City include Fluoride, Barium, Nitrate-Nitrite, Copper, Chlorite. 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.