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Tap water quality report

Cleveland Municipal Authority

EPA monitoring tested this supplier for 81 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
22
detected
3,262
people served
1,095
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Surface water
Ownership
Local government
Counties served
Pawnee

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

1,095
health-based violations
1,332
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
266 µg/L 20%
of the EPA limit 1300 µg/L
worst single sample: 1910 µg/L
136/138 SYR4 2013–2019
Bromodichloromethane
73.48 µg/L
No EPA limit set
worst single sample: 104 µg/L
73/74 SYR4 2012–2019
Chloroform
236.6 µg/L
No EPA limit set
worst single sample: 273 µg/L
73/73 SYR4 2012–2019
Dibromochloromethane
82.795 µg/L
No EPA limit set
worst single sample: 102 µg/L
72/74 SYR4 2012–2019
TTHM
304 µg/L 380%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 354 µg/L
61/61 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
125.1 µg/L 209%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 173 µg/L
59/61 SYR4 2012–2019
Dichloroacetic Acid
74.625 µg/L
No EPA limit set
worst single sample: 96.6 µg/L
52/54 SYR4 2012–2019
Trichloroacetic Acid
54.005 µg/L
No EPA limit set
worst single sample: 82.8 µg/L
50/54 SYR4 2012–2019
Lead
0.0046 mg/L 31%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2025
Bromoform
55.76 µg/L
No EPA limit set
worst single sample: 84.7 µg/L
28/74 SYR4 2012–2019
Dibromoacetic Acid
16.33 µg/L
No EPA limit set
worst single sample: 20.7 µg/L
23/54 SYR4 2012–2019
Nitrate-Nitrite
401.15 µg/L 4%
of the EPA limit 10000 µg/L
worst single sample: 419 µg/L
18/22 SYR4 2012–2019
Lead
50.94 µg/L 340%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 59 µg/L
14/138 SYR4 2013–2019
Monochloroacetic Acid
14.12 µg/L
No EPA limit set
worst single sample: 16.7 µg/L
13/54 SYR4 2012–2019
Combined Radium (-226 And -228)
0.8445 pCi/L 17%
of the EPA limit 5 pCi/L
worst single sample: 0.9500 pCi/L
6/6 SYR4 2013–2015
Gross Beta Particle Activity
5.0775 pCi/L
No EPA limit set
worst single sample: 5.08 pCi/L
6/6 SYR4 2013–2015
Gross Alpha, Excl. Radon And U
2.71 pCi/L 18%
of the EPA limit 15 pCi/L
worst single sample: 3.03 pCi/L
5/6 SYR4 2013–2015
Dalapon
2.8795 µg/L 1.4%
of the EPA limit 200 µg/L
worst single sample: 2.97 µg/L
2/6 SYR4 2017–2019
Monobromoacetic Acid
1.2975 µg/L
No EPA limit set
worst single sample: 1.31 µg/L
2/54 SYR4 2012–2019
Nitrate
110 µg/L 1.1%
of the EPA limit 10000 µg/L
 2/2 SYR4 2012
Barium
24 µg/L 1.2%
of the EPA limit 2000 µg/L
 1/1 SYR4 2016
Fluoride
180 µg/L 4.5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2016
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CLEVELAND MUNICIPAL AUTHORITY
Phone
918-645-4292
Email
[email protected]

Frequently asked questions about Cleveland Municipal Authority

Is Cleveland Municipal Authority tap water safe to drink?

EPA monitoring detected 22 contaminants in Cleveland Municipal Authority's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Cleveland Municipal Authority's water?

EPA monitoring detected Copper, Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does Cleveland Municipal Authority serve?

Cleveland Municipal Authority reports serving 3,262 people in Oklahoma, per its EPA record.

Has Cleveland Municipal Authority had any water quality violations?

The EPA has 1332 violations on file for Cleveland Municipal Authority, of which 1095 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.