Tap WaterIndex

Tap water quality report

Choctaw Ua

EPA monitoring tested this supplier for 109 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
16
detected
3,926
people served
5
health-based violations
Water source
Ground water
Ownership
Local government
Counties served
Oklahoma

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.

5
health-based violations
306
violations on file
5
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-09-01 → 2003-09-30
MCL Health-based Resolved 2003-09-01 → 2003-09-30
MCL Health-based Resolved 2003-09-01 → 2003-09-30
MCL Health-based Resolved 2003-09-01 → 2003-09-30
MCL Health-based Resolved 1992-08-01 → 1992-08-31
MR Monitoring Archived 2025-10-01 → 2025-12-31
MR Monitoring Archived 2025-10-01 → 2025-12-31
MR Monitoring Archived 2025-10-01 → 2025-12-31
MR Monitoring Archived 2025-10-01 → 2025-12-31
MR Monitoring Archived 2025-10-01 → 2025-12-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
150.5 µg/L 12%
of the EPA limit 1300 µg/L
 143/150 SYR4 2012–2019
Nitrate-Nitrite
5750 µg/L 57%
of the EPA limit 10000 µg/L
 82/90 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
16.31 pCi/L 109%
of the EPA limit, in the worst sample — 15 pCi/L
 22/22 SYR4 2012–2019
Combined Uranium
8.3 µg/L 28%
of the EPA limit 30 µg/L
 19/22 SYR4 2012–2019
Barium
510 µg/L 26%
of the EPA limit 2000 µg/L
 17/17 SYR4 2012–2018
Lead
0.0114 mg/L 76%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Gross Beta Particle Activity
7.852 pCi/L
No EPA limit set
 14/22 SYR4 2012–2019
Chromium
20.5 µg/L 21%
of the EPA limit 100 µg/L
 12/17 SYR4 2012–2018
Combined Radium (-226 And -228)
1.42 pCi/L 28%
of the EPA limit 5 pCi/L
 10/22 SYR4 2012–2019
Fluoride
380 µg/L 9.5%
of the EPA limit 4000 µg/L
 7/17 SYR4 2012–2018
Lithium
18.1 µg/L
No EPA limit set
 6/10 UCMR-5 2024
Arsenic
2.9 µg/L 29%
of the EPA limit 10 µg/L
 5/23 SYR4 2012–2019
Dibromochloromethane
1.4 µg/L
No EPA limit set
 2/16 SYR4 2012–2019
TTHM
4.6 µg/L 5.8%
of the EPA limit 80 µg/L
 2/7 SYR4 2014–2019
Bromodichloromethane
1.7 µg/L
No EPA limit set
 1/16 SYR4 2012–2019
Chloroform
1.5 µg/L
No EPA limit set
 1/16 SYR4 2012–2019
93 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Choctaw Ua

Is Choctaw Ua tap water safe to drink?

EPA monitoring detected 16 contaminants in Choctaw Ua'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 Choctaw Ua's water?

EPA monitoring detected Copper, Nitrate-Nitrite, Gross Alpha, Excl. Radon And U, Combined Uranium, Barium, and others. The full list with the level and data source for each is above.

How many people does Choctaw Ua serve?

Choctaw Ua reports serving 3,926 people, per its EPA record.

Has Choctaw Ua had any water quality violations?

The EPA has 306 violations on file for Choctaw Ua, of which 5 are health-based (a contaminant limit or required treatment was breached) and 5 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.