Tap WaterIndex

← Oklahoma

Tap water quality report

Sac & Fox Nation

EPA monitoring tested this supplier for 79 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
21
detected
479
people served
2
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Ground water
Ownership
Native American

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.

2
health-based violations
33
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-01-01 → 2011-03-31
MCL Health-based Resolved 2010-10-01 → 2010-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 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
Combined Radium (-226 And -228)
2.55 pCi/L 51%
of the EPA limit 5 pCi/L
 16/16 SYR4 2012–2017
Combined Uranium
16.9 µg/L 56%
of the EPA limit 30 µg/L
 16/16 SYR4 2012–2017
Nitrate-Nitrite
660 µg/L 6.6%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Copper
183 µg/L 14%
of the EPA limit 1300 µg/L
 15/15 SYR4 2013–2019
Gross Beta Particle Activity
9.48 pCi/L
No EPA limit set
 15/16 SYR4 2012–2017
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2022
Gross Alpha, Excl. Radon And U
13.3 pCi/L 89%
of the EPA limit 15 pCi/L
 12/16 SYR4 2012–2017
Bromoform
9.27 µg/L
No EPA limit set
 7/8 SYR4 2012–2019
Dibromochloromethane
9.41 µg/L
No EPA limit set
 7/8 SYR4 2012–2019
Bromodichloromethane
5.33 µg/L
No EPA limit set
 6/8 SYR4 2012–2019
Ethylbenzene
7.72 µg/L 1.1%
of the EPA limit 700 µg/L
 4/5 SYR4 2012–2019
Lead
2.7 µg/L 18%
of the EPA limit 15 µg/L
 4/15 SYR4 2013–2019
Xylenes, Total
20.4 µg/L 0.2%
of the EPA limit 10000 µg/L
 4/5 SYR4 2012–2019
TTHM
24.2 µg/L 30%
of the EPA limit 80 µg/L
 3/3 SYR4 2012–2017
Barium
243 µg/L 12%
of the EPA limit 2000 µg/L
 2/2 SYR4 2013–2018
Chloroform
2.17 µg/L
No EPA limit set
 2/8 SYR4 2012–2019
Dibromoacetic Acid
1.51 µg/L
No EPA limit set
 2/3 SYR4 2012–2017
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 2/2 SYR4 2013–2018
Total Haloacetic Acids (HAA5)
3.54 µg/L 5.9%
of the EPA limit 60 µg/L
 2/3 SYR4 2012–2017
Atrazine
0.3800 µg/L 13%
of the EPA limit 3 µg/L
 1/2 SYR4 2013–2017
Dichloroacetic Acid
2.03 µg/L
No EPA limit set
 1/3 SYR4 2012–2017
58 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, TotalArsenicBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Audrey Rose Lee
Phone
9189683526
Email
chief@sacandfoxnation-nsn.gov

Frequently asked questions about Sac & Fox Nation

Is Sac & Fox Nation tap water safe to drink?

EPA monitoring detected 21 contaminants in Sac & Fox Nation'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 Sac & Fox Nation's water?

EPA monitoring detected Combined Radium (-226 And -228), Combined Uranium, Nitrate-Nitrite, Copper, Gross Beta Particle Activity, and others. The full list with the level and data source for each is above.

How many people does Sac & Fox Nation serve?

Sac & Fox Nation reports serving 479 people in Oklahoma, per its EPA record.

Has Sac & Fox Nation had any water quality violations?

The EPA has 33 violations on file for Sac & Fox Nation, of which 2 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.