Is Osage Co Rwd #20 (Hulah) Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Osage

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.

1,102

health-based violations

1,181

violations on file

still open

Violation	Type	Status	Period
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
MCL	Health-based	Archived	2025-04-01 → 2025-06-30
MCL	Health-based	Archived	2025-04-01 → 2025-06-30
MCL	Health-based	Archived	2025-04-01 → 2025-06-30
MCL	Health-based	Archived	2025-04-01 → 2025-06-30
MCL	Health-based	Archived	2025-04-01 → 2025-06-30
MCL	Health-based	Archived	2025-04-01 → 2025-06-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	50.63 µg/L No EPA limit set worst single sample: 52 µg/L	34/34	SYR4	2012–2019
Chloroform	325.95 µg/L No EPA limit set worst single sample: 485 µg/L	34/34	SYR4	2012–2019
Dichloroacetic Acid	193 µg/L No EPA limit set worst single sample: 511 µg/L	33/33	SYR4	2012–2019
TTHM	351 µg/L 439% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 531 µg/L	33/33	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	295.6 µg/L 493% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 606 µg/L	33/33	SYR4	2012–2019
Trichloroacetic Acid	108.2 µg/L No EPA limit set worst single sample: 115 µg/L	33/33	SYR4	2012–2019
Dibromochloromethane	16.25 µg/L No EPA limit set worst single sample: 19.2 µg/L	31/34	SYR4	2012–2019
Lead	0.0037 mg/L 25% of the EPA limit 0.0150 mg/L	26/26	LCR	2025
Copper	262.85 µg/L 20% of the EPA limit 1300 µg/L worst single sample: 412 µg/L	20/20	SYR4	2012–2019
Dibromoacetic Acid	2.915 µg/L No EPA limit set worst single sample: 2.96 µg/L	10/33	SYR4	2012–2019
Monochloroacetic Acid	39.2 µg/L No EPA limit set worst single sample: 41.3 µg/L	8/33	SYR4	2012–2019
Monobromoacetic Acid	1.6775 µg/L No EPA limit set worst single sample: 1.69 µg/L	6/33	SYR4	2012–2019
Nitrate-Nitrite	199.2 µg/L 2% of the EPA limit 10000 µg/L worst single sample: 208 µg/L	3/9	SYR4	2012–2019
Bromoform	1.2135 µg/L No EPA limit set worst single sample: 1.22 µg/L	2/34	SYR4	2012–2019
Combined Radium (-226 And -228)	0.8264 pCi/L 17% of the EPA limit 5 pCi/L worst single sample: 0.8550 pCi/L	2/2	SYR4	2013–2014
Gross Alpha, Excl. Radon And U	0.9165 pCi/L 6.1% of the EPA limit 15 pCi/L worst single sample: 0.9200 pCi/L	2/2	SYR4	2013–2014
Gross Beta Particle Activity	2.782 pCi/L No EPA limit set worst single sample: 2.81 pCi/L	2/2	SYR4	2013–2014
Nitrate	120 µg/L 1.2% of the EPA limit 10000 µg/L	2/2	SYR4	2012
Barium	71 µg/L 3.6% of the EPA limit 2000 µg/L	1/1	SYR4	2013
Combined Uranium	1.13 µg/L 3.8% of the EPA limit 30 µg/L	1/2	SYR4	2013–2014
Dalapon	3.81 µg/L 1.9% of the EPA limit 200 µg/L	1/1	SYR4	2019
Fluoride	190 µg/L 4.8% of the EPA limit 4000 µg/L	1/1	SYR4	2013
Hexachlorocyclopentadiene	0.1400 µg/L 0.3% of the EPA limit 50 µg/L	1/2	SYR4	2013–2019

53 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDi(2-ethylhexyl) AdipateDinosebEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideLassoLeadMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: HULAH WATER DIST # 20
Phone: 918-336-0008
Email: [email protected]

Frequently asked questions about Osage Co Rwd #20 (Hulah)

Is Osage Co Rwd #20 (Hulah) tap water safe to drink?

EPA monitoring detected 23 contaminants in Osage Co Rwd #20 (Hulah)'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 Osage Co Rwd #20 (Hulah)'s water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Osage Co Rwd #20 (Hulah) serve?

Osage Co Rwd #20 (Hulah) reports serving 350 people in Oklahoma, per its EPA record.

Has Osage Co Rwd #20 (Hulah) had any water quality violations?

The EPA has 1181 violations on file for Osage Co Rwd #20 (Hulah), of which 1102 are health-based (a contaminant limit or required treatment was breached) and 1 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.