Is Comanche Co Rwd #2 Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Comanche

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.

health-based violations

111

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
MCL	Health-based	Resolved	2004-11-01 → 2004-11-30
MCL	Health-based	Resolved	2004-11-01 → 2004-11-30
MCL	Health-based	Resolved	2004-11-01 → 2004-11-30
MCL	Health-based	Resolved	2004-11-01 → 2004-11-30
MCL	Health-based	Resolved	1997-05-01 → 1997-05-31
MCL	Health-based	Resolved	1995-12-01 → 1995-12-31
MCL	Health-based	Resolved	1995-12-01 → 1995-12-31
MCL	Health-based	Resolved	1994-09-01 → 1994-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	263.2 µg/L 20% of the EPA limit 1300 µg/L worst single sample: 601 µg/L	65/70	SYR4	2012–2017
TTHM	36.325 µg/L 45% of the EPA limit 80 µg/L worst single sample: 42.4 µg/L	16/21	SYR4	2012–2019
Lead	0.0011 mg/L 7.5% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Nitrate-Nitrite	4920 µg/L 49% of the EPA limit 10000 µg/L	14/14	SYR4	2012–2019
Dibromochloromethane	11 µg/L No EPA limit set worst single sample: 11.6 µg/L	13/26	SYR4	2012–2019
Bromodichloromethane	13.05 µg/L No EPA limit set worst single sample: 14.7 µg/L	12/26	SYR4	2012–2019
Bromoform	8.54 µg/L No EPA limit set worst single sample: 8.67 µg/L	11/26	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	7.8815 µg/L 13% of the EPA limit 60 µg/L worst single sample: 7.94 µg/L	10/21	SYR4	2012–2019
Chloroform	10.92 µg/L No EPA limit set worst single sample: 11.2 µg/L	8/26	SYR4	2012–2019
Lead	8.625 µg/L 57% of the EPA limit 15 µg/L worst single sample: 8.8 µg/L	8/70	SYR4	2012–2017
Combined Uranium	2.5325 µg/L 8.4% of the EPA limit 30 µg/L worst single sample: 2.56 µg/L	6/6	SYR4	2014–2018
Dibromoacetic Acid	4.265 µg/L No EPA limit set worst single sample: 4.68 µg/L	6/15	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	16.8575 pCi/L 112% of the EPA limit, at the 95th percentile of samples — 15 pCi/L worst single sample: 19.8 pCi/L	6/6	SYR4	2014–2018
Gross Beta Particle Activity	9.845 pCi/L No EPA limit set worst single sample: 11.8 pCi/L	6/6	SYR4	2014–2018
Combined Radium (-226 And -228)	0.7784 pCi/L 16% of the EPA limit 5 pCi/L worst single sample: 0.7900 pCi/L	5/6	SYR4	2014–2018
Barium	69.7 µg/L 3.5% of the EPA limit 2000 µg/L worst single sample: 70 µg/L	2/2	SYR4	2015–2017
Dichloroacetic Acid	4.5815 µg/L No EPA limit set worst single sample: 4.65 µg/L	2/15	SYR4	2012–2019
Fluoride	328.5 µg/L 8.2% of the EPA limit 4000 µg/L worst single sample: 330 µg/L	2/2	SYR4	2015–2017
Xylenes, Total	3.259 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 3.38 µg/L	2/13	SYR4	2014–2019
Benzene	4.82 µg/L 96% of the EPA limit 5 µg/L	1/13	SYR4	2014–2019
Di(2-ethylhexyl) Phthalate	5.5 µg/L 92% of the EPA limit 6 µg/L	1/2	SYR4	2019
Ethylbenzene	0.5200 µg/L 0.1% of the EPA limit 700 µg/L	1/13	SYR4	2014–2019
Monobromoacetic Acid	1.5 µg/L No EPA limit set	1/15	SYR4	2012–2019
Toluene	1.45 µg/L 0.1% of the EPA limit 1000 µg/L	1/13	SYR4	2014–2019

55 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-GammaBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: COMANCHE CO RWD #2
Phone: 580-588-3330
Email: ccrwd@wichitaonline.net

Frequently asked questions about Comanche Co Rwd #2

Is Comanche Co Rwd #2 tap water safe to drink?

EPA monitoring detected 24 contaminants in Comanche Co Rwd #2'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 Comanche Co Rwd #2's water?

EPA monitoring detected Copper, TTHM, Lead, Nitrate-Nitrite, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Comanche Co Rwd #2 serve?

Comanche Co Rwd #2 reports serving 1,840 people in Oklahoma, per its EPA record.

Has Comanche Co Rwd #2 had any water quality violations?

The EPA has 111 violations on file for Comanche Co Rwd #2, of which 12 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.