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Tap water quality report

Cardinal Hill Subdivision

EPA monitoring tested this supplier for 50 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
13
detected
475
people served
12
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Ground water
Ownership
Private
Counties served
Marshall

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.

12
health-based violations
173
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 2018-10-01 → 2018-10-31
MCL Health-based Resolved 2018-10-01 → 2018-10-31
MCL Health-based Resolved 2018-10-01 → 2018-10-31
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
632.48 µg/L 49%
of the EPA limit 1300 µg/L
worst single sample: 1857.75 µg/L
41/41 SYR4 2012–2018
Nitrate-Nitrite
5365 µg/L 54%
of the EPA limit 10000 µg/L
worst single sample: 5440 µg/L
36/48 SYR4 2012–2019
Lead
0.00041 mg/L 2.7%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2024
Lead
13.805 µg/L 92%
of the EPA limit 15 µg/L
worst single sample: 13.95 µg/L
11/41 SYR4 2012–2018
Barium
92.6 µg/L 4.6%
of the EPA limit 2000 µg/L
worst single sample: 94 µg/L
3/3 SYR4 2014
Gross Beta Particle Activity
2.1 pCi/L
No EPA limit set
worst single sample: 2.12 pCi/L
2/3 SYR4 2015
Antimony, Total
2.36 µg/L 39%
of the EPA limit 6 µg/L
 1/3 SYR4 2014
Arsenic
3.43 µg/L 34%
of the EPA limit 10 µg/L
 1/9 SYR4 2012–2017
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/3 SYR4 2014
Combined Radium (-226 And -228)
0.1570 pCi/L 3.1%
of the EPA limit 5 pCi/L
 1/3 SYR4 2015
Combined Uranium
1.03 µg/L 3.4%
of the EPA limit 30 µg/L
 1/3 SYR4 2015
Gross Alpha, Excl. Radon And U
0.3900 pCi/L 2.6%
of the EPA limit 15 pCi/L
 1/3 SYR4 2015
Selenium
2.07 µg/L 4.1%
of the EPA limit 50 µg/L
 1/3 SYR4 2014
37 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChloroformDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneFluorideMercuryMonobromoacetic AcidMonochloroacetic AcidStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TEXOMA WATER, LLC
Phone
580-564-7069
Email
[email protected]

Frequently asked questions about Cardinal Hill Subdivision

Is Cardinal Hill Subdivision tap water safe to drink?

EPA monitoring detected 13 contaminants in Cardinal Hill Subdivision'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 Cardinal Hill Subdivision's water?

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

How many people does Cardinal Hill Subdivision serve?

Cardinal Hill Subdivision reports serving 475 people in Oklahoma, per its EPA record.

Has Cardinal Hill Subdivision had any water quality violations?

The EPA has 173 violations on file for Cardinal Hill Subdivision, 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.