Tap WaterIndex

← Oklahoma

Tap water quality report

Ottawa Co Rwd #6

EPA monitoring tested this supplier for 50 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
9
detected
560
people served
11
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Ground water
Ownership
Local government
Counties served
Ottawa

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.

11
health-based violations
329
violations on file
3
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
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 1995-10-01 → 1995-10-31
MCL Health-based Resolved 1995-09-01 → 1995-09-30
MCL Health-based Resolved 1995-09-01 → 1995-09-30
MCL Health-based Resolved 1994-11-01 → 1994-11-30

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
34.08 µg/L 2.6%
of the EPA limit 1300 µg/L
worst single sample: 36 µg/L
13/20 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2026
Barium
58.815 µg/L 2.9%
of the EPA limit 2000 µg/L
worst single sample: 60.3 µg/L
2/2 SYR4 2019
Bromoform
2.02 µg/L
No EPA limit set
worst single sample: 2.1 µg/L
2/10 SYR4 2012–2019
Combined Radium (-226 And -228)
3.0075 pCi/L 60%
of the EPA limit 5 pCi/L
worst single sample: 3.08 pCi/L
2/2 SYR4 2016
Fluoride
689.5 µg/L 17%
of the EPA limit 4000 µg/L
worst single sample: 690 µg/L
2/2 SYR4 2019
Gross Alpha, Excl. Radon And U
4.26 pCi/L 28%
of the EPA limit 15 pCi/L
 1/2 SYR4 2016
Gross Beta Particle Activity
5.63 pCi/L
No EPA limit set
 1/2 SYR4 2016
TTHM
2.1 µg/L 2.6%
of the EPA limit 80 µg/L
 1/8 SYR4 2012–2019
41 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBenzeneBeryllium, TotalBromodichloromethaneChlorobenzeneCadmiumCarbon TetrachlorideChloroformChromiumCombined UraniumDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
OTTAWA CO RWD #6
Phone
918-542-9967
Email
[email protected]

Frequently asked questions about Ottawa Co Rwd #6

Is Ottawa Co Rwd #6 tap water safe to drink?

EPA monitoring detected 9 contaminants in Ottawa Co Rwd #6'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 Ottawa Co Rwd #6's water?

EPA monitoring detected Copper, Lead, Barium, Bromoform, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Ottawa Co Rwd #6 serve?

Ottawa Co Rwd #6 reports serving 560 people in Oklahoma, per its EPA record.

Has Ottawa Co Rwd #6 had any water quality violations?

The EPA has 329 violations on file for Ottawa Co Rwd #6, of which 11 are health-based (a contaminant limit or required treatment was breached) and 3 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.