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Tap water quality report

Guthrie

EPA monitoring tested this supplier for 81 contaminants and detected 26. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
26
detected
9,925
people served
61
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Surface water
Ownership
Local government
Counties served
Logan

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.

61
health-based violations
85
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2021-07-01 → 2021-07-31
TT Health-based Resolved 2021-04-01 → 2021-06-30
TT Health-based Resolved 2021-04-01 → 2021-06-30
TT Health-based Resolved 2021-04-01 → 2021-06-30
TT Health-based Resolved 2021-04-01 → 2021-06-30
TT Health-based Resolved 2021-01-01 → 2021-03-31
TT Health-based Resolved 2021-01-01 → 2021-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0084 µg/L 2/3 2025
PFBS 0.0038 µg/L 1/3 2025
Pfhxa 0.0044 µg/L 1/3 2025
Pfpea 0.0048 µg/L 1/3 2025

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
Chlorite
896.25 µg/L 90%
of the EPA limit 1000 µg/L
worst single sample: 1070 µg/L
96/96 SYR4 2012–2019
Fluoride
583 µg/L 15%
of the EPA limit 4000 µg/L
worst single sample: 690 µg/L
95/95 SYR4 2012–2019
Copper
591.75 µg/L 46%
of the EPA limit 1300 µg/L
worst single sample: 1430 µg/L
56/60 SYR4 2013–2019
Bromodichloromethane
20.125 µg/L
No EPA limit set
worst single sample: 23.2 µg/L
36/36 SYR4 2012–2019
Chloroform
10.8 µg/L
No EPA limit set
worst single sample: 12.7 µg/L
36/36 SYR4 2012–2019
Dibromochloromethane
24.1 µg/L
No EPA limit set
worst single sample: 26.8 µg/L
36/36 SYR4 2012–2019
Bromoform
18.785 µg/L
No EPA limit set
worst single sample: 21.4 µg/L
34/36 SYR4 2012–2019
TTHM
69.02 µg/L 86%
of the EPA limit 80 µg/L
worst single sample: 74.7 µg/L
33/33 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
20.44 µg/L 34%
of the EPA limit 60 µg/L
worst single sample: 25.3 µg/L
33/33 SYR4 2012–2019
Dibromoacetic Acid
7.8775 µg/L
No EPA limit set
worst single sample: 9.03 µg/L
32/33 SYR4 2012–2019
Dichloroacetic Acid
10.042 µg/L
No EPA limit set
worst single sample: 13.3 µg/L
32/33 SYR4 2012–2019
Trichloroacetic Acid
3.97 µg/L
No EPA limit set
worst single sample: 4.15 µg/L
16/33 SYR4 2012–2019
Lead
0.0046 mg/L 31%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Nitrate-Nitrite
1130 µg/L 11%
of the EPA limit 10000 µg/L
 12/18 SYR4 2012–2019
Monobromoacetic Acid
1.579 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
8/33 SYR4 2012–2019
Lead
106.25 µg/L 708%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 132 µg/L
6/60 SYR4 2013–2019
Gross Beta Particle Activity
3.9365 pCi/L
No EPA limit set
worst single sample: 4.03 pCi/L
2/2 SYR4 2013–2019
Barium
153 µg/L 7.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2016
Combined Radium (-226 And -228)
0.5700 pCi/L 11%
of the EPA limit 5 pCi/L
 1/2 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
0.9030 pCi/L 6%
of the EPA limit 15 pCi/L
 1/2 SYR4 2013–2019
Monochloroacetic Acid
6.15 µg/L
No EPA limit set
 1/33 SYR4 2012–2019
Lithium
12 µg/L
No EPA limit set
 1/4 UCMR-5 2025
55 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined UraniumDichloromethaneEthylbenzeneHfpo-DaMercuryNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GUTHRIE
Phone
405-282-2489
Email
[email protected]

Frequently asked questions about Guthrie

Is Guthrie tap water safe to drink?

EPA monitoring detected 26 contaminants in Guthrie'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 Guthrie's water?

EPA monitoring detected Chlorite, Fluoride, Copper, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Guthrie serve?

Guthrie reports serving 9,925 people in Oklahoma, per its EPA record.

Has Guthrie had any water quality violations?

The EPA has 85 violations on file for Guthrie, of which 61 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.