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Tap water quality report

Okla Ordnance Works Authority

EPA monitoring tested this supplier for 100 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

100
contaminants tested
22
detected
4,000
people served
20
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Surface water
Ownership
State government
Counties served
Mayes

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.

20
health-based violations
37
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2013-12-01 → 2013-12-31
TT Health-based Resolved 2013-12-01 → 2013-12-31
TT Health-based Resolved 2013-12-01 → 2013-12-31
MCL Health-based Resolved 1987-08-01 → 1987-10-31
MCL Health-based Resolved 1987-08-01 → 1987-10-31
MCL Health-based Resolved 1987-08-01 → 1987-10-31
MCL Health-based Resolved 1987-08-01 → 1987-10-31
MCL Health-based Resolved 1987-08-01 → 1987-10-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFOS 0.0057 µg/L 1/4 2024

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
969.9 µg/L 97%
of the EPA limit 1000 µg/L
worst single sample: 1190 µg/L
143/144 SYR4 2012–2019
TTHM
84.275 µg/L 105%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 120 µg/L
96/96 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
64.65 µg/L 108%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 91.2 µg/L
96/96 SYR4 2012–2019
Bromodichloromethane
18.67 µg/L
No EPA limit set
worst single sample: 20.9 µg/L
63/63 SYR4 2013–2019
Chloroform
59.94 µg/L
No EPA limit set
worst single sample: 63.6 µg/L
63/63 SYR4 2013–2019
Dibromochloromethane
10.7 µg/L
No EPA limit set
worst single sample: 13.5 µg/L
61/63 SYR4 2013–2019
Dichloroacetic Acid
30.105 µg/L
No EPA limit set
worst single sample: 36.1 µg/L
60/60 SYR4 2013–2019
Trichloroacetic Acid
22.86 µg/L
No EPA limit set
worst single sample: 26.9 µg/L
60/60 SYR4 2013–2019
Copper
576.7 µg/L 44%
of the EPA limit 1300 µg/L
worst single sample: 700 µg/L
59/60 SYR4 2012–2018
Dibromoacetic Acid
2.426 µg/L
No EPA limit set
worst single sample: 2.7 µg/L
33/60 SYR4 2013–2019
Fluoride
628 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 810 µg/L
33/33 SYR4 2015–2019
Monochloroacetic Acid
5.7025 µg/L
No EPA limit set
worst single sample: 6.79 µg/L
16/60 SYR4 2013–2019
Nitrate-Nitrite
1400 µg/L 14%
of the EPA limit 10000 µg/L
 16/20 SYR4 2012–2019
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Lead
52.58 µg/L 351%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 70.4 µg/L
12/60 SYR4 2012–2018
Monobromoacetic Acid
1.545 µg/L
No EPA limit set
worst single sample: 1.59 µg/L
7/60 SYR4 2013–2019
Bromoform
1.68 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
6/63 SYR4 2013–2019
Atrazine
0.4476 µg/L 15%
of the EPA limit 3 µg/L
worst single sample: 0.4520 µg/L
2/2 SYR4 2018–2019
Gross Beta Particle Activity
3.76275 pCi/L
No EPA limit set
worst single sample: 3.83 pCi/L
2/2 SYR4 2012–2019
Barium
49 µg/L 2.5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
0.6540 pCi/L 4.4%
of the EPA limit 15 pCi/L
 1/2 SYR4 2012–2019
78 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
OKLAHOMA ORDINANCE WORKS AUTHORITY
Phone
918-825-3500
Email
[email protected]

Frequently asked questions about Okla Ordnance Works Authority

Is Okla Ordnance Works Authority tap water safe to drink?

EPA monitoring detected 22 contaminants in Okla Ordnance Works Authority'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 Okla Ordnance Works Authority's water?

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

How many people does Okla Ordnance Works Authority serve?

Okla Ordnance Works Authority reports serving 4,000 people in Oklahoma, per its EPA record.

Has Okla Ordnance Works Authority had any water quality violations?

The EPA has 37 violations on file for Okla Ordnance Works Authority, of which 20 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.