Is Tecumseh Utility Authority Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Pottawatomie

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.

564

health-based violations

749

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfba	0.0084 µg/L	4/4	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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Chloroform	71.24 µg/L No EPA limit set worst single sample: 88.6 µg/L	47/67	SYR4	2012–2019
TTHM	124 µg/L 155% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 131 µg/L	41/58	SYR4	2012–2019
Dibromochloromethane	20.35 µg/L No EPA limit set worst single sample: 26.5 µg/L	40/67	SYR4	2012–2019
Dichloroacetic Acid	38.62 µg/L No EPA limit set worst single sample: 48 µg/L	39/58	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	77.72 µg/L 130% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 98 µg/L	39/58	SYR4	2012–2019
Bromodichloromethane	36.415 µg/L No EPA limit set worst single sample: 39.4 µg/L	38/67	SYR4	2012–2019
Trichloroacetic Acid	36.205 µg/L No EPA limit set worst single sample: 48.7 µg/L	32/58	SYR4	2012–2019
Copper	26 µg/L 2% of the EPA limit 1300 µg/L worst single sample: 28 µg/L	24/100	SYR4	2012–2019
Dibromoacetic Acid	8.52 µg/L No EPA limit set worst single sample: 10.5 µg/L	21/58	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	20/20	LCR	2026
Bromoform	8.445 µg/L No EPA limit set worst single sample: 8.55 µg/L	15/67	SYR4	2012–2019
Combined Radium (-226 And -228)	0.5697 pCi/L 11% of the EPA limit 5 pCi/L worst single sample: 0.6630 pCi/L	6/6	SYR4	2014–2015
Gross Beta Particle Activity	8.0025 pCi/L No EPA limit set worst single sample: 8.48 pCi/L	6/6	SYR4	2014–2015
Barium	139.4 µg/L 7% of the EPA limit 2000 µg/L worst single sample: 144 µg/L	5/5	SYR4	2013–2017
Gross Alpha, Excl. Radon And U	4.318 pCi/L 29% of the EPA limit 15 pCi/L worst single sample: 4.97 pCi/L	5/6	SYR4	2014–2015
Monochloroacetic Acid	8.442 µg/L No EPA limit set worst single sample: 9.09 µg/L	5/58	SYR4	2012–2019
Fluoride	244 µg/L 6.1% of the EPA limit 4000 µg/L worst single sample: 250 µg/L	3/5	SYR4	2013–2017
Monobromoacetic Acid	1.365 µg/L No EPA limit set worst single sample: 1.39 µg/L	3/58	SYR4	2012–2019
Nitrate	150 µg/L 1.5% of the EPA limit 10000 µg/L	2/2	SYR4	2012
Nitrate-Nitrite	458.5 µg/L 4.6% of the EPA limit 10000 µg/L worst single sample: 460 µg/L	2/8	SYR4	2013–2019
Cadmium	1.8 µg/L 36% of the EPA limit 5 µg/L	1/5	SYR4	2013–2017
Lithium	30 µg/L No EPA limit set	1/4	UCMR-5	2024

59 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, TotalChlorobenzeneCarbon TetrachlorideChromiumCombined UraniumDichloromethaneEthylbenzeneHfpo-DaLeadMercuryNetfosaaNfdhaNmefosaaNitritePFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: TECUMSEH
Phone: 405-598-2188
Email: [email protected]

Frequently asked questions about Tecumseh Utility Authority

Is Tecumseh Utility Authority tap water safe to drink?

EPA monitoring detected 23 contaminants in Tecumseh Utility 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 Tecumseh Utility Authority's water?

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

How many people does Tecumseh Utility Authority serve?

Tecumseh Utility Authority reports serving 6,098 people in Oklahoma, per its EPA record.

Has Tecumseh Utility Authority had any water quality violations?

The EPA has 749 violations on file for Tecumseh Utility Authority, of which 564 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.