Is Mcalester Pwa Tap Water Safe? Quality Report

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

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.

925

health-based violations

990

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	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-07-01 → 2024-07-31
TT	Health-based	Resolved	2024-07-01 → 2024-07-31
TT	Health-based	Resolved	2024-07-01 → 2024-07-31

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
TTHM	125 µg/L 156% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 157 µg/L	141/141	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	71 µg/L 118% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 98.8 µg/L	141/141	SYR4	2012–2019
Chloroform	106.35 µg/L No EPA limit set worst single sample: 136 µg/L	132/132	SYR4	2012–2019
Bromodichloromethane	18.15 µg/L No EPA limit set worst single sample: 22.4 µg/L	131/132	SYR4	2012–2019
Trichloroacetic Acid	41.82 µg/L No EPA limit set worst single sample: 57.7 µg/L	129/129	SYR4	2012–2019
Dichloroacetic Acid	35.73 µg/L No EPA limit set worst single sample: 50 µg/L	128/129	SYR4	2012–2019
Copper	553 µg/L 43% of the EPA limit 1300 µg/L worst single sample: 1760 µg/L	126/150	SYR4	2013–2019
Dibromochloromethane	3.8235 µg/L No EPA limit set worst single sample: 4.62 µg/L	92/132	SYR4	2012–2019
Monochloroacetic Acid	8.025 µg/L No EPA limit set worst single sample: 10.1 µg/L	28/129	SYR4	2012–2019
Lead	63.965 µg/L 426% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 77.4 µg/L	24/150	SYR4	2013–2019
Lead	0.0036 mg/L 24% of the EPA limit 0.0150 mg/L	15/15	LCR	2025
Dibromoacetic Acid	1.389 µg/L No EPA limit set worst single sample: 1.4 µg/L	12/129	SYR4	2012–2019
Nitrate-Nitrite	274 µg/L 2.7% of the EPA limit 10000 µg/L	6/16	SYR4	2012–2019
Combined Radium (-226 And -228)	2.29665 pCi/L 46% of the EPA limit 5 pCi/L worst single sample: 2.36 pCi/L	2/2	SYR4	2016–2017
Gross Beta Particle Activity	2.8715 pCi/L No EPA limit set worst single sample: 2.89 pCi/L	2/2	SYR4	2016–2017
Barium	54.4 µg/L 2.7% of the EPA limit 2000 µg/L	1/1	SYR4	2012
Bromate	13.2 µg/L 132% of the EPA limit, at the 95th percentile of samples — 10 µg/L	1/25	SYR4	2017–2019
Dalapon	1.29 µg/L 0.6% of the EPA limit 200 µg/L	1/7	SYR4	2017–2019
Di(2-ethylhexyl) Phthalate	2.42 µg/L 40% of the EPA limit 6 µg/L	1/2	SYR4	2017
Gross Alpha, Excl. Radon And U	0.9900 pCi/L 6.6% of the EPA limit 15 pCi/L	1/2	SYR4	2016–2017
Picloram	0.0800 µg/L 0% of the EPA limit 500 µg/L	1/11	SYR4	2012–2019

84 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDinosebDiquatEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MCALESTER PWA
Phone: 918-423-9300
Email: [email protected]

Frequently asked questions about Mcalester Pwa

Is Mcalester Pwa tap water safe to drink?

EPA monitoring detected 21 contaminants in Mcalester Pwa'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 Mcalester Pwa's water?

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

How many people does Mcalester Pwa serve?

Mcalester Pwa reports serving 18,206 people in Oklahoma, per its EPA record.

Has Mcalester Pwa had any water quality violations?

The EPA has 990 violations on file for Mcalester Pwa, of which 925 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.