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Poteau Valley Improvement Authority

EPA monitoring tested this supplier for 50 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
16
detected
10
people served
77
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Surface water
Ownership
Local government
Counties served
Le Flore

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.

77
health-based violations
111
violations on file
0
still open
ViolationTypeStatusPeriod
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 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
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

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
Bromodichloromethane
14.945 µg/L
No EPA limit set
worst single sample: 21.2 µg/L
142/142 SYR4 2012–2019
Chloroform
124.9 µg/L
No EPA limit set
worst single sample: 168 µg/L
142/142 SYR4 2012–2019
TTHM
147 µg/L 184%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 183 µg/L
141/141 SYR4 2012–2019
Dichloroacetic Acid
41.705 µg/L
No EPA limit set
worst single sample: 49.5 µg/L
140/140 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
74.25 µg/L 124%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 95 µg/L
140/140 SYR4 2012–2019
Trichloroacetic Acid
29.6 µg/L
No EPA limit set
worst single sample: 43.3 µg/L
140/140 SYR4 2012–2019
Dibromochloromethane
3.958 µg/L
No EPA limit set
worst single sample: 5.55 µg/L
107/142 SYR4 2012–2019
Monochloroacetic Acid
8.865 µg/L
No EPA limit set
worst single sample: 15.1 µg/L
36/140 SYR4 2012–2019
Fluoride
747.5 µg/L 19%
of the EPA limit 4000 µg/L
worst single sample: 1160 µg/L
34/34 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Copper
148.35 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 210 µg/L
10/20 SYR4 2012–2019
Dibromoacetic Acid
2.988 µg/L
No EPA limit set
worst single sample: 3.33 µg/L
10/140 SYR4 2012–2019
Nitrate-Nitrite
150 µg/L 1.5%
of the EPA limit 10000 µg/L
 4/16 SYR4 2012–2019
Barium
13.7 µg/L 0.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Gross Beta Particle Activity
1.07 pCi/L
No EPA limit set
 1/2 SYR4 2013–2019
Lead
5.4 µg/L 36%
of the EPA limit 15 µg/L
 1/20 SYR4 2012–2019
34 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBenzeneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneEthylbenzeneGross Alpha, Excl. Radon And UMercuryMonobromoacetic AcidSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
POTEAU VALLEY IMPROVEMENT AUTHORITY
Phone
918-647-9946
Email
[email protected]

Frequently asked questions about Poteau Valley Improvement Authority

Is Poteau Valley Improvement Authority tap water safe to drink?

EPA monitoring detected 16 contaminants in Poteau Valley Improvement 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 Poteau Valley Improvement Authority's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, 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 Poteau Valley Improvement Authority serve?

Poteau Valley Improvement Authority reports serving 10 people in Oklahoma, per its EPA record.

Has Poteau Valley Improvement Authority had any water quality violations?

The EPA has 111 violations on file for Poteau Valley Improvement Authority, of which 77 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.