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Tap water quality report

Old Concho Water Users

EPA monitoring tested this supplier for 35 contaminants and detected 4. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

35
contaminants tested
4
detected
40
people served
23
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
GWP
Ownership
Private
Counties served
Apache

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.

23
health-based violations
414
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2019-07-07
TT Health-based Unaddressed 2019-06-21
TT Health-based Resolved 2016-08-14
MCL Health-based Resolved 2015-08-01 → 2015-08-31
MCL Health-based Resolved 2015-08-01 → 2015-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2013-12-01 → 2013-12-31
MCL Health-based Resolved 2013-12-01 → 2013-12-31
MCL Health-based Resolved 2013-09-01 → 2013-09-30

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
Copper
125 µg/L 9.6%
of the EPA limit 1300 µg/L
worst single sample: 170 µg/L
16/25 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Lead
10.47 µg/L 70%
of the EPA limit 15 µg/L
worst single sample: 12 µg/L
7/25 SYR4 2012–2019
Lithium
13 µg/L
No EPA limit set
 1/1 UCMR-5 2025
31 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaTTHMTotal Haloacetic Acids (HAA5)

Utility contact

Contact
THOMPSON, JULIANNE
Phone
314-464-4084
Email
[email protected]

Frequently asked questions about Old Concho Water Users

Is Old Concho Water Users tap water safe to drink?

EPA monitoring detected 4 contaminants in Old Concho Water Users'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 Old Concho Water Users's water?

EPA monitoring detected Copper, Lead, Lead, Lithium. The full list with the level and data source for each is above.

How many people does Old Concho Water Users serve?

Old Concho Water Users reports serving 40 people in Missouri, per its EPA record.

Has Old Concho Water Users had any water quality violations?

The EPA has 414 violations on file for Old Concho Water Users, of which 23 are health-based (a contaminant limit or required treatment was breached) and 2 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.