Tap WaterIndex

← Missouri

Tap water quality report

Clay County Pwsd 3

EPA monitoring tested this supplier for 98 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

98
contaminants tested
19
detected
3,447
people served
16
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Local government
Counties served
Clay

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.

16
health-based violations
34
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2016-07-01 → 2016-09-30
MCL Health-based Resolved 2016-07-01 → 2016-09-30
MCL Health-based Resolved 2016-07-01 → 2016-09-30
MCL Health-based Resolved 2016-07-01 → 2016-09-30
MCL Health-based Resolved 2016-04-01 → 2016-06-30
MCL Health-based Resolved 2016-04-01 → 2016-06-30
MCL Health-based Resolved 2016-04-01 → 2016-06-30
MCL Health-based Resolved 2016-04-01 → 2016-06-30
MCL Health-based Resolved 2016-01-01 → 2016-03-31
MCL Health-based Resolved 2016-01-01 → 2016-03-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
18.98 µg/L
No EPA limit set
worst single sample: 22.3 µg/L
59/59 SYR4 2012–2019
Chloroform
73.71 µg/L
No EPA limit set
worst single sample: 83 µg/L
59/59 SYR4 2012–2019
Dibromochloromethane
8.801 µg/L
No EPA limit set
worst single sample: 9.18 µg/L
59/59 SYR4 2012–2019
Dichloroacetic Acid
26.32 µg/L
No EPA limit set
worst single sample: 28.5 µg/L
57/57 SYR4 2012–2019
TTHM
98.24 µg/L 123%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 107 µg/L
57/57 SYR4 2012–2019
Trichloroacetic Acid
14.1 µg/L
No EPA limit set
worst single sample: 16.6 µg/L
57/57 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
45.55 µg/L 76%
of the EPA limit 60 µg/L
worst single sample: 52.7 µg/L
56/57 SYR4 2012–2019
Dibromoacetic Acid
2.815 µg/L
No EPA limit set
worst single sample: 3.05 µg/L
51/57 SYR4 2012–2019
Bromoform
1.719 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
43/59 SYR4 2012–2019
Copper
93.785 µg/L 7.2%
of the EPA limit 1300 µg/L
worst single sample: 105 µg/L
40/42 SYR4 2013–2019
Nitrate-Nitrite
180 µg/L 1.8%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0016 mg/L 11%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Monobromoacetic Acid
8.316 µg/L
No EPA limit set
worst single sample: 9.18 µg/L
13/57 SYR4 2012–2019
Lead
10.0435 µg/L 67%
of the EPA limit 15 µg/L
worst single sample: 11.6 µg/L
12/42 SYR4 2013–2019
Lithium
23 µg/L
No EPA limit set
 3/4 UCMR-5 2024
Barium
100.205 µg/L 5%
of the EPA limit 2000 µg/L
worst single sample: 101 µg/L
2/2 SYR4 2014–2017
Fluoride
198 µg/L 5%
of the EPA limit 4000 µg/L
worst single sample: 200 µg/L
2/2 SYR4 2014–2017
Monochloroacetic Acid
15.465 µg/L
No EPA limit set
worst single sample: 15.7 µg/L
2/57 SYR4 2012–2019
Chromium
2.36 µg/L 2.4%
of the EPA limit 100 µg/L
 1/2 SYR4 2014–2017
79 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
THOMPSON, JACK
Phone
816-320-3343

Frequently asked questions about Clay County Pwsd 3

Is Clay County Pwsd 3 tap water safe to drink?

EPA monitoring detected 19 contaminants in Clay County Pwsd 3'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 Clay County Pwsd 3's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Clay County Pwsd 3 serve?

Clay County Pwsd 3 reports serving 3,447 people in Missouri, per its EPA record.

Has Clay County Pwsd 3 had any water quality violations?

The EPA has 34 violations on file for Clay County Pwsd 3, of which 16 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.