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Tap water quality report

Cass County Pwsd 7

EPA monitoring tested this supplier for 98 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

98
contaminants tested
20
detected
4,143
people served
5
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Surface water
Ownership
Local government
Counties served
Cass

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.

5
health-based violations
5
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2014-07-01 → 2014-09-30
TT Health-based Resolved 2014-07-01 → 2014-09-30
TT Health-based Resolved 2014-07-01 → 2014-09-30
TT Health-based Resolved 2014-07-01 → 2014-09-30
TT Health-based Resolved 2014-07-01 → 2014-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0034 µg/L 1/3 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
18.485 µg/L
No EPA limit set
worst single sample: 22.3 µg/L
88/88 SYR4 2012–2019
Chloroform
55.6 µg/L
No EPA limit set
worst single sample: 227 µg/L
88/88 SYR4 2012–2019
Dibromochloromethane
5.1725 µg/L
No EPA limit set
worst single sample: 6.24 µg/L
88/88 SYR4 2012–2019
TTHM
77.88 µg/L 97%
of the EPA limit 80 µg/L
worst single sample: 253 µg/L
80/80 SYR4 2012–2019
Dichloroacetic Acid
28.695 µg/L
No EPA limit set
worst single sample: 147 µg/L
78/79 SYR4 2012–2019
Trichloroacetic Acid
15.745 µg/L
No EPA limit set
worst single sample: 17.5 µg/L
78/79 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
45.3 µg/L 76%
of the EPA limit 60 µg/L
worst single sample: 164 µg/L
71/79 SYR4 2012–2019
Copper
722.95 µg/L 56%
of the EPA limit 1300 µg/L
worst single sample: 1380 µg/L
68/68 SYR4 2012–2019
Lead
8.172 µg/L 54%
of the EPA limit 15 µg/L
worst single sample: 11 µg/L
28/68 SYR4 2012–2019
Atrazine
1.555 µg/L 52%
of the EPA limit 3 µg/L
worst single sample: 2.72 µg/L
26/32 SYR4 2012–2019
Lead
0.0029 mg/L 19%
of the EPA limit 0.0150 mg/L
 26/26 LCR 2025
Monobromoacetic Acid
11.95 µg/L
No EPA limit set
worst single sample: 16 µg/L
26/79 SYR4 2012–2019
Nitrate-Nitrite
330 µg/L 3.3%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Dibromoacetic Acid
1.976 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
13/79 SYR4 2012–2019
Barium
104.3 µg/L 5.2%
of the EPA limit 2000 µg/L
worst single sample: 105 µg/L
8/8 SYR4 2012–2019
Fluoride
187.5 µg/L 4.7%
of the EPA limit 4000 µg/L
worst single sample: 210 µg/L
6/8 SYR4 2012–2019
Chromium
2.246 µg/L 2.2%
of the EPA limit 100 µg/L
worst single sample: 2.3 µg/L
4/8 SYR4 2012–2019
Arsenic
1.028 µg/L 10%
of the EPA limit 10 µg/L
worst single sample: 1.03 µg/L
3/8 SYR4 2012–2019
Monochloroacetic Acid
8.44 µg/L
No EPA limit set
worst single sample: 8.81 µg/L
3/79 SYR4 2012–2019
78 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, TotalBhc-GammaBenzeneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
THOMAS, ROBERT
Phone
816-779-6625
Email
[email protected]

Frequently asked questions about Cass County Pwsd 7

Is Cass County Pwsd 7 tap water safe to drink?

EPA monitoring detected 20 contaminants in Cass County Pwsd 7'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 Cass County Pwsd 7's water?

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

How many people does Cass County Pwsd 7 serve?

Cass County Pwsd 7 reports serving 4,143 people in Missouri, per its EPA record.

Has Cass County Pwsd 7 had any water quality violations?

The EPA has 5 violations on file for Cass County Pwsd 7, of which 5 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.