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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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
22.3 µg/L
No EPA limit set
 88/88 SYR4 2012–2019
Chloroform
227 µg/L
No EPA limit set
 88/88 SYR4 2012–2019
Dibromochloromethane
6.24 µg/L
No EPA limit set
 88/88 SYR4 2012–2019
TTHM
253 µg/L 316%
of the EPA limit, in the worst sample — 80 µg/L
 80/80 SYR4 2012–2019
Dichloroacetic Acid
147 µg/L
No EPA limit set
 78/79 SYR4 2012–2019
Trichloroacetic Acid
17.5 µg/L
No EPA limit set
 78/79 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
164 µg/L 273%
of the EPA limit, in the worst sample — 60 µg/L
 71/79 SYR4 2012–2019
Copper
1380 µg/L 106%
of the EPA limit, in the worst sample — 1300 µg/L
 68/68 SYR4 2012–2019
Lead
11 µg/L 73%
of the EPA limit 15 µg/L
 28/68 SYR4 2012–2019
Atrazine
2.72 µg/L 91%
of the EPA limit 3 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
16 µg/L
No EPA limit set
 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
2.3 µg/L
No EPA limit set
 13/79 SYR4 2012–2019
Barium
105 µg/L 5.3%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2019
Fluoride
210 µg/L 5.3%
of the EPA limit 4000 µg/L
 6/8 SYR4 2012–2019
Chromium
2.3 µg/L 2.3%
of the EPA limit 100 µg/L
 4/8 SYR4 2012–2019
Arsenic
1.03 µg/L 10%
of the EPA limit 10 µg/L
 3/8 SYR4 2012–2019
Monochloroacetic Acid
8.81 µg/L
No EPA limit set
 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
publicwater@fairpoint.net

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.