PlainWater
Counties → Missouri

Cass County, Missouri

Water Systems
31
Population Served
625,744
Total Violations
1,771
959 health-based
PFAS Detected
8
of 9 tested

Violation Analysis

100.0%
Systems with Violations
57.1
Avg Violations per System
54.2%
Health-Based Violations

Water Source Types

SW
23 systems (74%)
GW
8 systems (26%)

PFAS Contamination

9
Systems Tested
8
PFAS Detected
88.9%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Cass Missouri water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (31)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Kansas City PWS 513,800 23 Detected
Belton PWS 23,598 32 Detected
Raymore PWS 21,517 33 Clean
Harrisonville PWS 10,019 86 Clean
Pleasant Hill PWS 8,262 71 Detected
Peculiar PWS 6,226 30 Detected
Cass County PWSD 9 6,063 11 Clean
Cass County PWSD 2 4,650 22 Detected
Cass County PWSD 7 4,143 5 Detected
Cass County PWSD 10 3,068 19 -
Cass County PWSD 5 2,875 44 -
Cass County PWSD 3 2,760 17 -
Cass County PWSD 6 2,575 33 -
Cass County PWSD 11 1,948 6 -
Cass County PWSD 4 1,840 9 -
Lake Winnebago PWS 1,600 29 -
MO American Garden City 1,590 414 -
Springdale Lake Estates 1,500 25 -
Archie PWS 1,300 252 -
Drexel PWS 965 142 -
NW Cass County Water Resource District 938 16 -
Southfork MHP 795 32 -
Cass County PWSD 1 723 14 -
Cleveland PWS 690 96 -
Freeman PWS 482 55 -
East Lynne PWS 400 33 -
Creighton PWS 349 156 -
Meadow View Mhc LLC 320 5 -
Crown MHP 300 3 -
Pickering Place 250 9 -
Cass County PWSD 8 198 49 -

Other Counties in Missouri

St. Louis County
23 systems · 1,145,619 served · 1,825 violations
Jackson County
23 systems · 405,266 served · 559 violations
St. Charles County
54 systems · 310,776 served · 2,706 violations
St. Louis city County
1 systems · 304,709 served · 27 violations
Greene County
82 systems · 265,439 served · 7,132 violations
Boone County
13 systems · 228,201 served · 462 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Cass County? ▼
Cass County has 1,771 total drinking water violations across 31 water systems, of which 959 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Cass County systems? ▼
Water systems in Cass County serve approximately 625,744 people through 31 public water systems.
Has PFAS been detected in Cass County water? ▼
Of 9 water systems tested for PFAS in Cass County, 8 had PFAS detected (88.9% detection rate).
What types of water sources supply Cass County? ▼
Water systems in Cass County use SW (23 systems), GW (8 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 54.2% of Cass County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.