Cass County Pwsd 11
EPA ID: MO1021082 · 1,948 people served · 4 ZIP codes
ZipCheckup's reading of EPA records for Cass County Pwsd 11 (MO1021082): 1 violation on record since 2021. Per the federal file, all 1 violation logged for Cass County Pwsd 11 carry a resolved status, and around 1,948 people get water from this system.
Data: EPA SDWIS
Service Area Map
Coverage area for Cass County Pwsd 11 Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: C
Demographics of ZIP Codes Served
The ZIP codes associated with Cass County Pwsd 11 have a median household income of $76,907 and about 21,595 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 53% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Cass County Pwsd 11's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 1 detection recorded.
Comparable Water Systems
Similar-sized systems in Missouri
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Cass County Pwsd 11 (EPA ID: MO1021082) is a community water system in Missouri that serves approximately 1,948 people from groundwater sources.
This system provides water to 4 ZIP codes across 4 communities.
ZIP-Area Home Safety Context: C (63/100)
This is the average Home Safety Score for 3 of 4 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| December 30, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Lead and Copper Rule | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0014 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
4 of 4 ZIP records with known zones are in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by MO or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Cass County Pwsd 11 (MO1021082) on EPA.gov.
Frequently Asked Questions
Is Cass County Pwsd 11 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Cass County Pwsd 11; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Cass County Pwsd 11 serve?
Cass County Pwsd 11 serves approximately 1,948 people across 4 ZIP codes in Missouri.
Where does Cass County Pwsd 11 get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cass County Pwsd 11 (MO): 1 EPA Violation. https://zipcheckup.com/water-system/mo1021082/
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title = {{Cass County Pwsd 11 (MO): 1 EPA Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/mo1021082/}
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What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Cass County Pwsd 11 (EPA ID: MO1021082) - request the latest Consumer Confidence Report or ask about specific contaminants.