Cardwell Public Water System
EPA ID: MO4010137 · 533 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Cardwell Public Water System (MO4010137): 2 unresolved EPA violations on record. Not yet resolved: 2 EPA violations at Cardwell Public Water System, affecting about 533 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Cardwell Public Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Cardwell Public Water System serves a community with a median household income of $31,257 and an estimated 1,709 residents across its service area. Approximately 81% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 90% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Cardwell Public Water System's water is pumped from underground aquifers. 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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Detected Contaminants
How Cardwell Public Water System compares to EPA limits
What This Means For You
PFOA at 1 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 1 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Chlorodibromomethane at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Bromate at 1 mg/L exceeds the EPA maximum of 0.01 mg/L.
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Chlorodibromomethane was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Cardwell Public Water System (EPA ID: MO4010137) is a community water system in Missouri that serves approximately 533 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 29 resolved, 0 archived, 0 addressed, and 2 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 |
|---|---|---|---|
| October 1, 2025 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| July 2, 2025 | Stage 2 DBP Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | PFOA | Non-health-based | Resolved |
| July 1, 2025 | PFNA | Non-health-based | Resolved |
| July 1, 2025 | Monochloroacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Dichloroacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Bromodichloromethane | Non-health-based | Resolved |
| July 1, 2025 | Dibromochloromethane | Non-health-based | Resolved |
| July 1, 2025 | Bromoform | Non-health-based | Resolved |
| July 1, 2025 | Chlorodibromomethane | Non-health-based | Resolved |
| July 1, 2025 | Trichloroacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Monobromoacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Dibromoacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Bromochloroacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Bromodichloroacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Chlorodibromoacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | Tribromoacetic Acid | Non-health-based | Resolved |
| July 1, 2025 | HAA6Br | Non-health-based | Resolved |
| July 1, 2025 | HAA9 | Non-health-based | Resolved |
| July 1, 2025 | Bromate | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 4 | No |
| PFOA | PFAS | 1 | No |
| PFNA | PFAS | 1 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 1 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 1 | No |
| Bromodichloromethane | Disinfection Byproducts | 1 | No |
| Dibromochloromethane | Disinfection Byproducts | 1 | No |
| Bromoform | Disinfection Byproducts | 1 | No |
| Chlorodibromomethane | Disinfection Byproducts | 1 | No |
| Trichloroacetic Acid | Disinfection Byproducts | 1 | No |
| Monobromoacetic Acid | Disinfection Byproducts | 1 | No |
| Dibromoacetic Acid | Disinfection Byproducts | 1 | No |
| Bromochloroacetic Acid | Disinfection Byproducts | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00159 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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 the full compliance record for Cardwell Public Water System (MO4010137) on EPA.gov.
Frequently Asked Questions
Is Cardwell Public Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Cardwell Public Water System serve?
Cardwell Public Water System serves approximately 533 people across 2 ZIP codes in Missouri.
Where does Cardwell Public Water System get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cardwell Public Water System (MO): 31 EPA Violations. https://zipcheckup.com/water-system/mo4010137/
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title = {{Cardwell Public Water System (MO): 31 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/mo4010137/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Cardwell Public Water System (EPA ID: MO4010137) - request the latest Consumer Confidence Report or ask about specific contaminants.