West Prairie Water Company
EPA ID: IL0410030 · 4,800 people served · 1 ZIP code
Since the flagged events, West Prairie Water Company resolved all 1 violation — compliant today, 4,800 residents served.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for West Prairie Water Company Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The West Prairie Water Company serves a community with a median household income of $76,960 and an estimated 4,484 residents across its service area. Approximately 73% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
West Prairie Water Company'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.
About 2% of homes in Moultrie County, Illinois rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How West Prairie Water Company compares to EPA limits
What This Means For You
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Illinois
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
West Prairie Water Company (EPA ID: IL0410030) is a community water system in Illinois that serves approximately 4,800 people from groundwater sources.
This system serves ZIP code 61911 in Arthur.
Average Home Safety Score: D (40/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 61911 | 0.02 mg/L | Yes | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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
- 61911 — Arthur
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for West Prairie Water Company (IL0410030) on EPA.gov.
Frequently Asked Questions
Is West Prairie Water Company water safe to drink?
West Prairie Water Company has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does West Prairie Water Company serve?
West Prairie Water Company serves approximately 4,800 people across 1 ZIP code in Illinois.
Where does West Prairie Water Company get its water?
The primary water source is groundwater.
Frequently Asked Questions
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
West Prairie Water Company (EPA ID: IL0410030) — request the latest Consumer Confidence Report or ask about specific contaminants.