Marion
Is Marion tap water safe to drink?
Use extra caution — Marion scores 50/100. This report aggregates EPA drinking water data across 6 local systems in Marion. We found 442 total violations (280 unresolved).
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Marion?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Wondering if Marion tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Marion tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Marion, water quality belongs on your due-diligence checklist alongside schools and crime data. With a score of 50/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Marion
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Marion.
Frequently Asked Questions
Is Marion tap water safe to drink?
Use extra caution — Marion scores 50/100.
How many water systems serve Marion?
Marion is served by 6 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Marion?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Marion.
What is the water quality score for Marion?
The water quality score for Marion is 50 out of 100, based on EPA contaminant data, violation history, and testing results across the 6 systems serving the city.
What are the top contaminants in Marion?
The top contaminants detected in Marion include Lead (90th percentile). View detailed information on our contaminants page.
Marion Water Quality Summary
Marion, IL receives a water quality score of 50/100 (Grade D) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 6 public water systems serving the area.
Marion's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.
Marion's score of 50 is 16 points below the Illinois state average of 66, and below the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Illinois water quality rankings report →
Key Contaminants
Get notified if Marion's water quality changes
Free email alert when the EPA reports a new violation or boil-water advisory for your water system. No spam — just the alerts you asked for.
By subscribing you agree to receive occasional water-quality alert emails. Unsubscribe anytime. See our Privacy Policy.
Water Systems Serving Marion (6)
Lake Of Egypt Pwd
FFerges Water District
AHighway 37 North Pwd
DMarion
CFci-Marion
FCoal Valley Pwd
BCheck Your Specific Address
Water quality can vary by neighborhood in Marion.
Related
Quick compare in Illinois
Compare Marion water quality: View all states · Contaminant library · How we score water quality