Marysville, OH: High Radon Risk — 66/100 (2026)
2 ZIP codes · 2 water systems · Updated 2026-06-03
In recent monitoring cycles, Marysville tap water shows a mixed record for OH — several systems have documented violations alongside areas with clean compliance histories.
How Marysville Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Marysville Residents
- Average lead level: 0.0008 mg/L.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 12.17 — above typical levels.
Marysville's Water Providers
Multiple utilities divide Marysville, OH's water service — 2 leading providers among 2 on the federal register.
Overview
We track water quality and home safety data for 2 ZIP codes in Marysville, Ohio (population ~37,582), covering 2 community water systems serving approximately 175,571 people region-wide.
No EPA violations recorded across any ZIP codes in Marysville — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Marysville: C (66/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Marysville water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0008 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 2 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 43040 | C | Marysville City Public Water System | 25,571 |
| 43041 | C | Marysville City Public Water System | 25,571 |
All ZIP Codes in Marysville
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Marysville Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Remediation Costs Compare in Marysville
Equity impact data for Marysville lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Marysville are relatively low compared to home values. The $1,400–$2,800 estimated range is a small fraction of median property value. Home values are 50% above the Ohio average.
Marysville: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Marysville appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Marysville: Flood History & Water Damage Risk
The NFIP claim record for Marysville — 23 filed incidents — reflects genuine, recurring flood exposure rather than an isolated event or two. When a community accumulates flood claims at this volume and carries 50% of its ZIP codes inside FEMA-designated zones, flood history starts to factor into water quality planning in ways it doesn't for lower-exposure areas. Flooding introduces specific contamination pathways — runoff overwhelming treatment facility intake, surface water infiltrating private wells, and pressure disruptions in distribution systems allowing backflow — all of which become more relevant as flood frequency increases.
Marysville has a moderate flood history with 23 FEMA claims averaging $5,628 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,100</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Marysville
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Marysville, OH