Irwin, OH: High Radon Risk — 57/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
If you're checking Irwin, OH tap water safety, the short answer is: average — violations are present in parts of the city and specifics depend on which water system serves your address.
How Irwin Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Irwin Residents
- Average lead level: 0.0076 mg/L.
- Homes built before 1986: 82% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 12.17 — above typical levels.
Irwin's Water Providers
Most residential addresses in Irwin, OH are served by a single water utility — the dominant system among the 1 provider tracked in federal data.
Overview
We track water quality and home safety data for 1 ZIP code in Irwin, Ohio, covering 1 community water system serving approximately 524 people.
No EPA violations recorded across any ZIP codes in Irwin — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Irwin: C (57/100)
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
Irwin water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0076 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)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 43029 | C | Rosedale Bible Institute | 175 |
All ZIP Codes in Irwin
- 43029 [C]
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.
Irwin 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
Irwin Infrastructure Age
With 82% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Viewed through the lens of construction era, Irwin is predominantly an older city — a median build year of 1953 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Irwin were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Irwin
Placing remediation in the context of Irwin's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Irwin are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 32% above the Ohio average.
Irwin: 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.
Practically, the structural drivers in Irwin — 82% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Irwin
- 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. With 82% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Irwin, OH