Dublin, OH: High Radon Risk — 68/100 (2026)
2 ZIP codes · 4 water systems · Updated 2026-06-03
Dublin, OH: middle-tier water safety by the latest federal monitoring.
How Dublin Compares
Data: EPA SDWIS Last verified: 2026-06-03
Dublin Water: The Quick Version
- Average lead level: 0.0031 mg/L.
- Homes built before 1986: 30% — older plumbing may contain lead solder.
- Estimated remediation: $3,000 per household.
- CDC health risk index: 12.21 — above typical levels.
Water Systems Serving Dublin
Dublin, OH is covered by 3 major water utilities out of 4 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.
Overview
We track water quality and home safety data for 2 ZIP codes in Dublin, Ohio (population ~85,936), covering 4 community water systems serving approximately 1,481,733 people region-wide.
No EPA violations recorded across any ZIP codes in Dublin — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Dublin: C (68/100)
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
Dublin water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0031 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 |
|---|---|---|---|
| 43016 | B | Ponderosa Estates Mhp | 216 |
| 43017 | C | COLUMBUS PUBLIC WATER SYSTEM | 1,305,946 |
All ZIP Codes in Dublin
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.
CDC Health Data for Dublin
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 Old Is Dublin's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Plumbing risk in residential housing tracks directly to construction era: pre-1986 homes may have lead-soldered copper joints; pre-1970 homes may have lead pipes outright. Dublin's median build year of 1995 places the city in a moderate risk zone where neither era dominates the housing inventory. Understanding which side of the 1986 threshold a specific property falls on — and whether it predates 1970 — is the most actionable starting point for a homeowner trying to assess their own tap water exposure.
Most homes in Dublin were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Dublin: Remediation Cost in Perspective
In Dublin, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Dublin are relatively low compared to home values. The $2,000–$4,100 estimated range is a small fraction of median property value. Home values are 159% above the Ohio average.
Protecting Children from Lead in Dublin
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.
In Dublin, the older-stock footprint runs at 30% — a contained slice — and aggregate utility readings land safely under the EPA action mark. That keeps lead off the local priority list, with a one-faucet draw remaining the only direct read on a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Dublin
Over the multi-decade window covered by the National Flood Insurance Program, Dublin has accumulated 26 claims — a total that suggests more than isolated flood exposure. With 100% of ZIP codes in designated flood zones, the water-quality implications of flooding move from hypothetical to periodically relevant: treatment intake can be compromised, wells can be infiltrated, and distribution backflow can occur.
Dublin has a moderate flood history with 26 FEMA claims averaging $11,554 per payout. 100% 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>$3,000</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 Dublin
- 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 Dublin, OH