Old Washington, OH: High Radon Risk — 40/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
For households across Old Washington, below-average water safety data and recurring compliance violations documented by OH EPA records make it worthwhile to verify the specific system serving your address — system-level detail is the most actionable reference point available.
How Old Washington Compares
Data: EPA SDWIS Last verified: 2026-06-03
Old Washington Water: The Quick Version
- Homes built before 1986: 55% — older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 15.59 — above typical levels.
Water Systems Serving Old Washington
Across most of Old Washington, OH, residential water comes from a single utility. That provider sets rates, manages infrastructure maintenance, and files compliance reports with the EPA on behalf of the households it serves. Federal tracking data shows 1 system on record, but one carries the bulk of the service load.
Overview
We track water quality and home safety data for 1 ZIP code in Old Washington, Ohio (population ~256), covering 1 community water system serving approximately 10,520 people region-wide.
No EPA violations recorded across any ZIP codes in Old Washington — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Old Washington: D (40/100)
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
Old Washington water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Old Washington
- 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 |
|---|---|---|---|
| 43768 | D | CAMBRIDGE, CITY OF | 10,520 |
All ZIP Codes in Old Washington
- 43768 [D]
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 Old Washington
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 Old Washington's Housing Stock?
With 55% 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
Reading the housing age data for Old Washington — median build year 1977 — the overriding implication is that the plumbing materials inside a typical home here reflect pre-1986 construction standards. In practical terms, that means lead-soldered copper joints are common across much of the housing stock. Where those materials are present, water can leach lead as it moves through joints — a pathway that corrosion control treatment under federal rules is designed to reduce, though it cannot eliminate lead risk where the plumbing materials themselves contain lead.
Over half of homes in Old Washington 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.
Old Washington: Remediation Cost in Perspective
Given current Old Washington property values, the remediation share falls in the moderate tier — an indicator that the household financial perspective here calls for advance planning rather than dismissal, with most homeowners positioned to address documented issues through deliberate budgeting rather than needing to treat remediation as a significant equity event or financial emergency.
Remediation costs are moderate relative to home values in Old Washington. The estimated $1,200–$2,300 range is manageable for most homeowners but still worth budgeting for. Home values are 21% below the Ohio average.
Protecting Children from Lead in Old Washington
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.
Before the federal solder ban, lead solder was a routine plumbing material, and 55% of the Old Washington inventory was built in that earlier era — a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Old Washington
- 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 55% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Old Washington, OH