Radium in Ohio Drinking Water — 16 ZIPs Tested
EPA data analysis for radium in Ohio drinking water systems
Radium Contamination in Ohio
ZipCheckup analyzed drinking water data across 1,435 ZIP codes in Ohio for radium contamination. 16 ZIP codes have reported radium detections, and 5 have EPA violations on record.
The violation rate for radium in Ohio is 0.3% of all ZIP codes — lower than the national average.
EPA Standard for Radium
The EPA maximum contaminant level (MCL) for radium is 5 pCi/L (combined Ra-226 + Ra-228), governed by the Radionuclides Rule. Water systems that exceed this limit must take corrective action and notify consumers.
Worst ZIP Codes for Radium in Ohio
These ZIP codes reported the highest radium levels in Ohio based on CCR reports and EPA data:
Lowest Radium Levels in Ohio
These ZIP codes had the lowest reported radium detections in Ohio:
Health Effects of Radium
Radium is a radioactive element that increases cancer risk, particularly bone cancer. It accumulates in bones because the body treats it like calcium. The EPA estimates that drinking water with 5 pCi/L of radium over a lifetime poses a 1 in 10,000 cancer risk.
How to Remove Radium From Drinking Water
The most effective treatment for radium removal is Reverse Osmosis or Ion Exchange. Look for filters certified under NSF 58 standards.
Check Your ZIP Code
Use the ZipCheckup water quality search to see radium data for your specific water system in Ohio.
Worst ZIP Codes for Radium in Ohio
Ranked by highest radium detection level.
| Rank | ZIP Code | City | Level Detected | EPA Limit | Status |
|---|---|---|---|---|---|
| 1 | 43007 | Broadway | 3.9 PCI/L | 5 PCI/L | Within Limit |
| 2 | 43040 | Marysville | 3.9 PCI/L | 5 PCI/L | Within Limit |
| 3 | 43041 | Marysville | 3.9 PCI/L | 5 PCI/L | Within Limit |
| 4 | 43115 | Clarksburg | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 5 | 43135 | Laurelville | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 6 | 43152 | South Bloomingville | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 7 | 43160 | Washington Court House | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 8 | 43164 | Williamsport | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 9 | 45601 | Chillicothe | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 10 | 45622 | Creola | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 11 | 45628 | Frankfort | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 12 | 45647 | Londonderry | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 13 | 45651 | Mc Arthur | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 14 | 45654 | New Plymouth | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 15 | 45672 | Ray | 2.72 pCi/L | 5 pCi/L | Within Limit |
| 16 | 45681 | South Salem | 2.72 pCi/L | 5 pCi/L | Within Limit |
Lowest Radium Levels in Ohio
| ZIP Code | City | Level Detected |
|---|---|---|
| 45681 | South Salem | 2.72 pCi/L |
| 45672 | Ray | 2.72 pCi/L |
| 45654 | New Plymouth | 2.72 pCi/L |
| 45651 | Mc Arthur | 2.72 pCi/L |
| 45647 | Londonderry | 2.72 pCi/L |
| 45628 | Frankfort | 2.72 pCi/L |
| 45622 | Creola | 2.72 pCi/L |
| 45601 | Chillicothe | 2.72 pCi/L |
| 43164 | Williamsport | 2.72 pCi/L |
| 43160 | Washington Court House | 2.72 pCi/L |
Cities with Radium Data in Ohio
6 cities in Ohio have radium testing data available.