Radium in Mount Prospect, IL Drinking Water
Radium data for Mount Prospect, Illinois · 41,000 residents · 1 ZIP code
For residents of Mount Prospect, Illinois, Radium has appeared in public water supply sampling data.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Radium in Mount Prospect Tap Water
Radium has been detected in Mount Prospect, Illinois drinking water at a maximum level of 5.7 pCi/L — 1.14x the EPA MCL.
This analysis covers 41,000 residents across 1 ZIP code in Mount Prospect.
Mount Prospect's overall water quality grade is C (68/100).
Is Radium in Mount Prospect Water Safe?
Radium was detected in Mount Prospect water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis or ion exchange filter can reduce radium levels further.
Radium Levels by ZIP Code
| ZIP Code | Radium Level | EPA Limit | Status |
|---|---|---|---|
| 60056 | 5.7 pCi/L | 5 pCi/L (combined Ra-226 + Ra-228) | Exceeds limit |
Average radium level across Mount Prospect: 5.7 pCi/L
Health Effects of Radium
- Increased risk of bone cancer (radium accumulates in bones)
- The body treats radium like calcium, storing it in bones
- Lifetime cancer risk of ~1 in 10,000 at 5 pCi/L
- No safe threshold for radioactive contamination
Health risk severity: High. Governed by the Radionuclides Rule.
How Radium Gets Into Drinking Water
- Natural radioactive decay in underground rock formations
- Groundwater sources (especially deep wells)
- Mining and industrial waste
- Higher in regions with specific geology (Midwest, parts of South)
What to Do About Radium in Mount Prospect Water
- Reverse osmosis (NSF 58 certified) removes 90%+ of radium
- Ion exchange (water softeners) can reduce radium
- Point-of-use RO at kitchen tap is most cost-effective
- GAC filters alone are NOT effective for radium
Look for filters certified under NSF 58 for radium removal.