Detected Radium

Radium in Oswego, IL Drinking Water

Q: Is radium in Oswego water safe?

Radium was detected in Oswego water at 6 pCi/L, below the EPA limit of 5 pCi/L (combined Ra-226 + Ra-228). Check ZIP-level data on this page for your specific area.

Q: How much radium is in Oswego water?

The maximum detected level of radium in Oswego water is 6 pCi/L. The EPA limit is 5 pCi/L (combined Ra-226 + Ra-228). See the ZIP code table above for area-specific levels.

Radium data for Oswego, Illinois · 41,723 residents · 1 ZIP code

ZipCheckup's reading of Radium in Oswego, Illinois: the highest detected level is 6 pCi/L; the EPA limit is 5 pCi/L (combined Ra-226 + Ra-228). Radium carries a high health-risk designation.

At elevated levels, Radium is a recognized health concern in drinking water; in Oswego, Illinois, it has been detected in recent samples logged through federal compliance reporting.

6 pCi/L

Max Level Detected

6 pCi/L

Average Level

5 pCi/L (combined Ra-226 + Ra-228)

EPA MCL

High

Health Risk

Reverse Osmosis or Ion Exchange

Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13

Radium in Oswego Tap Water

Radium has been detected in Oswego, Illinois drinking water at a maximum level of 6 pCi/L — relative to the EPA MCL of 5 pCi/L (combined Ra-226 + Ra-228).

This analysis covers 41,723 residents across 1 ZIP code in Oswego.

Oswego's overall water quality grade is C (64/100).

Is Radium in Oswego Water Safe?

Radium was detected in Oswego 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
60543	6 pCi/L	5 pCi/L (combined Ra-226 + Ra-228)	Not comparable

Average radium level across Oswego: 6 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 Oswego 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.

Home → Contaminants → Radium → Illinois → Oswego

How to cite this page

APA ZipCheckup. (2026). Radium in Oswego, IL Drinking Water. https://zipcheckup.com/contaminants/radium/oswego-il/

BibTeX

@misc{zipcheckup-contaminants-radium-oswego-il,
  author = {{ZipCheckup}},
  title  = {{Radium in Oswego, IL Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/radium/oswego-il/}
}

Data as of July 2026.