How much radium is in Clarksville water?

The maximum detected level of radium in Clarksville water is 5.4 pCi/L. The EPA limit is 5 pCi/L (combined Ra-226 + Ra-228). See the ZIP code table above for area-specific levels.

Detected Radium

Radium in Clarksville, PA Drinking Water

Q: Is radium in Clarksville water safe?

Radium was detected in Clarksville water at 5.4 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.

Radium data for Clarksville, Pennsylvania · 40,000 residents · 1 ZIP code

ZipCheckup's reading of Radium in Clarksville, Pennsylvania: the highest detected level is 5.4 pCi/L; the EPA limit is 5 pCi/L (combined Ra-226 + Ra-228). Radium carries a high health-risk designation.

If you rely on a public water system in Clarksville, Pennsylvania, Radium is a contaminant your utility has been required to test for - and EPA records show it has been detected at measurable levels, making it worth understanding as part of your tap water's detection record.

5.4 pCi/L

Max Level Detected

5.4 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: 2026-05-14

Radium in Clarksville Tap Water

Radium has been detected in Clarksville, Pennsylvania drinking water at a maximum level of 5.4 pCi/L — 1.08x the EPA MCL.

This analysis covers 40,000 residents across 1 ZIP code in Clarksville.

Clarksville's overall water quality grade is C (55/100).

Is Radium in Clarksville Water Safe?

Radium was detected in Clarksville 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
15322	5.4 pCi/l	5 pCi/L (combined Ra-226 + Ra-228)	Exceeds limit

Average radium level across Clarksville: 5.4 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 Clarksville 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 → Pennsylvania → Clarksville

How to cite this page

APA ZipCheckup. (2026). Radium in Clarksville, PA Drinking Water. https://zipcheckup.com/contaminants/radium/clarksville-pa/

BibTeX

@misc{zipcheckup-contaminants-radium-clarksville-pa,
  author = {{ZipCheckup}},
  title  = {{Radium in Clarksville, PA Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/radium/clarksville-pa/}
}

Data as of May 2026.