Conowingo, MD Radon Mitigation and Testing

Q: What is the average radon level in Conowingo, MD?

Based on 1 user-submitted tests, the average radon level is 6.00 pCi/L.

Q: What EPA Radon Zone is Conowingo in?

Conowingo is in Cecil County, EPA Zone 2.

Q: How much does radon mitigation cost in Conowingo?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 6.00 pCi/L

Cecil County

EPA Zone 2

1 user test

This Cecil County community along the Susquehanna River shows radon readings averaging 6.0 pCi/L, well above EPA action levels. Located in zip code 21918 within the Philadelphia Metro area, Conowingo sits on crystalline bedrock that contributes to elevated radon production. Homeowners should implement mitigation systems promptly to reduce indoor radon concentrations to safer levels.

6.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Conowingo, MD. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Conowingo, MD Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Conowingo, MD Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Conowingo, Maryland Radon Levels

User-submitted radon test readings from homes in the Conowingo area.

Radon Level	City	Home Age	Foundation	Submitted
6 pCi/L	Conowingo, MD	21-50 Years	Full Basement	Dec 2018

Have a radon test result for Conowingo? Submit your reading to help other homeowners.

Conowingo Radon Facts

Key details about the radon risk profile for Conowingo and the 21918 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Cecil County, MD

Zip Code

21918

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

6.00 pCi/L

User Tests Submitted

Conowingo and the 21918 zip code are located in Cecil County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Conowingo, MD

What is the average radon level in Conowingo, MD?

Based on 1 user-submitted test, the average radon level in Conowingo is 6.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Conowingo in?

Conowingo and the 21918 zip code are in Cecil County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Conowingo?

Radon mitigation in Conowingo typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Conowingo?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Maryland

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Frederick	8.29 pCi/L	7
Potomac	9.00 pCi/L	6
Hagerstown	8.67 pCi/L	6
Westminster	14.50 pCi/L	4
Baltimore	7.00 pCi/L	4
Annapolis	4.25 pCi/L	4
Upper Marlboro	15.00 pCi/L	3
Edgewater	12.67 pCi/L	3
Bowie	9.00 pCi/L	3
Clarksburg	8.00 pCi/L	3
Gambrills	6.00 pCi/L	3
Elkton	5.33 pCi/L	3
Silver Spring	4.33 pCi/L	3
Chesapeake Beach	14.00 pCi/L	2
Cumberland	9.00 pCi/L	2
Frostburg	9.00 pCi/L	2
Owings	5.50 pCi/L	2
Huntingtown	4.50 pCi/L	2
Mc Henry	20.00 pCi/L	1
Mount Airy	20.00 pCi/L	1