Independent Radon Testing In Maryland 
Arundel Home Inspection LLC - Providing Radon Testing in Maryland
John Dirks Jr ~ 410-733-3238
This map of the State of Maryland if from the EPA website. It shows the layout of counties and the radon potentials associated with them. Keep in mind that it is possible for high levels to be discovered in any area. High levels of radon have been discovered in all areas but high incidences are more likely in some areas.
The yellow areas have a lower incidence of high radon levels.
The orange areas have a moderate incidence high radon levels.
The red areas have a higher incidence of high radon levels.

Radon Test Results by County
-- readings 4.0 or above prompt a recommendation for mitigation --
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Crofton – Bellow
Crofton –
Jessup –
Linthicum –
Linthicum –
Millersville –
Millersville – Rustling
Millersville – Stonestep Ct. - 2.9 pCi/l
Odenton – Canteen Cir. – 0.7 pCi/l
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Owings Mills –
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Finksburg –
Sykesville –
Sykesville –
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Elkridge – _________________________________________________________
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Laurel –