MAINE - EPA Map of Radon Zones
The purpose of this map is to assist National, State and local organizations to target their resources
implement radon-resistant building codes.
This map is not intended to determine if a home in a given zone should be tested for radon.
Homes with elevated levels of radon have been found in all three zones.
All homes should be tested, regardless of zone designation.
IMPORTANT: Consult the publication entitled "Preliminary Geologic Radon Potential
Assessment of Maine" (USGS Open-file Report 93-292-A) before using this map.
http://energy.cr.usgs.gov/radon/grpinfo.html This document contains information on radon
potential variations within counties. EPA also recommends that this map be supplemented
with any available local data in order to further understand and predict the radon potential of a
specific area.
Zone 1 Zone 2
Zone 3
http://www.epa.gov/radon/zonemap.html
AROOSTOOK
PISCATAQUIS
WASHINGTON
HANCOCK
FRANKLIN
WALDO
KENNEBE<
KNOX
OXFORD
CUM BE R-
LAND
YORK
LINCOLN
SAGADAHOC
ANDROSCOGGIN

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