PENNSYLVANIA - EPA Map of Radon Zones
http://www.epa.gov/radon/zonemap.html
The purpose of this map is to assist National, State and local organizations to target their resources and to
implement radon-resistant building codes.
This map is not intended to determine if a home in a given zone should be tested for radon.
All homes should be tested, regardless of zone designation.
SUSQUEHANNA
BRADFORD
WAYNE
TIOGA
WYOMING
LACKA-
WANNA
PIKE
POTTER
ERIE
MCKEAN
WARREN
SULLIVAN
LYCOMING
LUZERNE
MONROE
CAMERON
MONTOUR
CRAWFORD
FOREST
ELK
CLINTON
COLUMBh
CARBON
NORTH-
AMPT-
\—s. row
VENANGO
UNION
JEFFER-
SON
y NORTH-1
UMBER-
LAND /
MERCER
CLARION
CENTRE
LEHIGH
CLEARFIELD
SCHUYLKILL
SNYDER
MIFF-
LIN XJUN-
) I ATA/
BUCKS
BERKS
LAW-
RENCE
DAUPHIN
BUTLER
MONT-
a GOMERY
ARMSTRONG
LEBANON
INDIANA
PERRY
BLAIR
CHESTER
CAMBRIA
PHILA-
DELPHIA
BEAVER
/DEI
AWAI
LANCASTER
HUNTINGDON
CUMBERLAND
ALLEGHENY
WESTMORELAND
YORK
ADAMS
FUL-
TON
BEDFORD
WASHINGTON
SOMERSET
FRANKLIN
FAYETTE
GREENE
IMPORTANT: Consult the publication entitled "Preliminary Geologic Radon Potential
Assessment of Pennsylvania" (USGS Open-file Report 93-292-C) 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

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