SOUTH DAKOTA - EPA Map of Radon Zones
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.
Homes with elevated levels of radon have been found in all three zones.
All homes should be tested, regardless of zone designation.
http://www.epa.gov/radon/zonemap.html
CAMPBELL
CORSON
HARDING
MCPHERSON
ROBERTS
MARSHALL
PERK NS
BROWN
WALWORTH
EDMUNDS
DAY
DEWEY
GRANT
BUTTE
POTTER
FAULK
Z EBACH
CODINGTON
SPINK
CLARK
SULLY
DEUEL
MEADE
HAMLIN
LAWRENC
HYDE
HAND
HUGHES
BROOK NGS
BEADLE
HAAKON
STANLEY
KINGSBURY
PENN NGTON
BUFFALO
JERAULD
MINER
MOODY
JONES
SANBORN
LAKE
LYMAN
CUSTER
DAVI
SON
JACKSON
BRULE
MCCOOK
AURORA
MELLETTE
MINNEHAHA
SHANNON
FALL
RIVER
DOUGLAS
TURNER
TRIPP
BENNETT
LIN
COLN
HUTCH NSON
TODD
CHARLES
GREGORY
MIX
YANKTON
BON
HOMME
UN
CLAY
Zone 1
Zone 2
Zone 3
IMPORTANT: Consult the publication entitled "Preliminary Geologic Radon Potential
Assessment of South Dakota" (USGS Open-file Report 93-292-H) before using this
map. See 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.

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