Radon Potential Zone Map for Santa Cruz County POTENTIAL ZONE MAP FOR SANTA CRUZ COUNTY SPECIAL...

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San Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo CountySan Mateo County

Big Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State ParkBig Basin Redwoods State Park

Big BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinBig BasinRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState Park

Boulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder CreekBoulder Creek

Castle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockCastle RockState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState Park

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Scotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts ValleyScotts Valley

Ben LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen LomondBen Lomond

FeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFeltonFelton

Henry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState Park

Live OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive OakLive Oak

Santa CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta CruzSanta Cruz

Twin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin LakesTwin Lakes

Wilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchWilder RanchState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState Park

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Day ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay ValleyDay Valley

DavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenportDavenport

Henry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellHenry CowellRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsRedwoodsState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState Park

Loch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch LomondLoch Lomond

Santa Clara County

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Santa Clara County

Santa Clara County

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Santa Clara County

Santa Clara County

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Opal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal CliffsOpal Cliffs

CapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitolaCapitola

SoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquelSoquel

New BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonNew BrightonState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState BeachState Beach

AptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptosAptos

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The Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksThe Forest of Nisene MarksState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState ParkState Park

Manresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State BeachManresa State Beach

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San Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito CountySan Benito County

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Radon Potential Zone Map for Santa Cruz County

By

Ronald K. Churchill, Ph. D.

RADON POTENTIAL ZONE MAP FOR SANTA CRUZ COUNTYSPECIAL REPORT 216

STATE OF CALIFORNIA - ARNOLD SCHWARZENEGGER, GOVERNORTHE RESOURCES AGENCY - LESTER A. SNOW, SECRETARY FOR RESOURCES

DEPARTMENT OF CONSERVATION - DEREK CHERNOW, ACTING DIRECTORCALIFORNIA GEOLOGICAL SURVEYJOHN G. PARRISH, PH.D., STATE GEOLOGIST

(PG #4265)

September 2010

MAP USAGE AND LIMITATIONS

This map identifies areas within Santa Cruz County where geologic conditions are more likely toproduce excessive indoor radon levels. It is intended to assist national, state and local governmentsand organizations in targeting their radon program activities and resources. This map is not intendedfor determining which buildings have excessive indoor radon levels. Besides geology, local variabilityin such factors as soil permeability, weather and climatic conditions, building design and condition,and building usage also influences indoor radon levels. Consequently, building-specific radon levelscan only be determined by indoor radon testing. No warranty as to actual radon levels at specificsites in Santa Cruz County is expressed or implied by this map or the accompanying report.

The U.S. Environmental Protection Agency (EPA) recommends that all homes be tested for radonwhatever their geographic location. Homes with elevated radon levels have been found in all threezones (High, Moderate, and Low) within Santa Cruz County. The U.S. EPA recommends thataction be taken to reduce radon in homes with an average annual level higher than four picocuriesper liter (4 pCi/l).

Questions regarding this map should be directed to:

- California Department of Health Services Radon Program, George Faggella,phone (916) 449-5674

- California Geological Survey, Ron Churchill, phone (916) 327-0745

Additional information about radon can be found at the following websites:

- California Department of Health Services Radon Program:http://www.dhs.ca.gov/ps/ddwem/environmental/radon/radon.htm

- California Geological Survey-Mineral Hazards Project:http://www.consrv.ca.gov/cgs/minerals/hazardous_minerals/radon/index.htm

- U.S. EPA: http://www.epa.gov/iaq/radon/

Santa Cruz County

1 0 1 2 3

Miles

Scale: 1:100,000

2 0 2 4

Kilometers

Copyright © 2010 by the California Department of Conservation, California Geological Survey.All rights reserved. No part of this publication may be reproduced without written consent ofthe California Geological Survey.

The California Department of Conservation makes no warranties as to the suitability of thisproduct for any particular purpose.

Radon Zone Definitions

High Potential For Indoor Radon LevelsAbove Four Picocuries Per Liter*

Moderate Potential For Indoor Radon Levels Above Four Picocuries Per Liter*

Low Potential For Indoor Radon Levels Above Four Picocuries Per Liter*

Base Map Layers

Unknown Radon Levels

LEGEND:

State Route

Secondary Route/Street

County Boundary

Lake

River

Stream

Urban Areas

State Parks

* The U.S. Environmental Protection Agency (EPA) recommends fourpicocuries per liter as the action level for radon reduction.

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