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land subsidence and earth fissures in arizona - The Arizona ...

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LAND SUBSIDENCE & EARTH FISSURES IN ARIZONA<br />

ARIZONA L<strong>and</strong> Subsidence Group<br />

L<strong>and</strong>, Infrastructure <strong>and</strong> Water<br />

CONTENTS<br />

PREFACE.............................................................................................................................. i<br />

EXECUTIVE SUMMARY ....................................................................................................... ii<br />

1 INTRODUCTION........................................................................................................ 1<br />

2 LAND SUBSIDENCE AND EARTH FISSURES AS A GEOLOGIC PROCESS.......... 2<br />

3 IMPACTS OF LAND SUBSIDENCE AND EARTH FISSURES ................................ 5<br />

4 IMPACTS ON SUSTAINABILITY AND GROWTH IN ARIZONA.............................. 9<br />

5 ADDRESSING EARTH FISSURES IN ARIZONA..................................................... 10<br />

6 SHORTCOMINGS IN LAND SUBSIDENCE AND EARTH FISSURE SCIENCE...... 11<br />

7 RECOMMENDATIONS.............................................................................................. 16<br />

8 BENEFITS TO THE CITIZENS AND STAKEHOLDERS OF ARIZONA ................... 18<br />

9 REFERENCES........................................................................................................... 19<br />

APPENDIX A – ARIZONA LAND SUBSIDENCE GROUP MEMBER LISTING<br />

Cover page:<br />

Sign erected <strong>in</strong> 2006 warn<strong>in</strong>g motorists of <strong>earth</strong> fissure hazard across Dragoon Road <strong>in</strong><br />

Cochise County near the Apache Power Plant. (photo by Ray Harris)<br />

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