Page Chapter 1——SUMMARY AND CONCLUSIONS 1.1 The Containment Structure 1.2 Related Issues Danwu Ww Ww Chapter 2—-BACKGROUND 2.1 Nature of the Islands . 2.2 Normal Econony 2.3 Enewetak Atoll The Enewetak People 2.5 Weapons Testing 206 References 2.4 Chapter 3--THE CLEANUP 3-1 Cleanup Proposals 3.2 Cleanup Criteria 323 Disposal Options 3.4 Radioactive Contaminants 3-5 Location of the Contamination 3.6 Nature of the Problem 3.7 Safety of Operators 3.8 3.9 3.1 0 Cactus Crater Filling of the Crater References 10 10. ili il “ll 12 15 17 4.2 The Drilling Program 19 19 19 4.4 References 23 Chapter 4--DESCRIPTION OF THE CONTAINMENT STRUCTURE 4.1 General Observations 4.3 Radioactive Contents iii 900312 vi wii nee COMMITTEE ON. EVALUATION OF ENEWETAK RADIOACTIVITY CONTAINMENT ADVISORY BOARD ON THE BUILT ENVIRONMENT . PREFACE