PUBLIC HEALTH ASSESSMENT

HILL AIR FORCE BASE
HILL AIR FORCE BASE, DAVIS AND WEBER COUNTIES, UTAH
EPA FACILITY ID: UT0571724350

May 30, 2003

Prepared by:

Federal Facilities Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry

TABLE OF CONTENTS

LIST OF TABLES

LIST OF FIGURES

LIST OF ABBREVIATIONS

SUMMARY

BACKGROUND

Base Description and Operating History
Remedial and Regulatory History
ATSDR Involvement
Demographics and Land Use
Quality Assurance and Quality Control

ENVIRONMENTAL CONTAMINATION AND HUMAN EXPOSURE PATHWAYS

Hill AFB
Off-Base Areas
Communities of Sunset and Clinton
Community of Roy
Communities of Layton and Clearfield
Community of Riverdale and the Craigdale Subdivision
Community of South Weber

ATSDR CHILD HEALTH CONSIDERATIONS

COMMUNITY HEALTH CONCERNS

Public Comments Received During the Public Comment Period

CONCLUSIONS

PUBLIC HEALTH ACTION PLAN

PREPARERS OF THIS REPORT

REFERENCES AND DOCUMENTS REVIEWED

TABLES

FIGURES

APPENDIX A. DEMOGRAPHICS

APPENDIX B. ATSDR'S EXPOSURE ASSESSMENT PROCESS

APPENDIX C. GLOSSARY

APPENDIX D. JOHNSON AND ETTINGER INDOOR AIR MODEL

APPENDIX E. ATSDR HEALTH CONSULTATION ON OPERABLE UNIT 6

LIST OF TABLES

Table 1. Indoor Air Summary Information

Table 2. Sources of Contamination by Community

Table 3. Patriot Hills Housing Area In-Home Indoor Air Measurements (1993 and 1994)

Table 4. Sunset Housing Area In-Home Indoor Air Measurements

Table 5. Clinton Housing Area In-Home Air Measurements

Table 6. Sunset and Clinton Surface Water Measurements-Dermal (1987 to 1994)

Table 7. Sunset and Clinton Surface Water Measurements-Ingestion (1987 to 1994)

Table 8. Roy Housing Area In-Home Indoor Air Measurements

Table 9. Layton Housing Area In-Home Indoor Air Measurements (1997 and 2000-2001)

Table 10. Layton Surface Water Measurements-Dermal (1986 to 1998)

Table 11. Layton Surface Water Measurements-Ingestion (1986 to 1998)

Table 12. Craigdale Subdivision Housing Area In-Home Indoor Air Measurements (1992-1994)

Table 13. Riverdale Surface Water Measurements-Dermal

Table 14. Riverdale Surface Water Measurements-Ingestion

Table 15. South Weber Housing Area In-Home Indoor Air Measurements (1990, 1993, and 1994-1995)

Table 16. South Weber Surface Water Measurements-Dermal (1990-1992)

Table 17. South Weber Surface Water Measurements-Ingestion (1990-1992)

Table 18. Evaluation of Operable Units at Hill Air Force Base

Table 19. Exposure Pathways Table

Table 20. Patriot Hills Housing Area Indoor Air Exposure Doses and Screening (Excel file)

Table 21. Sunset, Clinton, and Roy Indoor Air Exposure Doses and Screening (Excel file)

Table 22. Layton Indoor Air Exposure Doses and Screening (Excel file)

Table 23. Riverdale Indoor Air Exposure Doses and Screening (Excel file)

Table 24. South Weber Indoor Air Exposure Doses and Screening (Excel file)

LIST OF FIGURES

Figure 1. Area and Demographic Map

Figure 2. Groundwater Contamination Plume Map

Figure 3. Groundwater Contamination Plume Map of Roy

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