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PUBLIC HEALTH ASSESSMENT

SCHOFIELD BARRACKS
WAHIAWA, HONOLULU COUNTY, HAWAII
EPA FACILITY ID: HI7210090026

February 11, 1998

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

COMMUNITY HEALTH CONCERNS AND POTENTIAL PATHWAYS OF EXPOSURE

CONCLUSIONS

PUBLIC HEALTH ACTION PLAN

PREPARERS OF REPORT

REFERENCES

TABLES

FIGURES

APPENDIX A: Glossary

APPENDIX B: Comparison Values

APPENDIX C: Estimates of Human Exposure Dose and Determination of Health Effects From Past Consumption of TCE-Contaminated Groundwater

APPENDIX D: Response to Comments Received During the Public Comment Period


LIST OF TABLES

Table 1: Evaluation of Potential Public Health Hazards

Table 2: TCE Concentrations in Schofield Army Barracks Groundwater

Table 3: Population Data

Table 4: Housing Data

Table 5: Exposure Pathways

Table 6: Target Analyte List for Soil, Sediment, Groundwater, and Surface Water Sample Analysis


LIST OF FIGURES

Figure 1: Site Location

Figure 2: Regional Groundwater Systems of Oahu, Hawaii

Figure 3: Generalized Cross Section of Oahu at the Schofield Plateau

Figure 4: ATSDR's Exposure Evaluation Process


LIST OF ABBREVIATIONS
ATSDR Agency for Toxic Substances and Disease Registry
BG block group (census data)
BTEX benzene, toluene, ethyl benzene, and total xylenes
BW body weight
CERCLA Comprehensive Environmental Response, Compensation, and Liability Act
CPF cancer potency factor
CREG ATSDR's cancer risk evaluation guide
CV comparison value
ED exposure duration
EF exposure frequency
EMEG ATSDR's environmental media evaluation guide
EPA U.S. Environmental Protection Agency
FS feasibility study
HARP Health Activities Recommendation Panel
IR ingestion rate
kg kilogram
MCL EPA's maximum contaminant level
mg/L milligrams per liter
mg/kg/day milligrams per kilogram per day
MRL ATSDR's minimal risk level
NCTAMS Naval Computer and Telecommunications Area Master Station
nd not detected
NPL National Priorities List
OU operable unit
PCE tetrachloroethylene
ppb parts per billion
ppm parts per million
PCBs polychlorinated biphenyls
PCDD polychlorinated dibenzodioxin
PCDF polychlorinated dibenzofuran
PHAP Public Health Action Plan
POL petroleum, oil, and lubricants
QA/QC quality assurance/quality control
RI remedial investigation
RMEG ATSDR's reference dose media evaluation guide
ROD record of decision
SVOC semi-volatile organic compound
TCE trichloroethylene
TPH total petroleum hydrocarbons
TVH total volatile hydrocarbons
UST underground storage tank
VOC volatile organic compound


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