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PUBLIC HEALTH ASSESSMENT

EDWARDS AIR FORCE BASE
EDWARDS AIR FORCE BASE, KERN COUNTY, CALIFORNIA
EPA FACILITY ID: CA1570024504

May 8, 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

ABBREVIATIONS

1 SUMMARY

2 BACKGROUND

3 EVALUATION OF ENVIRONMENTAL CONTAMINATION AND POTENTIAL EXPOSURE SITUATIONS

4 COMMUNITY HEALTH CONCERNS

5 CHILD HEALTH CONSIDERATIONS

6 CONCLUSIONS

7 PUBLIC HEALTH ACTION PLAN

8 REFERENCES

APPENDICES

APPENDIX A: TABLES

APPENDIX B: FIGURES

APPENDIX C: ATSDR'S PROCESS FOR EVALUATING HEALTH EFFECTS

APPENDIX D: ARSENIC IN A WATER SUPPLY WELL AT EDWARDS AIR FORCE BASE

APPENDIX E: DIOXIN-LIKE COMPOUNDS--DEFINITIONS, SOURCES, EXPOSURES, EFFECTS, AND THE TEF/TEQ CONCEPT

APPENDIX F: ATSDR PLAIN LANGUAGE GLOSSARY OF ENVIRONMENTAL HEALTH TERMS

APPENDIX G: RESPONSES TO PUBLIC COMMENTS


LIST OF TABLES

Table 1: Potential Exposure Pathways Evaluated at EAFB

Table 2: Description of On-base Drinking Water Supply System

Table 3: Description of Community Supply Wells

Table 4. EAFB Groundwater Plume Characteristics

Table 5: Summary of Dioxin Air Sampling Data from Site 16 and Site 18


LIST OF FIGURES

Figure 1. Location Map of Edwards Air Force Base

Figure 2. Map of Operable Units at Edwards Air Force Base

Figure 3. Demographic Map for Edwards Air Force Base, California

Figure 4. ATSDR Exposure Evaluation Process

Figure 5. ATSDR Public Health Conclusion Categories

Figure 6. Contaminant Plumes and On-base Supply Wells

Figure 7. North Base Contaminant Plumes and Off-base Private and Community Supply Wells

Figure 8. Location of Site 426, Edwards Air Force Base

Figure 9. Location of Site 16 and Site 18, Edwards Air Force Base

Figure 10. Windrose (1992-1997) for Site 16 and Site 18, Edwards Air Force Base


Abbreviations
AFFTC U.S. Air Force Flight Test Center
AFRL Air Force Research Laboratory--Propulsion Directorate
AST above-ground storage tank
ATSDR Agency for Toxic Substances and Disease Registry
AVEK Antelope Valley East Kern Water District
BCF bioconcentration factor
bgs below ground surface
BTEX benzene/toluene/ethylbenzene/xylene
CADHS California Department of Health Services
CALEPA California Environmental Protection Agency
CEL cancer effect level
CERCLA Comprehensive Environmental Response, Compensation, and Liability Act
CREG cancer risk evaluation guide (ATSDR)
CV comparison value
CWM chemical warfare materiel
1,2-DCA 1,2-dichloroethane
DCE dichloroethylene
DES dual extraction system
DFRC Dryden Flight Research Center
DTSC Department of Toxic Substances Control (a division of CALEPA)
EAFB Edwards Air Force Base
EMEG environmental media evaluation guide (ATSDR)
EPA U.S. Environmental Protection Agency
ERP Environmental Restoration Program
F Fahrenheit
FFA Federal Facility Agreement
ft feet
FUDS Formerly Used Defense Site
IRA interim removal action
JP-4 jet petroleum 4
JPL Jet Propulsion Laboratory
MCL EPA's maximum contaminant level
MRL ATSDR's minimal risk level
MTBE methyl-tert-butyl ether
NASA National Aeronautics and Space Administration
NDMA n-nitrosodimethylamine
NPL National Priorities List
OU operable unit
PCB polychlorinated biphenyl
PCE tetrachloroethylene, also known as perchloroethylene
pg picogram
pg/m3 picograms per cubic meter
PHA public health assessment
POLs petroleum, oils, and lubricants
ppb parts per billion
ppm parts per million
ppt parts per trillion
RBC risk-based concentration (EPA)
RCRA Resource Conservation and Recovery Act
RfD reference dose (EPA)
RMEG reference media evaluation guide (ATSDR)
ROD record of decision
SARA Superfund Amendment and Reauthorization Act
SVOC semi-volatile organic compound
TCDD 2,3,7,8 tetrachlorodibenzo-p-dioxin
TCE trichloroethylene
TEF toxicity equivalent factor
TEQ toxicity equivalent
TPH total petroleum hydrocarbons
USACE U.S. Army Corps of Engineers
USAF U.S. Air Force
USGS U.S. Geological Survey
UST underground storage tank
UXO unexploded ordnance
VOC volatile organic compound

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