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PUBLIC HEALTH ASSESSMENT

JET PROPULSION LABORATORY (NASA)
PASADENA, LOS ANGELES COUNTY, CALIFORNIA
EPA FACILITY ID: CA9800013030

August 5, 1999

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

EVALUATION OF POTENTIAL PATHWAYS OF EXPOSURE

COMMUNITY HEALTH CONCERNS

ATSDR CHILD HEALTH INITIATIVE

CONCLUSIONS

PUBLIC HEALTH ACTION PLAN

PREPARERS OF REPORT

REFERENCES

TABLES

FIGURES

APPENDIX A: GLOSSARY

APPENDIX B: COMPARISON VALUES

APPENDIX C: PERCHLORATE IN GROUNDWATER AT JET PROPULSION LABORATORY

APPENDIX D: POPULATION AND HOUSING DATA; CENSUS TRACT MAP

APPENDIX E: RESPONSES TO PUBLIC COMMENTS


LIST OF TABLES

Table 1. Evaluation of Potential Public Health Hazards at Jet Propulsion Laboratory

Table 2. Exposure Pathways

Table 3. Summary of Raw Water Data from Water Purveyors in the Vicinity of JPL

Table 4. Sources of Drinking Water for Water Purveyors in the Vicinity of JPL


LIST OF FIGURES

Figure 1. Site Location Map

Figure 2. Conceptual Model Illustration for the Jet Propulsion Laboratory

Figure 3. Locations of JPL Groundwater Monitoring Wells and Nearby Municipal Production Wells

Figure 4. ATSDR's Exposure Evaluation Process


ATSDR Agency for Toxic Substances and Disease Registry
CDHS California Department of Health Services
CTC carbon tetrachloride
CV comparison value
DCA 1,1- or 1,2-dichloroethane
1,2-DCE 1,2-dichloroethene
EPA United States Environmental Protection Agency
FS feasibility study
JPL Jet Propulsion Laboratory
MCL EPA's maximum contaminant level
MRL ATSDR's minimal risk level
MWDSC Metropolitan Water District of Southern California
NASA National Aeronautics and Space Administration
nd nondetectable
NPL National Priorities List
OSHA Occupational Safety and Health Administration
OU operable unit
PAHs polycyclic aromatic hydrocarbons
PCBs polychlorinated biphenyls
PCE tetrachloroethylene
PHA Public Health Assessment
PHAP public health action plan
ppb parts per billion
RfD reference dose
RMEG reference dose media evaluation guide
RI remedial investigation
SVOC semivolatile organic compound
1,1,1-TCA 1,1,1-trichloroethane
TCE trichloroethylene
TSH thyroid stimulating hormone
VOC volatile organic compound

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