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
-
Site Description and History
Remedial and Regulatory History
Demographics
Land Use and Natural Resources
ATSDR Involvement
EVALUATION OF POTENTIAL PATHWAYS OF EXPOSURE
-
Introduction
Evaluation of Groundwater/Drinking Water Exposure Pathway
Evaluation of Soil Exposure Pathway
APPENDIX C: PERCHLORATE IN GROUNDWATER AT JET PROPULSION LABORATORY
APPENDIX D: POPULATION AND HOUSING DATA; CENSUS TRACT MAP
APPENDIX E: RESPONSES TO PUBLIC COMMENTS
Table 1. Evaluation of Potential Public Health Hazards at Jet Propulsion Laboratory
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
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 |


