PRELIMINARY PUBLIC HEALTH ASSESSMENT
UNITED HECKATHORN
RICHMOND, CONTRA COSTA COUNTY, CALIFORNIA
EPA FACILITY
ID: CAD981436363 ![]()
April 16, 1992
Prepared by:
California Department of Health Services
Under Cooperative Agreement with the
Agency for Toxic Substances Disease Registry
TABLE OF CONTENTS
ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS
APPENDIX A: INHALATION OF CONTAMINANTED AIRBORNE
DUST IN THE RESIDENTIAL NEIGHBORHOOD NEAR UNITED HECKATHORN
CALCULATIONS OF INHALATION
RISK IN RESIDENTIAL AREA
APPENDIX B: EXCESS RISKS ASSOCIATED WITH EATING FISH CAUGHT NEAR UNITED HECKATHORN
APPENDIX C: RESPONSES TO PUBLIC COMMENTS
Table 1. Airborne Contaminant Concentrations
Table 3. Organochloride Contaminants (ppm) in On-Site Upland Soil Samples at United Heckathorn
Table 6. Off-site Airborne Contaminant Concentrations (ng/m3) at Southern End of Residential Area
Table 8. Off-Site Concentration of Metals in Lauritzen Canal Sediments at United Heckathorn Site
Table 9. Completed Exposure Pathways
Figure 1. Geographic Location of Site
Figure 2. United Heckathorn and LTRC Complex