ATSDR - PHA - Pemaco Maywood, Maywood, Los Angeles County, California

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PUBLIC HEALTH ASSESSMENT

PEMACO MAYWOOD
MAYWOOD, LOS ANGELES COUNTY, CALIFORNIA
EPA FACILITY ID: CAD980737092

February 19, 2003

Prepared by:

California Department of Health Services
Under a Cooperative agreement with the
Agency for Toxic Substances and Disease Registry

TABLE OF CONTENTS

SUMMARY

BACKGROUND

SITE DESCRIPTION AND HISTORY

SITE VISITS

DEMOGRAPHICS

LAND USE NEAR THE SITE

NATURAL RESOURCE USE NEAR THE SITE

Surface Water

Groundwater

Municipal Drinking Water Wells

HEALTH OUTCOME DATA

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION

Identification of Contaminants of Concern

Screening Values

Screening Values for Non-Cancer Adverse Health Effects

Screening Values for Carcinogenic Adverse Health Effects

ON-SITE CONTAMINATION

On-Site Subsurface Soil

On-Site Groundwater

On-Site Surface Water

OFF-SITE CONTAMINATION

Municipal Water

Groundwater and Soil Gas Beneath the Neighborhood South of the Site

W.W. Henry Site Groundwater

Surface Water

Surface Soil of the Homes of Nearby Residents

Home-Grown Produce and Home-Grown Animals of Nearby Residents

Airborne Contamination

Thermal Oxidizer Emissions

QUALITY ASSURANCE/QUALITY CONTROL PROCEDURES

PHYSICAL AND OTHER HAZARDS

PATHWAY ANALYSIS

Completed Exposure Pathways

Potentially Completed Exposure Pathways

Exposure Pathways Not Considered or Eliminated

PUBLIC HEALTH IMPLICATIONS

Toxicological Effects of Chemicals from the Pemaco Site

TOXICOLOGICAL EVALUATION OF COMPLETED EXPOSURE PATHWAY

TOXICOLOGICAL EVALUATION OF INHALATION OF THERMAL OXIDIZER STACK EMISSIONS BY ADULTS AND CHILDREN

ATSDR CHILD'S HEALTH INITIATIVE

LIMITATIONS OF TOXICOLOGICAL EVALUATIONS

CONCLUSIONS

PUBLIC HEALTH RECOMMENDATIONS AND ACTION PLAN

Actions Completed

Recommendations

Figure 1. Location of Maywood, California (gray area). Data sources: Interstate data from U.S. Bureau of Transportation Statistics; city, state, and county data from Geographic Data Technology, Inc., Lyme, New Hampshire

Figure 2. Location of Pemaco Site in Maywood, California, showing one mile radius around the site. Data sources: roads and railroads data from U.S. Bureau of Transportation Statistics; Los Angeles River data from Geographic Data Technology, Inc., Lyme, New Hampshire; schools data from U.S. Geological Survey

Figure 3. Map of Pemaco Site showing locations of monitoring wells, subsurface soil samples, and soil boreholes

APPENDIX C: TABLES

Table 1. Chemicals Stored in Underground Storage Tanks at the Pemaco Site

Table 2. Identity and Quantity of Waste Chemicals in Drum Storage Area of the Pemaco Site

Table 3. Near-surface Soil Sampling Results from the Pemaco Site

Table 4. Subsurface Soil Sampling from the Pemaco Site

Table 5. Characteristics of Wells in the Perched Groundwater at the Pemaco Site

Table 6. Perched Groundwater Sampling

Table 7. Thermal Oxidizer Test Data

Table 8. Health Interpretation of Estimated Concentrations in Thermal Oxidizer Stack Emissions

Table 9. Completed Exposure Pathways for Pemaco Maywood Site

Table 10. Potentially Completed Exposure Pathways for Pemaco Maywood Site

Table 11. Eliminated Exposure Pathways for Pemaco Maywood Site

APPENDIX D: PUBLIC COMMENTS

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