ATSDR - PHA - Leviathan Mine, Markleeville, Alpine County, California

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PUBLIC HEALTH ASSESSMENT

Evaluation of Leviathan Mine Site

LEVIATHAN MINE
MARKLEEVILLE, ALPINE COUNTY, CALIFORNIA
EPA FACILITY ID: CAD980673685

May 7, 2003

Prepared by:

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

TABLE OF CONTENTS

STATEMENT OF ISSUES

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION

Use of Comparison Values

Fish and Wildlife

PATHWAYS ANALYSES

Eliminated Exposure Pathways

Completed Exposure Pathways

Exposure to Leviathan Mine contaminants via wading and swimming
Exposure to Leviathan Mine contaminants via consumption of surface waters

Potentially Completed Exposure Pathways

Potential consumption of plants contaminated with Acid Mine Drainage
Potential consumption of fish contaminated with metals from Leviathan Mine
Potential consumption of groundwater contaminated with Acid Mine Drainage
Potential consumption of beef raised with waters contaminated by metals from Leviathan Mine
Potential consumption of wild game and fowl contaminated with metals from Leviathan Mine
Potential inhalation of contaminants from Leviathan Mine
Potential future exposure to Leviathan Mine contaminants via wading and swimming
Potential future consumption of surface waters contaminated by Leviathan Mine

PUBLIC HEALTH IMPLICATIONS

Toxicological Evaluation

Non-cancer Health Effects

Carcinogenic Health Effects

Children's Health Issues

Toxicological Evaluation of Completed Exposure Pathways

Evaluation Strategy

Exposure Dose Estimates and Health Effects Evaluation

RECOMMENDATIONS

PUBLIC HEALTH ACTION PLAN

Actions Conducted by CDHS at Leviathan Mine

PREPARERS OF REPORT

APPENDIX A: TABLES

Table 1. Summary of Surface Water Data From 1968-1969

Table 2. Summary of Surface Water Data From 1981-1983

Table 3. Summary of Surface Water Data From 1995-2001

Table 4. Summary of Sediment Data Collected on May 12, 1983

Table 5. Summary of Sediment Data Collected in September 1998

Table 6. Summary of Completed Exposure Pathways at the Leviathan Mine

Table 7. Summary of Potentially Completed Exposure Pathways at the Leviathan Mine

Table 8. Summary of Exposure Dose Estimates for Completed Pathways in Adults

Table 9. Summary of Exposure Dose Estimates for Completed Pathways in Children

Table 10. Exposure Parameters Used in Estimating Exposure Risks

APPENDIX B: FIGURES

Figure 1. GIS Topographic Map of the Leviathan Mine Site and Vicinity

Figure 2. 1999 Surface Water Sample Locations at Leviathan Mine and Associated Watershed

Figure 3. Narrative of Sampling Locations

APPENDIX C: TOXICOLOGICAL SUMMARIES FOR CHEMICALS FOUND NEAR LEVIATHAN MINE

APPENDIX D: PUBLIC COMMENTS

Next Section

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