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PUBLIC HEALTH ASSESSMENT

STIBNITE/YELLOW PINE MINING AREA
STIBNITE, VALLEY COUNTY, IDAHO
EPA FACILITY ID: IDD980665459

September 5, 2003

Prepared by:

Bureau of Environmental Health and Safety
Division of Health
Idaho Department of Health and Welfare
Under a Cooperative Agreement with the
Agency for Toxic Substances and Disease Registry


TABLE OF CONTENTS

LIST OF APPENDICES

LIST OF TABLES

ACROMYMS

SUMMARY

1. PURPOSE AND HEALTH ISSUES

2. BACKGROUND

3. ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

4. PATHWAYS OF HUMAN EXPOSURE

5. DISCUSSION - ADULT AND CHILDREN'S HEALTH ISSUES

6. CONCLUSIONS

7. RECOMMENDATIONS

8. PUBLIC HEALTH ACTION PLAN

9. REFERENCES

10. PREPARERS OF REPORT

11. CERTIFICATION


LIST OF APPENDICES

Appendix A. Stibnite Location and Sampling Maps

Appendix B. ATSDR Interim Public Health Hazard Categories

Appendix C. Contaminants of Concern Selection and Estimated Non-Carcinogenic Exposure Doses

Appendix D. Estimated Carcinogenic Exposure Doses and Cancer Risk

Appendix E. Expsoure Dose Calculation Equations

Appendix F. Cancer Risk Calculation Equation

Appendix G. ATSDR Glossary of Environmental Health Terms

Appendix H. Stibnite Mine Public Health Assessment Public Release Review Comments Addressed


LIST OF TABLES

Table 1. Completed Exposure Pathways

Table 2. Potential Exposure Pathways

Table 3. Eliminated Exposure Pathways

Table 4. Exposure Assumptions Summary

Table B-1. Interim Public Health Hazard Categories

Table C-1. Health Comparison Values

Table C-2. Contaminants of Corcern in Surface Soil of Meadow Greek exposure Areas

Table C-3. Contaminants of Corcern in Surface Soil of Bradley waste Rock Dumps and Hot Spots

Table C-4. Contaminants of Corcern in Surface Water of different Exposure Locations

Table C-5. Estimated Daily Exposure Dose of Concerned Contaminants from Consumption of Fish by Recreational Users

Table C-6. Health Guidelines Values

Table C-7. Estimated Daily Exposure of Concerned Contaminants from Ingestion of Surface Soil and Inhalation of Air Borne Particulate in Meadow Creek Exposure Areass

Table C-8. Estimated Daily Exposure of Concerned Contaminants from Ingestion of Surface Soil and Inhalation of Air Borne Particulate in Bradely Waste Rock Dumps and Hot Spots

Table C-9. Estimated Daily Exposure Dose of Concerned Contaminants from Ingestion of Surface water

Table C-10. Summary of Non-Carcinogenic Exposure Dose of the Concerned Contaminants in Different Areas

Table D-1. Summary of Carcinogenic Expsoure Dose and Cancer Risk of Arsenic in Different Areas


ACROMYMS
AL Action Level
AOC Administrative Order of Consent
ATV All Terrain Vehicle
ATSDR Agency of Toxic Substances and Disease Registry
BEHS Bureau of Environmental Health and Safety
C-EMEG Chronic Environmental Media Evaluation Guide
CEL Cancer Effect Level
CERCLA Comprehensive Emergency Response Cleanup and Liability Act
CREG Cancer Risk Evaluation Guide
CV Comparison Value
EFSFSR East Fork of the South Fork of the Salmon River
EMEG Environmental Media Evaluation Guide
EPA United States Environmental Protection Agency
g/day grams per day
HOD Health Outcome Data
HRS Hazard Ranking System
I-EMEG Intermediate Environmental Media Evaluation Guide
IDEQ Idaho Department of Environmental Quality
L/day liters per day
LOAEL Lowest Observed Adverse Effect Level
LTHA Lifetime Health Advisory (for drinking water)
MAX Maximum Concentration
MCL Maximum Contaminant Level
MCLG Maximum Contaminant Level Goal
MRL Minimal Risk Level
mg/day milligrams per day
mg/kg milligrams per kilogram
mg/kg/day milligrams per kilogram per day
mg/L milligrams per liter
NPL National Priorities List
NOAEL No Observed Adverse Effect Level
PA Preliminary Assessment
PRG Preliminary Remediation Goal
PWS Public Water System
QA/QC Quality Assurance/Quality Control
RfD Reference Dose
RME Reasonable Maximum Exposure Concentration
RMEG Reference Dose Media Evaluation Guide
RS-PRG Residential Soil Preliminary Remediation Goal
SI Site Investigation
SMI Stibnite Mine Incorporated
TW-PRG Tap Water Preliminary Remediation Goal
g/g micrograms per gram
g/L micrograms per liter
USFS United States Forest Service


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