ATSDR - PHA - BLACKBIRD MINE, COBALT, LEMHI COUNTY, IDAHO

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PUBLIC HEALTH ASSESSMENT

BLACKBIRD MINE
COBALT, LEMHI COUNTY, IDAHO
CERCLIS NO. IDD980725832

January 12, 1995

Prepared by

U.S. Department of Health and Human Services
Public Health Service
Agency for Toxic Substances and Disease Registry
Division of Health Assessment and Consultation
Atlanta, Georgia

TABLE OF CONTENTS

A. Site Description and History

B. Site Visit

C. Demographics, Land Use, and Natural Resources Use

D. Health Outcome Data

COMMUNITY HEALTH CONCERNS

ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS

A. Environmental Contamination

B. Quality Assurance and Quality Control

C. Physical and Other Hazards

PATHWAYS ANALYSES

A. Completed Exposure Pathways

B. Potential Exposure Pathways

PUBLIC HEALTH IMPLICATIONS

A. Toxicological Evaluation

B. Health Outcome Data Evaluation

C. Community Health Concerns Evaluation

LIST OF TABLES

Table 1. Contaminant Concentrations in Surface Deposits (e.g., Tailings, Waste Rock, Mill Debris, Dredge Spoils)

Table 2. Contaminant Concentrations in Groundwater Samples (Seep & Adit Discharges)

Table 3. Contaminant Concentrations in Surface Water Samples

Table 4. Completed Exposure Pathways

Table 5. Potential Exposure Pathways

LIST OF FIGURES

Figure 1. General Site Location Map

Figure 2. Detailed Site Location Map

Figure 3. Surface Deposit Sample Locations, Big Deer and Upper Blackbird Creek Drainages

Figure 4. Surface Deposit Sample Locations, Lower Blackbird Creek Drainage

Figure 5. Water Sample Locations, Big Deer Creek Drainage

Figure 6. Water Sample Locations, Blackbird Creek Drainage

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Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
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Table 1.	Contaminant Concentrations in Surface Deposits (e.g., Tailings, Waste Rock, Mill Debris, Dredge Spoils)
Table 2.	Contaminant Concentrations in Groundwater Samples (Seep & Adit Discharges)
Table 3.	Contaminant Concentrations in Surface Water Samples
Table 4.	Completed Exposure Pathways
Table 5.	Potential Exposure Pathways

Figure 1.	General Site Location Map
Figure 2.	Detailed Site Location Map
Figure 3.	Surface Deposit Sample Locations, Big Deer and Upper Blackbird Creek Drainages
Figure 4.	Surface Deposit Sample Locations, Lower Blackbird Creek Drainage
Figure 5.	Water Sample Locations, Big Deer Creek Drainage
Figure 6.	Water Sample Locations, Blackbird Creek Drainage