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HEALTH CONSULTATION

BUNKER HILL MINING AND METALLURGICAL
KELLOGG, SHOSHONE COUNTY, IDAHO


CONCLUSIONS

  • The toxic wastes at the Bunker Hill--Right-of-Ways (ROW) site are a public health hazard. People living in the vicinity of the ROWs of the Bunker Hill site have been exposed to metals that can produce adverse health effects in the long term. The risk of such exposure continues to be present. It is most likely to occur from incidental ingestion of the soil. Exposure via inhalation is also possible. Care must be taken to prevent further exposures.

  • Because contamination migration and disposition into populated areas could pose a threat to children displaying pica behavior, controls need to be put into place to prevent such migration from occurring.

  • Some potholes and other signs of ROW deterioration were seen during ATSDR site visits. Such deterioration may indicate that additional remediation is warranted to ensure that remedial action objectives are met. In addition, a review of the ICP may be warranted.

RECOMMENDATIONS

  • Until the areas sampled have been remediated, action should be taken to cease or reduce exposure to the contaminated soils (i.e., post notices of possible exposure hazards due to high lead content in soils and implement revegetation to prevent/reduce migration of contaminated soils).

  • Continue to monitor the ROWs for rate and level of recontamination. This is particularly important following flooding and storm events, since the likelihood of re-contamination and damage due to run-off from surrounding hillsides and properties is increased. Ensure oversight and enforcement of current ICP. However, a review of the ICP should be done to determine the program's overall effectiveness in preventing human exposure to lead and other site contaminants.

  • Maintain structural integrity of the ROWs. Consider the addition of storm drains and concrete curbs to prevent or reduce problems associated with drainage of lead from gravel ROWs into residential and/or remediated yards.

REFERENCES

  1. TerraGraphics Environmental Engineering, Inc. 1998 Kellogg and Smelterville ROW data summary report. May 1999.

  2. TerraGraphics Environmental Engineering, Inc. Draft 1999 five year review report Bunker Hill Superfund site. October 1999.

  3. TerraGraphics Environmental Engineering, Inc. Summary of lead health intervention and source removal efforts 1985-1996. October 1997.

  4. Agency for Toxic Substances and Disease Registry (ATSDR). Toxicological profile for lead. Atlanta: U.S. Department of Health and Human Services; July 1999.

  5. Agency for Toxic Substances and Disease Registry. Public health assessment guidance manual. Atlanta: US Department of Health and Human Services; 1992.

PREPARERS OF REPORT

Déborah A. Boling, MPH
Toxicologist
Superfund Site Assessment Branch
Division of Health Assessment and Consultation


ATSDR Regional Representative:

Richard Kauffman, MPH
Public Health Advisor
EPA Region X



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