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HEALTH CONSULTATION

STEPHENSON BENNETT MINE
ORGAN, DONA ANA COUNTY, NEW MEXICO


CONCLUSIONS

(1) Residential soil samples and dust samples collected inside the homes contained lead at concentrations of health concern.

(2) Zinc and cadmium contamination in residential soil and cadmium in house dust does not pose a significant health hazard.

(3) Soil and house dust samples from some locations contained arsenic at levels of health concern. Soil samples that contain elevated concentrations of arsenic also contained very high concentrations of lead.

(4) Ambient air particulate samples contained arsenic at concentrations of health concern.



RECOMMENDATIONS
(1) Remediate lead and arsenic contamination at the source (Stephenson Bennett Mine) and in residential soils that exceed the cleanup levels.

(2) Delay interior house cleaning until outdoor sources of contamination are removed.

 

  Kenneth G. Orloff, Ph.D., DABT
Senior Toxicologist



REFERENCES

(1) Agency for Toxic Substances and Disease Registry; Toxicological Profile for Lead - Update; ATSDR/TP-92/12; April 1993.

(2) Agency for Toxic Substances and Disease Registry; Exposure Investigation for Stephenson Bennett Mine; July 28, 1997.

(3) Agency for Toxic Substances and Disease Registry; Toxicological Profile for Arsenic - Update; TP-92/02, April 1993.

(4) U.S. Environmental Protection Agency; Air Quality Criteria for Lead; page 10-50; Volume III; EPA-600/8-83/028cF; June 1986.


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