2009-09-25_PERMIT FILE - M2009076 ‎(42)‎

• Permit No: M2009076
• IBM Index Class Name: PERMIT FILE
• Doc Date: 9/25/2009
• Doc Name: EPA Superfund Record of Decision
• From: Venture Resources
• To: DRMS
• Media Type: D
• Archive: No

TABLE 1
SUMMARY OF RISK ASSESSMENT RESULTS FOR HUMAN EXPOSURE
TO CONTAMINANTS AT THE CLEAR CREEK/CENTRAL CITY S ITE
•
TOTAL EXCESS UP PER-BOUND
LIFETIME CANCER RISK
AVERAGE MAXIMUM PLAUSIBLE
EXPOSURE PATHWAY CASE CASE
INHALATION OF DUST ENTRAINED
BY WIND
GREGORY 7 X 10-6 3 X 10-5
ARGO 2 X 10-5 3 X 10-5
INHALATION OF DUST GENERATED
BY MOTORCYCLES
GREGORY 5 X 10-6 1 X 10-4
INCIDENTAL INGESTION OF SOIL
AND TAILINGS
EPISODIC EXPOSURE
GREGORY 2 X 10-5 1 X 10-4
ARGO 2 X 10-5 1 X 10-4
BIG FIVE 1 X 10-5 8 X 10-5
NATIONAL 2 X 10-5 1 X 10-4
QUARTZ HILL 2 X 10-5 1 X 10-4
INCIDENTAL INGESTION OF SOIL
AND TAILINGS
RESIDENTIAL EXPOSURE
GREGORY 1 X 10-4 6 X 10-4
ARGO 1 X 10-4 6 X 10-4
BIG FIVE 8 X 10-5 4 X 10-4
NATIONAL 1 X 10-4 6 X 10-4
QUARTZ HILL 1 X 10-4 6 X 10-4.
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