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C7 <br />Hi Karl- <br />Thanks for returning my call. I was on the other line. My questions are related to the assumed exposure levels for workers, <br />surveyors and campers. <br />1. Is the worker based on the 250 days/yr. for 25 yrs similar to the <br />EPA industrial numbers? <br />2. Is the camper based on the 14 day per year BLM limit on dispersed <br />camping? <br />i <br />3. What are the assumptions for surveyors? <br />I'm working on a project where we're using your criteria for toxicity screening of waste rock. I want to make sure that I'm <br />using the correct values in relation to the post-mining land use. <br />Thanks very much <br />Mark <br />2 <br />•