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Human and Ecological Risk Assessment - Earthjustice

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Appendix LTime to Peak Concentration at Receptor Well100908070Percentile605040302010No LinerClay LinerComposite Liner00 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000Time to Peak Concentration (years)35.6% of composite liner results have no infiltration <strong>and</strong> are not plotted on this graph.Figure L-14. Time to peak distribution for selenium IV: surface impoundments, all wastetypes, full 10,000 year time frame.100908070Percentile605040302010No LinerClay Liner00 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000Time to Peak Concentration (years)35.6% of composite liner results have no infiltration <strong>and</strong> are not plotted on this graph.Figure L-15. Time to peak distribution for selenium IV: surface impoundments, all wastetypes, shorter time frame.April 2010–Draft EPA document. L-10

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