Superfund and Mining Megasites Lessons from the Coeur d'Alene River Basin (2005) / Chapter Skim
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Appendix B. Evaluation of the Methodology to Determine Background Concentrations in the Lower Basin
Appendix B. Evaluation of the Methodology to Determine Background Concentrations in the Lower Basin
Pages 440-443
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The data to determine these background concentrations were derived from an ambitious coring study conducted in the lower basin to determine the vertical extent of metal contamination and estimate the volume of contaminated sediments within the basin (URS Greiner, Inc.
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APPENDIX B 441 tration in milligrams per kilograms (mg/kg) as the independent variable and the normal standard variate of the population as the dependent variable using the methods described in Section 3.1 (see URS Greiner, Inc.
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From page 442... ...
3-6) the following: This approach is believed to provide a reliable means of estimating back ground concentrations for each COPC in the Lower Basin.
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From page 443... ...
Environmental Protection Agency, Region 10, Seattle, WA, by URS Greiner, Inc., Seattle, WA, and CH2M Hill, Bellevue, WA. October 2001.
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