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limit otherwise is 5000 ug/1. None of these sensitive plant species are <br />grown commercially in this area. <br />Two samples had lead values that were less than an elevated detection <br />limit (200 ug/l (or 400 ug/1) vs. a normal detection limit of 40 ug/1), <br />which was higher than the CDPHE standard of 100 ug/l. The cause of this <br />elevated detection limits was a decision by the laboratory to dilute the <br />sample prior to analyses in order to reduce the effects of interferences <br />(primarily, high salinity). <br />In a letter dated June 5, 2008, Tom Kaldenbach of the CDRMS stated that <br />"Groundwater points of compliance are unwarranted at the Hayden Gulch <br />Loadout...". He further concluded that "... any leachate originating at the <br />loadout would likely be of better quality than native groundwater in the <br />Lewis Shale which has high concentrations of dissolved solids." This <br />letter was provided here in the 2008 AHR, Figure 3 (Appendix A). <br />Monitoring conducted this year at the Loadout supports these <br />conclusions. <br />• <br />5