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ug /1) , which was higher than the CDPHE standard of 10 ug /l. The cause <br />of this elevated detection limits was a decision by the laboratory to <br />dilute the sample prior to analyses in order to reduce the effects of <br />interferences (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 />Summary <br />The Loadout appears to have little to no impact on the surface and <br />ground water systems in the area. Irrigation return water upstream of <br />the Loadout, along with topsoils derived from the Lewis Shale (which has <br />naturally elevated concentrations of selenium and dissolved solids), are <br />dominate in determining the water quality in the vicinity. <br />5 <br />