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Moxh 2006 <br />Gulch Ioadout - 2005 ARRIlQi <br />analysis and this error is not considered significant. Furthermore, all selenium values were reported as <br />less than the method detection limit, which is consistent with what has been observed previously. <br />The observed concentrations in the HGDAL4 sample were generally similar to what was observed in <br />the December HGDAL3 sample. Most trace element concentrations were reported as less than the <br />method detection limit. There were reported concentrations for boron (0.60 mg/1), cadmium (0.0005 <br />mg/1) and manganese (0.81 mg/1). Major ionic constituents (i.e., calcium, magnesium, sodium, <br />bicazbonate, chloride and sulfate) were generally less than their respective values in the corresponding <br />HGDAL3 sample. As an example, the sodium concentrations were 1,170 mg/1 and 2,290 mg/1 for <br />HGDAL4 and HGDAL3, respectively, while the sulfate concentrations were 3,930 mg/1 and 7,690 <br />mg/1 for HGSDAIA and HGDAL3. <br />Time trend plots for common constituents aze presented in Appendix D. <br />Hydro-Environmental Solutions, Inc. <br />P.O. Box 772996 <br />57 )018 Street, Suitt B <br />StemnboN Spnugt, CO 80477 <br />(970) 877-6725 <br />