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2.2.4 Geochemical Evaluation Sampling <br /> In order to investigate further the source of higher selenium and uranium in the northern <br /> portion of the site,Telesto installed four temporary piezometers and collected samples from <br /> four additional monitoring wells. Samples were analyzed for multiple parameters to allow <br /> geochemical analyses. Table 6 provides the dissolved results for selenium and uranium. <br /> In general, Table 6 results are consistent with MW-06 and MW-10. Appendix C provides <br /> a complete record of all the extra sample results from ALS. <br /> One of the primary components to water quality analyses when evaluating constituent <br /> concentrations that are affected by oxidation state(e.g., uranium,selenium, iron)is water's <br /> redox state(reported as Eh or pe). A straightforward method of estimating redox state for <br /> most metals is to measure the in-situ (i.e., field) concentrations of metal couples. Telesto <br /> performed such an exercise using the ferrous and ferric iron couple, and the results are <br /> reported in Table 7. <br /> Loveland Ready-Mix Concrete 8 December 2019 <br /> 20200407 known bast hne.,atcryualin summon docs <br /> TELESTO <br />