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AuEscailaaaestoa lW j Gillette, WY 866 -686 -7175 • Rapid City, SD BBB -672 -1225 • College Station, TX 888- 690 -2218 <br />CLIENT: Cotter Corporation Revised Date: 03/06/14 <br />Project: Schwartz -SW 02/04/14 S27321 Report Date: 02/24/14 <br />Sample Delivery Group: C14020109 CASE NARRATIVE <br />REVISED /SUPPLEMENTAL REPORT <br />The attached analytical report has been revised from a previously submitted report due to the request by Frank Adamic on <br />February 27, 2014 for the reanalysis of dissolved zinc on sample -001. The original dissolved zinc result is much higher than <br />the total zinc. That result has been confirmed and it is suspected that the original field filtered bottle was contaminated in the <br />field. Considering this, the laboratory filtered a new fraction from the raw bottle and reanalyzed for dissolved zinc. The data <br />presented here is from that recheck analysis. The report has been revised and replaces any previously issued report in its <br />entirety. <br />PREP COMMENTS <br />The prep hold time for the filtration of dissolved metals was exceeded by 22.1 days. <br />BRANCH LABORATORY SUBCONTRACT ANALYSIS <br />Tests associated with analyst identified as ELI -B were subcontracted to Energy Laboratories, 1120 S. 27th St., Billings, MT, <br />EPA Number MT00005. <br />Page 2 of 27 <br />