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26,2002 -2- 003-2203 <br />The repair work on the ESP consisted of repairing holes in the pond 80-mil HDPE liner. <br />That occurred during the installation of the High Volume Solution Collection System during <br />the spring of 2002. Figure I shows the location of the repairs on the 80-mil HDPE <br />geomembrane. As an added protective measure, CC&V elected to install an 80-mil LLDPE <br />(single-sided textured) geomembrane liner over the entire pond bottom. Figure 1 presents a <br />panel layout for the 80-mil LLDPE liner. The edges of the LLDPE geomembrane were <br />extrusion welded to the pond HDPE liner. The LLDPE to HDPE extrusion welds were tested <br />and found to have a strength equal to or greater than the 80-mil LLDPE geomembrane. <br />If you have any questions or comments regazding the repair of the ESP liner, please contact <br />me at (303) 980-0540. <br />Sincerely, <br />GOLDER ASSOCIATES INC. <br />John F. Lupo, Ph.D., P.E. <br />Sr. Project Manager <br />BN/JFL:dIs <br />Attachments <br />~:~omzzosm~oo~sart.pmvozwo3zzo;.o~ao.oauvn..aoc Golder Associates <br />