Laserfiche WebLink
Phase IVb Weekly Summary No. 7 Page 2 003-2203 <br />Ames continued placement of Low Volume Solution Collection piping through the week of December <br />1, 2002. Ames placed 4-inch PCPE pipe in the locations defined by the plan drawings. Placement of <br />the piping layout wiU continue as placement of the LVSCF material progresses to the east. <br />Ames continued hauling and ~lacement of Low Volume Solution Collection Fill (LVSCF) in Phase <br />Nb on December 3`a, Sa', 6 ,and 9a' through the 20a'. Ames completed the construction of the <br />primary 10-foot haul road on December 9a' into the Phase IVb PSSA west end berm area. Ames <br />began placement of the 3-foot minimum lifi thickness on December 3`a and continued placement <br />during the weeks of December 9`s through the 20a'. <br />Ames removed Drain Cover Fill (DCF) materials from the Phase N a/b tie-in azea. <br />Ames performed backfill and compaction of the interior PSSA anchor trench around the perimeter to <br />shuctural fill grade. <br />Ames performed excavation remediation efforts for underground working UG-489 on December 2"d. <br />Ames performed SF blast drilling on Substation hill, west slope, on December 9~' through the I1'~, and <br />performed a subsequent blast on the hill on December 11~`. <br />Ames performed local cut to fills of SF materials along the south side of Substation hill. Ames also <br />hauled away oversize materials to the uncontrolled fill and hauled in SF materials from the west <br />slope of the Substation hill and from the Ames maintenance azea. <br />Phase IVc <br />Ames performed excavation remediation activities for underground workings, UG-234a, UG-236, <br />UG-498, UG-499, and UG-508. <br />Ames performed confirmatory drilling activities associated with the Phase IVc construction area on <br />underground working UG-304. Ames performed blasts at UG-304 on the 5"' and 19a' of December. <br />Ames placed Concrete Plug materials (CP) at UG-269, UG-498, UG1199, and UG-504, Cemented Rock <br />fill (CR) at UG-221, UG-288/289, UG-500, UG-502, UG-503, and UG-506, geogrid at UG-234a and <br />UG-236, and Structural Fill (SF) over previously remediated workings at UG-234a, UG-236, UG- <br />221, UG-500, UG-502, UG-503, UG-506 and UG-499. <br />Ames performed local cut to fills of SF materials along the access road on Raven hill and hauled <br />away oversize materials to the uncontrolled fill in Phase N b. <br />Field Monitorine and Testing Activities <br />Golder observed construction activities associated with Phase N earthworks. All construction <br />materials and soil materials placed were verified as suitable, and construction methods were in <br />accordance with project specifications. Removal of oversized and deleterious material from all fill <br />vnese~w,n~o~-si.aa Golder Associates Inc, <br />