PERMFILE51440 - Laserfiche WebLink

Home Browse Search

the Phase IVa azea during this reporting period. Geomembrane panels P185 through P369 were deployed, seamed, and tested by Poly-Flex. Destructive fusion seam samples DF-77 through DF- 132, and extrusion seam samples DX-3 through DX-7 were mazked, removed, and tested. Ames resumed placement of Drain Cover Fill (DCF) and haul road construction in the Phase IVa area. The DCF was placed using CAT D6, D8, and D9 dozers. The DCF was placed on the floor and slopes, advancing from north to south. Phase Nb i • I~ Ames continued placement of Structural Fill (SF) in the Phase IVb area. Ames placed SF above the Phase III diversion channel, at the old haul road below the substation, and at the western end of the PSSA floor. Ames also continued slope recontouring in the Phase Nb area on the northern PSSA slope. Ames hauled oversize material from the Phase IVb area to an uncontrolled fill site. Ames performed confirmatory drilling activities associated with the Phase Nb construction area on underground workings UG-214, UG-215, UG-493, the Ophir tunnel, UNK-I1, UNK-14, and UNK- 15. Ames performed excavation remediation activities for underground workings UNK-11, and UNK-13. These workings were observed and verified to be "Shallow or Deep", as defined in the drawings and will be remediated accordingly. Ames continued blast drilling of underground workings within Phase Nb at iJNK-11, iJNK-13, and UNK-l4. Ames blasted underground workings delineated by confirmation drilling at UNK-lion July 16`~ at 17:00 at UNK-13 on July 18~' at 17:00, and at UNK-14 on July 24"' at 17:00. Ames continued construction of the Phase Nb Primary and Secondary underdrains by excavating the trenches and placing materials. Ames began construction of the Secondary underdrain below the substation hill. Phase IVc Ames did not conduct any construction activities in the Phase Nc azea during this reporting period. Field Monitoring and Testing Activities Golder observed construction activities associated with Phase IV earthworks. All construction materials and soil materials placed were verified as suitable, and construction methods were in accordance with project specifications. Removal of oversized and deleterious material from all fill azeas was observed. Golder observed Structural Fill (SF) placement in Phase N for lift thickness, moisture content, and compactive effort. Phase IVe S8 July 1421 sbc Golder Associates Inc.