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Phase IV Weekly Summary No. 40 Page 2 003-2203 Ames continued excavation and removal of the old Highway 67 asphalt, fence, and concrete crossing. A Cat 375 loaded several Cat 777 haul trucks, which then hauled the waste to the "Sky Dump" Ames resumed SF blast drilling in Phase IVa at EOL station 21+00 and 9640 road station I 1+00. Ames blasted on November 9s' at 16:05. Phase IVb Ames did not perform excavation remediation of Phase Nb underground workings during this reporting period. Ames performed clearing and grubbing of topsoil and removed trees. A Cat D7 and a Cat 330 track- hoe removed trees and stripped topsoil from tha southwestern azea of Phase IVb. Topsoil and slash were piled locally for relocation at a later date. Ames conducted blast drilling where confirmation drilling had identified underground workings within the remediation zone at UG-206. A lateral at UG-206 was blasted on November 7a' at 17:11. Ames conduced confirmation drilling on known underground workings UG-206 and UG-217. Laterals were completely delineated. Ames continued to excavate azound and demolish the retaining wall at the Carlton Mill. Ames used • Caterpillaz 330 and 375 excavators to remove material and wall. Phase IVc Ames performed excavation remediation activities for underground working UG-234a. UG-234a will be remediated as a "Deep Shaft". Ames performed clearing and grubbing of topsoil and removed trees. A Cat D7 and a Cat 330 track- hoe removed trees and stripped topsoil from the northwestern area of Phase IVc, neaz the existing topsoil pile (Located west of the Phase IVc limits). Topsoil and slash were piled locally for relocation at a later date. Ames did not perform any cut or fill activities within the Phase IVc azeas during this reporting period. (See Attachment A for approximate construction locations for all Phase IV azeas.) Field Monitoring and Testing Activities Golder observed construction activities associated with Phase N earthworks. All construction materials and soil materials 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. r1 L J Phue Neaa Nov4.lo.doc Golder Associates Inc.