2014-01-15_REPORT - C1981019 (2)

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South Tavlor Fill Inspection Certification On December 10th, 2013, 1 inspected the area in which the South Taylor Excess Spoil Fill is being constructed. This report covers activities associated with both the East Taylor Fill and the West Taylor Fill identified on Map 23A and Map 45 of the approved permit. The purpose of this inspection was to observe status of the fill placement. This inspection is necessary to satisfy the requirements of CDRMS Rule 4.09. 10 (1a) and Rule 4.09.1 (1 b). Weather conditions were 16 °F and partly cloudy, with 5 -10 mile per hour wind. There was between 5 -12 inches of snow at the time of inspection, with drifted snow in spots. West Taylor Fill with A -A' and B -B' Underdrain Area The toe is filled and sloped to the 7800 elevation and rip rap placement has been completed to the 7695 elevation in the West Taylor West Tributary and West Taylor East Tributary channels. Dumping continues at the 8000 elevation of the Temporary out of Pit Fill, with preparations being made to advance up to the 8050 elevation. A small portion of the southeast end of the East Tributary was excavated this quarter between the 7800 and 7915 elevations. This area will require final grading. Topsoil was staged in this area, with a ring ditch and berms constructed around it to prevent sediment transport from the active mining area into the topsoil and regrade area. Flows through the drain continue to contribute inflow to the West Taylor pond. During the prior year, the monitoring piezometer was drilled and completed. The current water level reading of 223.3 feet was obtained, a decrease of 0.2 feet from the previous quarter. No structural weakness, signs of instability, or other hazards were noted at the time of inspection. East Taylor Fill with C -C' Underdrain Area: The 7800, 7850, 7900, and 7950 dump benches are completed. The 8000 bench and all higher benches were inactive during this quarter. Design requirements for the spoil pile are addressed in Volume 13, Exhibit 21, Item 1, Introductory Letter. Inspection requirements during construction are further detailed in Volume 12, Section 4.09. No structural weakness, signs of instability, or other hazards were noted at the time of inspection. I am a Registered Professional Engineer in the State of Colorado. Being familiar with the Colowyo operation, and relying on the information provided to me by Colowyo Personnel, the construction activities related to the West and East Taylor Fill are in conformance, to the best of my knowledge and experience, as specified in the Introductory pages and the associated report found in Volume 13, Exhibit 21, Item 1 and other applicable requirements of the approved permit documents, a portion of CDRMS Permit C -81 -019. � •.....• Fes_ i� f i 47031 r i �� '.1i2 "gyp -1� •' '�"