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12-C~d-1997 9:05AF1 FR014 ENG. WEST ELK P4INE 97C~ 9295L~50 P. 21 <br />NOU 6'97 15:18 FR BRRR ENGINEERING 612 832 2601 TO 9295595--0E26016 P.0"L~tO <br />-. <br />Bart Engineering ('i0. <br />11~t[oasxnunt <br />To: Norm fiery <br />F`to~ Philip $. Solseng <br />8abje~ West Elk Mine-Landslide <br />Date: November 8, 1997 <br />Project: 0828014RW W001 <br />The following is a discussion about the findings regarding the landslide <br />investigation, and based upon these findings, a work plan, schedule and budget for <br />subsequent action items. Also included is a summary of the discussion with Norm <br />Every on November 5, 1997 regarding current work activities. The test well <br />program will be formally documented in a report upon completion. <br />Findings <br />The following findings are mostly relevant to aoas section A-A from Figure 1 in <br />the Interim Report because of the need to understand a single cross section before <br />the entire landslide is interpreted. Most of the findings are based upon the recent <br />information from Golder Associates Faz dated 27 October, 1997 to Norm Every, <br />the information fiom the current test well program and the information from the <br />Interim Report (Barr, September, 1997) <br />1. The inclinometers I-6 and I-7 indicate a shear plane at about mid distance <br />between the ground surface and the cobble layer below the colluvium. <br />(Approumately 40 to 50 feet below the ground surface). <br />2. The shallow piezometers: B-8, B-9, 8-10 and B-11 near the substation; <br />~ N-1S, N.2S, and N-3S near the fresh water pond; and B-2, B-3, B-4 and B-5 <br />near the MBi pond indicate a shallow (and possible perched) groundwater <br />condition (within about 10 feet from the surface). The shallow groundwater <br />ofi260M\6a89LLCET <br />