Laserfiche WebLink
June 6,2011 C-1982-057/Seneca II-W Mine SLB <br /> TAHRC 6A,between the TAHR outslope and TAHRC 12 outlet, and on the outlet side of TAHRC 16. <br /> Houndstongue was observed around Pond 016. The operator needs to spray these patches before they produce <br /> seed. <br /> SLIDES and DAMAGE -Rule 4.12: <br /> The slides in the immediate vicinity of Pond 006 have continued to move since the last(May 16) <br /> inspection. The toe bulge of one of the slides is moving toward the emergency spillway of Pond 006; the operator <br /> should continue to monitor this area to ensure that the spillway is not compromised. The two inlet area slides <br /> should also be monitored to ensure that the required pond capacity is maintained. <br /> The slides in and around Pond 016 and Pond 016A also do not appear to have stabilized. There had been <br /> additional movement in the area between the two ponds, and a new bowl shaped slide was observed in the lower <br /> south slope of the 016 drainage, as well as a slide at the top south side of the drainage. <br /> A small slide was observed along Haul Road K, approximately 1000' south(along the road) from culvert K-1. <br /> A large slide in the north mining area(Pit D) extends 1,400' from approximately Stock Tank T20 to the property <br /> line/fence corner to the west. <br /> Small slumps were observed in the sideslopes of Pond 015. <br /> A slump and linear crack were observed above Pond 017, on the north side of the drainage, beginning at the pond <br /> inlet,and extending about 150' up the slope. Approximately 75' of the fissure extends into an undisturbed area. <br /> Small slumps were also apparent in the PM channel between T25 and Pond 017, and at the inlet of T25. <br /> Two small slumps were observed on the north slope above the upper reach of PM3. <br /> There were small slumps on the east side of the TAHR at the overhead powerline crossing. <br /> The operator discussed a possible relocation of the MEHR around Pond 006 to move it away from the inlet area <br /> slides,and also discussed the possibility of removing road LU-2 above the well pumphouse slide. <br /> Representatives from the Division are planning to schedule an on-site meeting with DRMS,the operator(and the <br /> operator's consultant, at his discretion),and personnel from the Colorado Geological Survey sometime in July to <br /> assess the areas of instability,the likely cause(s)and possible solutions to the problem(s). <br /> Number of Partial Inspection this Fiscal Year: 10 <br /> Number of Complete Inspections this Fiscal Year: 4 <br /> Page 4 of 9 <br />