_INSPECTION - C1981010 (77) - Laserfiche WebLink

Home Browse Search

July 19,2011 C-1981-010/Trapper Mine RDZ GENERAL MINE PLAN COMPLANCE: The mine was found to be in general compliance with the permit. The following mining activities were observed on July 19(blasting described in Explosives section): • In the large slide area(2006 slide in G Pit area)heavy equipment was building a new road,and an excavator was removing culverts that had been buried. • Near the east border,no unapproved disturbance was observed. • Drill rigs were seen in the K Strike Pit area. The Le Tourneau loader was loading trucks with spoil,and a dozer was pushing recently shot spoil into a pile. The Molly Brown dragline was idle for repairs. The following mining activities were observed on July 20(blasting described in Explosives section): • In the F Pit,the Baby Doe dragline was casting interburden to spoil piles west of the pit. The Queen Ann dragline was idle. ROADS—Rule 4.03: Many roads were observed during the inspection, including Life-of-Mine,North AE,Middle AE, South AE,Kl, K2,North A,Z3,Middle Z,Middle A,West Ash,Middle Ash,B/C Haul Road,and several pond access roads. All active haul roads were stable and were functioning as permitted at the time of the inspection. A scraper was grading the Middle Z Road during the inspection. The access road to the Oak Gulch ponds was washed out at the crossing of the stream. Several ditch-outs were inspected along the Life-of-Mine Road,and no significant erosion or other problems were observed. RECLAMATION SUCCESS -Rule 4.15,Rule 3: On the areas that were inspected from the roads and from walking,no erosion problems were observed,with two exceptions. Rills were observed on the reclaimed slope north of the Ash Pit(as they have been in the past). These are covered to some degree by vegetation,which will help heal them. In parcel F-AB-07,approximately one- quarter mile above topsoil pile F-2-07,rills were observed. Some of these have been treated with branches and are healing. Others have not been treated and are approximately two feet wide and 18 inches or more in depth. Continued monitoring of these rills is advised. White Top was observed in many areas of the mine site, including areas near Johnson#6 pond, and parcels F-AB- 06,F-AB-07,and F-AB-08. Cheat grass was also observed in many places,including F-AB-08. Canada thistle was observed above the access road crossing of Oak Gulch and near Johnson#6 pond. These weeds should be continually monitored and managed as required in the permit,which includes spraying of White Top. Some evidence of spraying was observed during the inspection. Number of Partial Inspection this Fiscal Year: 0 Number of Complete Inspections this Fiscal Year: 1 Page 4 of 11