Laserfiche WebLink
2.0 Summary of Activities <br />2.1 Snow Plowing of Access Road (June 12, 2008) <br />Prior to any activity at the Tiger Mine area, the primary access road required plowing of <br />snow drifts from the previous winter. The snow drifts varied in depth of approximately <br />lft to aft which would inhibit access to the site by the drilling outfit (HP Geotech). CMC <br />hired Joe Nachtrieb, retired Professor of Heavy Equipment Operations, to perform the <br />plowing. Overall, a 100 yard stretch of the road was plowed using a Jolu1 Deere brand <br />bacldloe/front loader. Pictures of this activity are found in Appendix A. <br />2.2 Repository Test Pits (June 19, 2008) <br />Due to the variable distribution of soil within the project area, test pits were performed to <br />ensure that the area for the proposed repository contained sufficient amount of soil for <br />capping the relocated mine waste. A total of seven test pits were completed with varying <br />depths of 6" to over 8 feet were completed on June 19, 2008. GPS coordinates have yet to <br />be collected. Test pitting was done by a Joe Nachtrieb utilizing the same equipment that <br />was used for snow plowing. Geologic logging was done by Kato Dee (CMC staff). Photo <br />documentation of this activity is found in Appendix B. <br />2.3 Tiger Mine Waste Pile Drilling (June 16 - 17, 2008) <br />The main Tiger Mine Waste Pile was drilled to aid in accurately deternuning the pile <br />volume. This is essential for the design of the repository in order to accommodate the <br />volume. Nine boreholes (Appendix C) were drilled by HP Geotech with a 4" solid auger <br />down to refusal or bedrock. Borehole logging was performed by Kato Dee (CMC) with <br />the aid of CMC summer student interns. A soil core was retrieved at every 5 foot depth <br />interval for material description and chemical analysis on the CMC campus. Borehole <br />depths ranged from 11.5' - 31.5' bgs on the Tiger Mine Waste Pile. Chemical analysis of <br />the cores will include: <br />• XRF analysis for total metals; <br />• Paste pH <br />• Specific Conductance and; <br />• Temperature <br />Borehole logs that also include photo documentation of each core interval are found in <br />Appendix D. <br /> <br />