Duncan

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FACE="Arial" ><B> PHC-Reclamation, Inc.</B></FONT></div> <bR> <bR> <DIV ALIGN="LEFT"></DIV> <div> <B>                         </B></div> <div> </div> </td> </tr><tr> <td valign="top" height=400 width="100%" colspan=2 BGCOLOR="#FFFBF0" TEXT="#080000"> <div> <B>Duncan Shaft and Shafthouse Stabilization (Wyoming)</B><B> <A NAME="top"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B></div> <DIV ALIGN="LEFT"></DIV> <div> <TABLE BORDER="1" CELLPADDING="2" CELLSPACING="1" WIDTH="573" BORDERCOLORLIGHT="#006633" BORDERCOLORDARK="#006633" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 189 ><NOBR><div> <A HREF="clk_to_enlarge.htm" TARGET="_top" TITLE="clk to enlarge"><IMG SRC="05bf4b70.jpg" border=0 width="244" height="183" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="310"><div> <B>Problem:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">In August 2004, PHC Reclamation, Inc. (PHC-REC), together with its subconsultant Forsgren Associates Inc., performed an inventory and assessment of the physical and environmental hazards associated with the Duncan Mine property.  The property contains approximately 97 acres and is located approximately 30 miles south of Lander, Wyoming in Fremont County, Wyoming.<I> </I></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 251 ><NOBR><bR> <bR> <div> <A HREF="click_to_enlarge.htm" TARGET="_top" TITLE="click to enlarge"><IMG SRC="059f2b60.jpg" border=0 width="242" height="182" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="310"><div> <B>Objective:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">The mitigation of hazards at the Duncan Mine Property to acceptable levels of public safety can be accomplished without adverse impact to the environment and will not affect any of the areas of environmental concern described above. There will be environmental improvement as a result of eliminating toxic materials that could become airborne or transported into surface waters by major storm events. The proposed mitigation of high concentrations of heavy metals found in the mill processing waste material, mine ore waste and tanks can be done cost effectively resulting in safe access for the public.</div> <bR> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 205 WIDTH="246"><div>  <A NAME="3rd"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A><A HREF="clk_to_enlarge7b.htm" TARGET="_top" TITLE="clk to enlarge"><IMG SRC="058f6b90.jpg" border=0 width="246" height="185" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </tD> <tD VALIGN=TOP WIDTH="310"><div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">This PDR provides an overview of the work performed and briefly describes the project scope of work, the major work tasks completed, the recommended design concepts and the Engineer's cost estimates to mitigate hazards.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 233 ><NOBR><div> <A HREF="clk_to_enlarge7c.htm" TARGET="_top" TITLE="clk to enlarge"><IMG SRC="05df6db0.jpg" border=0 width="246" height="219" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="310"><div> <B>PHC Solutions:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">An inventory and assessment of the Duncan Mine property was conducted that included a detailed review of existing environmental investigation and historical documents pertaining to the environmental impact that the Duncan Mine property has had in the past. An overview of surface owners and lessees; mineral owners, mineral lessees and claimants; determination of drilling permitees and site eligibility was also made.  In addition, mining, structural and environmental engineering, geology, soils and vegetation, and limited on-site GPS surveying and mapping of the features were conducted. </div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 184 WIDTH="246"><div>  <A NAME="5th"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A><A HREF="clk_to_enlarge7d.htm" TARGET="_top" TITLE="clk to enlarge"><IMG SRC="05cf6a40.jpg" border=0 width="246" height="164" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </tD> <tD VALIGN=TOP WIDTH="310"><div> <B>Further PHC Solutions:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">PHC-REC and AML carried out a thorough review of all existing environmental information available for the Duncan Mine property in an effort to more completely assess the site and to streamline the field investigation phase of the project.  Information was obtained from the private property owner, AML,  Wyoming DEQ/Water Quality Division (WQD), Wyoming DEQ/Land Quality Division, Wyoming DEQ/Solid and Hazardous Waste Division, and the BLM.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 193 ><NOBR><div> <A HREF="clk_to_enlarge7e.htm" TARGET="_top" TITLE="clk to enlarge"><IMG SRC="05af6b90.jpg" border=0 width="246" height="185" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="310"><div> <B>More PHC Solutions:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">This review indicated that existing environmental data for the Duncan<FONT SIZE="2" COLOR="#FF0000" FACE="Arial" > </FONT>Mine property are fairly extensive in nature, have been collected over an extended period of time, and offer several observations and conclusions to the environmental condition on this property.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 237 ><NOBR><div> <A HREF="clk_to_enlarge7f.htm" TARGET="_top" TITLE="clk to enlarge"><IMG SRC="05ef5d60.jpg" border=0 width="245" height="214" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="310"><div> <B>Results:</B><B> <A NAME="last"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Analysis of the tailings material located on the Duncan Mine Property show that the tailings material is non-hazardous by EPA standards for land disposal requirements.  Removing them to a permitted local facility would be admissible.  Arsenic has repeatedly been found to be the primary constituent of concern in the soils and tailings.  </div> <bR> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Information from the WQD indicates that none of the waters within the Duncan Mine property are listed as Impaired or Threatened to become Impaired. </div> </tD> </tR> </TABLE></div> <div> <B>Inventory of Eligible Features On The Duncan Gold Mine Property:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Surface investigations were conducted in the field of each feature within the project site to locate and  identify the type and the extent of hazards to public safety.  Each feature was investigated by key members of the project team related to their areas of expertise. </div> <bR> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">All features were inventoried, investigated, evaluated, and photographed digitally.  Surveying and mapping was done for identification and location of each mine feature. Each feature was documented on Site Inventory Data Forms and assigned a site name specific to the area investigated.  Sampling of processed mine waste (tailings) was conducted.  Samples of these materials were collected and assayed to identify locations, types and concentrations of hazardous materials.</div> <bR> <div> <B>Historical Background:</B></div> <div> The foothills of the Wind River Mountains in central Wyoming are dotted with what remains of the gold rush that hit the area in 1867. Several ghost towns and deserted mines echo the triumph and failures of the masses of 19th century prospectors that populated the area.</div> <bR> <div> At the center of the gold rush were the boomtown of South Pass City, and the nearby Duncan Gold Mine Property. Discovery of the Carissa Lode in June 1867 resulted in the South Pass gold rush, Wyoming's largest 19th Century mining boom.  The area surrounding the Carissa Lode was originally named the Sweetwater Mining District. </div> <bR> <div> Nestled in a small valley west of the Duncan Gold Mine Property is South Pass City. As one walks along the main street, it is not hard to imagine the town in its heyday. For the rough and rowdy citizens of the old west, the jail on the south end of town was an absolute necessity. High on a hill east of town was a small one-room schoolhouse, and of course, no town in the old west would have been complete without a “Boot Hill.” The South Pass City cemetery is located on a rise just west of town.</div> <bR> <div> This frontier community played an important role in Wyoming politics. In the first territorial legislative, William Bright, a saloonkeeper, mine owner, and a representative from South Pass City wrote and introduced a woman's suffrage bill. Wyoming became the first state or territory to allow women the right to vote and hold office when the Governor signed the bill in December of 1869.</div> <bR> <div> In February of 1870, Esther Morris became the town's Justice of the Peace; this made her the nation's first female judge. Her appointment was the subject of controversy in South Pass City, but nevertheless she was successful.</div> <bR> <div> During its life, the Duncan Gold Mine Property produced over 3,830 ounces of gold.  All that remains of the Sweetwater mining district now is a few ghost towns and a few of the original mines including the Duncan Gold Mine Property. The Duncan Gold Mine Property and South Pass City area is the perfect place to get an authentic taste of the old west. </div> <bR> <bR> <div> <B><IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Hazards to Public Safety:</B></div> <div> Eleven distinct areas of disturbance were investigated. The hazards and existing conditions for each area were identified and inventoried, and preliminary costs to remediate all hazards to an acceptable level of public safety were developed. All identified hazards and potential hazards to public safety are described in the PDR. The hazards were grouped into three (3) categories:</div> <div> <I><U><IMG BORDER="0" SRC="Symb075c002a00c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Hazardous mine workings</U></I><I>. This group includes shafts, highwalls, adits and portals, subsidence areas, surface pits, spoil piles, tailings impoundments, and debris fields.</I></div> <bR> <div> <I><U><IMG BORDER="0" SRC="Symb075c002a00c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Unstable structures, buildings, and equipment</U></I><I>. This group includes the Duncan Shaft House, Duncan Mill Building, and miscellaneous outbuildings.</I></div> <bR> <div> <I><U><IMG BORDER="0" SRC="Symb075c002a00c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Hazardous materials</U></I><I>. This group includes outside mine waste dumps and processing waste material. Samples of these materials were collected and assayed to identify locations, types and concentrations of hazardous materials.</I></div> <bR> <div> <B><U>Hazard Mitigation:</U></B></div> <div> During the field investigations, PHC-REC noted on the Site Inventory Data Forms the presence or indication of “historic debris and/or structures,” if observed, at a particular inventoried area.  </div> <bR> <div> Final mitigation plans will be influenced by several factors including the Surface Owner's wishes, threatened and endangered species surveys (T&E), and cultural resource surveys.  In addition, they will be influenced by the availability of financial grants through the AML and the U.S. Department of the Interior, Office of Surface Mining Reclamation and Enforcement (OSM).</div> <bR> <div> Meetings and conversations between the State of Wyoming and the engineer and concurrence with all impacted parties will be a prerequisite to initiating any final design work. </div> <bR> <div> The mitigation plan recommended in the PDR addresses methods to obtain acceptable levels of public safety, stability, effect of the mitigation plan on the environment, and cost.  Engineering design criteria will include risk assessment, environmental and structural engineering analysis, surface water impacts, material strength and stability, and site access. </div> <bR> <div> The findings of the Duncan Gold Mine Property, as detailed in the PDR, have resulted in the following conclusions:</div> <bR> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">All hazards inventoried can be mitigated to acceptable levels of public safety while preserving the unique historic value of the site,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Costs of mitigation are consistent with AML's costs for reclamation of similar sites,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">No “fatal flaw” hazards are expected to be encountered during the reclamation, and</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Building stabilization and closure of mine openings should proceed as soon as possible.  </div> <bR> <div> Cost estimates include closure of all hazardous mine openings, stabilization and repair of all buildings to prevent further deterioration of historically significant features and to eliminate the potential for collapse, and the backfill of two hazardous vertical openings with processed tailings material. <FONT SIZE="2" COLOR="#FF0000" FACE="Arial" > </FONT></div> <div> <A HREF="#top" TITLE="Duncan"><B> Back To Top </B></A><B>               </B></div> <bR> </td> </tr></table></body>