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IPitch Reclamation Project Colorado Mined Land Reclamation Board — 2014 Annual Reclamation Report <br />Photograph 4: Student from Western State University retained in 2014 <br />to Plant Trees on the Indian Rock Dump <br />( The 2006 work included placement of several large rocks and rock material across the lower end of the <br />constructed wetlands area to enhance sediment control and prevent previously placed tree slash from <br />washing out during thunderstorm events. In 2007, transplanting of cattails was undertaken on an <br />experimental basis. The relatively heavy snowpack in 2007 -2010 provided needed protection for the <br />cattails and many survived the past five years. From 2011 through 2013, additional cattails were planted <br />in the wetlands area from a source at a similar elevation. Homestake will examine the potential of adding <br />cattails in 2015 as necessary. The wetland experiments will continue to be monitored and enhanced <br />where possible in 2015. <br />3.2 Tie Camp Creek Disposal Cell <br />In 2001 and 2002, dismantled building material from the former RTP, concrete and contaminated soils <br />removed from the immediate drainage, were removed and placed in a Disposal Cell near the toe of Tie <br />Camp Creek Low -Grade Stockpile. This cell was created in mid -1990 as a clay -lined repository for <br />materials dredged from the Sediment Control Pond. The cell, as shown on Figures 2 and 3, was left open <br />with sufficient capacity for the RTP demolition material. The demolition material and contaminated soil <br />placed in the cell were crushed and compacted. In 2003, the cell was shaped and prepared for the <br />placement of a clay cap. Placement and compaction of a clay cap was completed in 2004. A final layer <br />of topsoil (minimum 24 inches) was added and compacted on top of the clay cap during 2005. In 2007 <br />and 2008, finish grading was conducted on the topsoil cover to eliminate any low spots where water could <br />pond, and to enhance drainage on and around the disposal cell. Harrowing, scarifying and reseeding of <br />the surface of the disposal cell area were completed in 2007, 2008, 2009 and 2010 to improve the cover <br />Pitch 2014 Reclamation Report 16ApnI2015_Cw.Docx 5 <br />