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1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br />Eva(uanon oJReclammYon Succrrs for Phone if Bond Retrace <br />SOIL EROSION CONTROL <br />On September 30, 1991, Kaiser submitted Technical Revision No. 12 for permit C-81-024 to the <br />CDMG. The revision described the analysis used to demonstrate that the reclaimed CCM ~/1 <br />Mine is not contributing more sediment to Gordon Arroyo than was the situation prior to mining <br />disturbance. Kaiser's analysis was conducted using the SEDCAD+ software package. The <br />CDMG approved Technical Revision No. 12 on January 22, 1992. The ponds and associated <br />ditches were removed in February 1992. To date, no erosion problems have been encountered <br />on the reclaimed areas. <br />LOGIC FOR PHASE II RELEASE <br />Kaiser believes that the requirements for Phase II release at CCM N1 have been met to the intent <br />of the regulations and requests Phase II bond release. These requirements have been met as <br />follows: <br />1. Topsoil depths have been verified as being replaced according to the approved reclamation <br />plan. <br />2. Vegetative cover of the disturbed area is within 90 percent of the cover of the reference <br />area. <br />' 3. Sedimentation from the site has been controlled and the CDMG has approved the removal <br />of the sedimentation control system. No erosion of the site has been observed since the <br />ponds have been removed. <br />4. Species diversity is progressing toward the standard and contains a mixture of all the <br />required components. <br /> <br /> <br />1 <br /> <br /> <br />1 <br />5. Establishment of perennial cool-season and warm-season grasses, fortis and shrubs <br />provides conclusive evidence that a permanent, self-sustaining vegetative cover is present <br />within the disturbed area. <br />' bond.OST06J.1996~Scp¢mEcr IJ. 1996 6 <br />