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1. Mine Site <br />a. The two topsoil piles adjacent to the County Road 77 mine access road. <br />Both piles total 800 cubic yards of material. Technical Revision No. 7 <br />provides the SAE demonstrations for these two piles totaling 0.15 <br />acres. This topsoil was derived from widening the access road in 1982 <br />when the road was privately owned. The Division has approved the <br />use to the topsoil for the reclamation of the portal area. The operator <br />has committed to scarifying, seeding, and mulching the topsoil <br />footprints. <br />b. The area to be reclaimed, referred to as the "Gulden Quality tipple <br />site," totaling 0.12 acres. This previously disturbed azea currently <br />drains to the lower bench pond, which will be n°moved with the final <br />reclamation plan approval in TR-07. The SAE demonstration for this <br />site has been submitted with TR-07. This site will use a silt fence for <br />sediment control. <br />c. The slopes of the Lewis Gulch Fill will again be exposed once removal <br />of the fill is accomplished. Therefore, the operator has committed to <br />regrading, seeding, and mulching of the slopes, totaling 0.75 acres. A <br />silt fence placed along the length at the toe of the disturbed slopes has <br />been proposed as sediment control. The SAE demonstrations have been <br />submitted with TR-07 for this reclamation scenario. <br />2. Sales Site <br />There are no SAE's currently at the sales site, nor are any plammed for the <br />fmal reclamation. All surfaces will be graded to drain downgradient east- <br />wazdly into the currently permitted sediment pond. <br />B. Stream Channel Diversions <br />There are no stream channel diversions associated with the Twin Pines No. 2 <br />Mine. <br />C. Sediment Ponds <br />The mine site has two sediment ponds, referred to as the upper bench and lower <br />sediment pond. The lower sediment pond is incised into the outslope of the <br />downstream face of the Lewis Gulch Fill. This fill is intended to be removed <br />during the reclamation operations to commence in 1995. Removal of the fill <br />constitutes a removal of the lower sediment pond. Technical Revision No. 7 <br />provides for alternative sediment control for the minimal azeas currently routed <br />into this pond. Pond design criteria can be found on pages 72 to 80 of the <br />permit application. <br />The sales site has only one sediment pond, which serves as the only structure <br />for treatment of surface flow on the site. All sedimentation ponds have been <br />designed utilizing standard engineering practices to retain the runoff from a <br />G <br />22 <br />