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Table D-3 Topsoil Stripping Areas <br />Mining phase Area Topsoil Volume <br />1 _ _ _ 15.0 Acres 12,100- CY <br />2 9.0 Acres 14,520 CY <br />3 - _ 6.4 Acres 10,325 CY Y <br />Total _ 3� 0.4 _Acres 3_6,945 _ CY <br />Note: The access road will not be topsoiled in reclamation. Phase 1 only has 50% of the topsoil as the other phases due <br />to prelaw mining. <br />Overburden is not anticipated in large quantities based on site inspections. Overburden may be <br />present in the currently unmined area, and will be placed as backfill in the final reclaimed mine. <br />Overburden is absent adjacent to the river in the previous hydraulicked tailings. <br />5. Flocculant Use <br />The Fairplay Au Pit may use floccuiant at times in order to improve the recycling of wash water in <br />processing. Flocculant is used in the water recirculation systems in mining operations that involve <br />significant material washing. The use of flocculant expedites the drop-out of sediment in process <br />waters within recirculation ponds. Due to the high clay content throughout the glacial debris and <br />alluvium deposit being mined, it is imperative to use flocculant to facilitate settling and thus <br />separation of fine low-density clay sediments from desirable cobbles, gravels, and high-density <br />gold. Several nearby placer mines in the area already use flocculants to improve water recycling in <br />their operations. <br />Flocculant to be used here is an anionic wet flocculent Hyperfloc AF852 produced by Hychem, Inc. <br />of California. This chemical is not harmful to fish or other animals unless it is dumped in full <br />concentration directly into the River in large quantities. See attached Material Data Safety Sheets. It <br />is safer than many other chemicals used for flocculating dirty waters today and the City of Denver <br />is using it in its drinking water plants. <br />5.1 System Design <br />One 150 -gallon tank of water will be set up adjacent to the sluice box, wherever it is placed in the <br />permit area. A 55 -gallon steel drum of the Hyperfloc chemical will be set up next to the 150 -gallon <br />water tank and the Hyperfloc chemical and water will be pumped from both tanks using small <br />Fairplay Au Pit March 2017 D-5 Greg U h!l nd Mwistm MIX <br />