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alluvial aquifer. <br />The surface recharge capacity of the alluvial material in Scullion Gulch may <br />be reduced due to the construction of cuts and fills in the portal areas. This <br />disturbed area is small relative to the total area of Scullion Gulch and <br />therefore impacts are expected to be very minor. <br />Due to the presence of Kenney Reservoir, water withdrawal from the White <br />River lagoon will not cause measurable drawdown in the alluvium at the well <br />field site. The quantity of water that will be pumped is less than one percent <br />of the low flow of the river. <br />In summary, the impact of the proposed mine on ground water will be <br />localized, with no significant impacts expected on a regional basis, due <br />primarily to the small quantity of ground water in the area. <br />No significant cumulative hydrologic impacts are expected as a result of the <br />mining activities at Deserado Mine. The Division finds, in accordance with <br />C.R.S 34- 33- 114(2)(c) and Rule 2.07.6(2)(c), that the operation has been <br />designed to prevent material damage outside the permit area. <br />IV. Topsoil — Rule 4.06 <br />Soil information can be found in Volume 3, Section ILI, Volume 4, Section V, and <br />Volume 4, Section IV, Appendix IV A. <br />A. The Division previously found that the "reverse sequence soil replacement" plan, in <br />conjunction with the field trials, is appropriate for refuse area reclamation, pursuant to <br />Rule 4.06.2(2)(a). This finding was based on field observations of topsoil and subsoil <br />stockpile vegetation cover, evaluation of topsoil and subsoil chemical and physical <br />properties, and observation and evaluation of RP -1 revegetation data. The subsoil <br />will be more suitable for sustaining desired vegetation than is the available <br />cheatgrass- infested topsoil. Within the refuse areas, a minimum of one foot of topsoil <br />will be replaced, with a minimum nontoxic cover (topsoil and subsoil) thickness of 30 <br />inches. The operator has committed to document that suitable quantities of <br />topsoil /cover soil material are being salvaged. <br />V. Sealing of Drilled Holes and Underground Openings — Rule 4.07 <br />Sealing of wells, holes, and other openings is discussed in Section V.F of Vol. 4 of the <br />permit application. <br />A. Underground openings requiring sealing at the mine site include mine portals, mine <br />shafts, groundwater monitoring wells, one alluvial water well, gas injection <br />36 <br />