Laserfiche WebLink
<br />• for the faces of the 21 proposed spoil fills. Areas adjacent to fills #2, #3, #5, #8 and #9 <br />appear to be steep enough to present a slope stability concern. Based upon the brief <br />description of backfilling presented within the application, it is not possible for me to <br />deduce the degree of effort to be applied to the placement of this material. Therefore, it <br />is difficult for me to assess the probable sheaz strength of the backfilled spoil to be placed <br />within the mined azea. For these reasons I believe it appropriate for the Division to direct <br />the applicant to provide an analytical demonstration of the anticipated backfill mass to <br />demonstrate compliance with the Rule 4.14.2(1)(b) requirement "to achieve a minimum <br />static safety factor of 1.3". The geotechnical information necessary to demonstrate <br />compliance with the requirements of Rule 4.09 addressing the stability of the proposed <br />fills should provide the pazametric information necessary to complete this analysis as well. <br />~ 104. Reclamation plan, permit application page no. 2.05-59. Please detne what the topsoil <br />b~ I~ redistribution thickness will be throughout the various areas of the mine. <br />\\~~,__ C+- <br />hY` J 105. Permit application page 2.05-59 indicates that reclaimed roads will be ripped to a depth <br />bt- of ]8 inches prior to topsoil application or "loosened". Please define what LCC means <br />by "loosened". (Chisel plowed to a specific depth?) <br />106. LCC proposes to install contour furrows along the highwall reclamation area, permit <br />application page 2.05-63. Figure 2.05.4-19 has been included to show a typical design <br />for the furrows. Please elaborate on how the design was determined; contour interval, <br />height of furrow. <br />p07. Please provide plans for the sealing of the portal areas (Sections 2.05.4(2)(g) and 4.07). <br />,~ e5; ~' ~, Please note that these plans must be consistent with 30 CFR 75.1711 (7/1/96 or later). <br />X ~,,. ~~ 108. Table 2.05.4-1 states that 51.8 acres of riparian azea will be disturbed by topsoil <br />~ ~1 ~~ stockpiles. The Division believes this to be an error as Exhibit 10, Table V-1, indicates <br />that less than 1 acre of riparian community would be disturbed. Additionally, locating <br />1~' topsoil stockpiles in a ripazian azea would conflict with Rule 4.06.3(2). Please bring this <br />~i(d~' ^,~,~' acreage into agreement with actual planned disturbance. <br />~" Rule 2.05.5 Postminin>r Land Uses <br />~~\~~~ 1Q9. Please revise the statement on permit application page 2.05-75A that states, "A change of <br />~- land use following mining has been approved for some disturbed areas." At this point in <br />~~ ~ time, the Division has not approved a change in land-use. Please revise this statement. <br />4~ <br />~~ Rule 2.05.6(1) Air Pollution Control Plan <br />^5S° ~~~ <br />110. The applicant will need to provide the Division a copy of the Air Pollution Control <br />~ Division emissions permit (or other equivalent form of approval) for review and inclusion <br />`~~5~`r^` )( into the application materials before any coal mining operations may begin. <br />t~ <br />~~~~ <br />~" 1 <br />