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.- M-95-005/Adequacy 4/4/95 page 2 or drainage. Though the map submitted shows the direction of mining, there is no indication on either map of the stockpile areas for soil or overburden, gravel, processing areas, roads, water tanks, sediment or runoff control structures, mining phases, setbacks from boundaries or in-permit structures, etc. There are two cross-sections shown in the upper part of the map, but their details are not legible. If you wish to include these details, please make them larger. You may want to depict the pre-existing disturbance on the pre-mining map. If you plan to modify the boundary slightly as you had mentioned, in the area of the northern point, show that on the map. Please review Rules 6.2.1(2) and 6.4.3 for complete details about map requirements. EXHIBIT D - MINING PLAN Please describe where or how topsoil and/or overburden will be stripped before mining, and then stockpiled. In your situation, if the topsoil is stockpiled along the north edge of the pit, please describe exactly where in relation to the scarp it will be placed, so as to not erode down the hill (offsite). If the plan is to phase the mining, or only allow a certain maximum amount of acreage to be disturbed at one time, please state this. Please state what the slopes angles will be during mining and afterward. These details will become part of your plan and will affect your bond amount too. You stated that though there is usually a shale layer underlying the gravels in this region, you rarely encounter a uniform shale floor. Where shale is encountered, ripping, backfilling or grading occurs so shale is not left exposed. (Shale outcrops do not naturally occur in this permit area, indicating that there is little likelihood of encountering an underlying shale floor. Seeps and instability from surface shear are concerns regarding an underlying shale seam.) At least a foot of gravel cover will be left or replaced for later coverage of topsoiling and seeding. Be reminded that all activity and disturbance related to this operation must fall within the permit area boundary which you decide on. Remember that if your operation will affect land within r~We~(, 200 feet of a significant structure, you must prove that the °'` ~ operation will not adversely affect it, or provide evidence that a damage/mitigation agreement exists with the owner of that structure. EXHIBIT E - RECLAMATION PLAN You have stated that a minimum of four inches of topsoil will be replaced after mining. I encourage you to save all the topsoil possible, for later replacement, rather than exporting some portion of it offsite. If applicable, also state the average thickness of overburden or other material which will be replaced before the topsoil. During the site visit I noticed that the hillsides have much less soil (and grass) than the mesa tops. All "excess" soil or material produced during mining which is suitable as a growth