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M-78-o72/Amandment adequacy 3/11/96 page 2 (Exhibit B, continued) There is no mention anywhere of the presence of permanent manmade structures, or whether there are none. (Your map shows a county road and right-of-way fence, both of which are structures.) Please identify all significant structures, including also any above- or below-ground utilities, pipelines, wells, etc., and the owner of each. The wildlife information in the original file is adequate. Please provide better water resource information, especially regarding location and depth of any nearby wells, and the nature of the flow in Hell Creek. Exhibit C - Mining Plan (You refer to the original file, which actually contained the Map in Exhibit C. The original Exhibit B is the Mining Plan.) The original plan is brief, and does not address several items required in this application. Please clarify whether equipment or fuel is to be stored onsite, and where; whether stockpiles of material will be stored onsite, and where; whether processing will occur onsite, and where; whether the entrance ramp will change location; how future operations will treat topsoil and/or overburden, especially in its stripping, stockpiling, protection during storage, and depth which will be replaced for reclamation; whether the pit will be excavated deeper; and how stormwater runoff will be addressed if it is an issue. Your original plan states that the pit will be 7 to 8 feet deep, with sideslopes of 5:1. Exhibit D - Reclamation Plan (The original file's information referred to is actually in old Exhibit E.) The original plan mentions natural appearing contours, and providing for drainage of the site. There are presently drainage or seepage "ditches" crossing the pit floor and leading to the creek. Are these to remain? What will be the depth of topsoil replaced? Will there be overburden used for growth medium? The original seed mix is adequate, but lacks information about the rate and method of application. Rates should be expressed in "pounds of pure live seed per acre (# PLS/acre)." The 50 pounds of nitrogen per acre looks fine, and might even be better applied one year after seeding. Will seed be applied by broadcasting or drilling? This affects the rate applied. I think straw mulch (or hay if desired) is fine too, but clarify how much will be applied, expressed in tons per acre. This information could be provided after requesting assistance from the MRCS office. Finally, please comment on the following: whether fence to exclude livestock is planned until revegetation is established, whether any ramps or roads are to remain onsite, how drainage from the county road will be controlled or diverted away from your pit slopes, and whether rip rap will remain, and where.