2019-11-01_PERMIT FILE - M2018063

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MINING PLAN EXHIBIT D(CONT) There are no ditches crossing the site and no surface or subsurface water will be impacted by the mining operation. All interior pit slopes will be maintained with a pit-ward attitude so that historic drainage patterns can be maintained. This same slope management plan will prevent any offsite slides or other disruptions . Isolation berms or ditches will be constructed around the active mining area to prevent off site stormwater from contacting the disturbed area. All stormwater contacting the disturbed area will be retained on site and allowed to evaporate or soak into the underlying sand. No stormwater will be retained in the mine area for more then 72 hours . No dewatering will take place as this is a dry mine . A CDPS and stormwater permit will be obtained if needed. No U. S . Army Corps of Engineers 404 permit is necessary, as there are no water bodies on the site nor are there any wetland areas that will be disturbed by mining or reclamation. No mining will take place within the ephemeral drains of Black Squirrel Creek or Big Springs Creek. MINING TIMETABLE This estimated mining timetable is based on an average year and Ellicott Sand & Gravel LLC expects a specific year to vary widely from the average . If there are changes in the mining timetable we will discuss the reasons for the changes in the annual report that follows the change and modify it at that time. ESTIMATED MINING TIMETABLE (REVISED 7/2019) ACRES Stage ESTIMATED TOTAL TOTAL MINED MINED YEARS AREA MINED 100% SLOPES I 10-15 66. 1 49 . 9 22 . 3 27 . 6 II 15-20 213 . 7 173 . 0 124 . 7 48 . 3 III 4-6 54 . 2 39 . 2 9 . 7 29 . 5 IV 2-5 24 . 3 14 . 9 2 . 8 12 . 1 V 2-4 20 . 8 14 . 2 2 . 3 11 . 9 VI 1 20-30 1 268 . 4 1 222 . 3 1 151 . 5 1 70 . 8 Drainage LOM 86 . 2 0 . 0 0 . 0 0 . 0 Totals 52-80 733 . 7 513 . 5 313 . 3 200 . 2 9 (revised 10.31/19)