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<br /> A dike will be constructed along the south edge of St. Vrain Creek <br /> to keep high waters from encroaching upon the permit area. <br /> <br /> D. Size of Areas <br />' (i) Major disturbance - If extraction occurs at a rate of 200,000 tons <br /> per year, about five acres will be mixed each year. Therefore, it <br /> d <br />ill b <br />t <br />i <br />i <br />i <br />i <br />d <br />i <br />fi <br />i <br /> e s <br />ppe <br />pate <br />me w <br />r <br />s ant <br />c <br />that approx <br />mately <br />ve acres at a t <br />' of topsoil and overburden each year. <br /> (ii) Moderate disturbance - Five to ten acres will be devoted to storage <br />' and equipment areas, roadways, and overburden areas. The ponds will <br /> grow in total acreage by about five acres or less per year. <br />1 (iii) over <br />il <br />k <br />Mi <br />di <br />t <br />i <br />d <br />hi <br />h <br />t <br />t <br />b <br />S <br /> - <br />serve <br />oc <br />p <br />e <br />nor <br />s <br />ur <br />creen <br />ng moun <br />s w <br />o s <br />ance - <br />c <br />' burden and topsoil will be temporarily revegetated with grasses to <br /> avoid erosion problems. The completed areas between ponds and the <br />' river will also be revegetated. The area of minor disturbance will <br /> be less than five acres per year. <br /> <br /> E. Time Tables <br />' The following table illustrates mining and reclamation timing for the <br /> four stages of mining in years: <br /> <br /> STAGE 1 STAGE II STAGE III STAGE IV <br /> Mining 1 - 7 8 - 16 17 - 23 24 - 35 <br /> Reclamation 2 - 8 9 - 17 18 - 24 25 - 36 <br /> <br /> <br />