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<br />temporary stockpile areas in the exc or adjacent areas shall have the topsoil removed first, <br />except where topsoil is to be stockpiled. <br />8. Soils wasted to the disposal terrace shall be dozed or dumped from the elevation determined <br />to be the bottom of the adjacent gravel deposits and dozed into the depression. Shaping, <br />grading and topsoiling of the down-slope face shall be delayed until completion of waste <br />operations. <br />9. The finished slope of the disposal terrace shall be no steeper than 3:1 but may be shallower <br />to make the available material come out even, consistent with a naturally appearing <br />contoured surface. <br />lo. Surface moisture, if any occurs, is intended to be retained (and widely disbursed by the flat <br />gradient) on the terrace top for percolation into the soil and plant growth availability. A <br />small permanent earthen berm shall be incorporated at the crest for that purpose. The north- <br />facing disposal terrace slope shall be vegetated immediately upon disposal completion to <br />retard runoff and erosion. A straw bale, fabric silt fence, or combination filtration dam shall <br />be employed and maintained in the drainage at the toe of the terrace slope per the required <br />Storm Water Management Plan. <br />11. Mining shall extend below the sand and gravel deposits to expose the underlying clay, some <br />of which may then be extracted for sale off-site as another "incidental commodity". Runoff <br />and sedimentation are effectively controlled by the relatively flat grading of the pit floor, <br />prevention of runoff outfall from the new bench and establishment of a vegetative ground <br />cover, which aids in moistwe retention, erosion control, and provides ranch activity grazing. <br />Soil samples are being extracted for analysis and recommendations re-vegetation by MRCS. <br />Since it will be graded essentially flat the finished pit flogr has the potential for wide <br />dispersal and absorption of moistwe from meteoric rainfall or runoff from sideslopes. No <br />significant surface ponding is anticipated in the finished pit floor bench. <br />12. Colorado and Federal law requires on-site stored liquid petroleum-based fuels, lubricants, <br />and coolants to be contained by an encloswe with an impermeable liner and capacity for <br />containing at least the fluid stored plus an appropriate reserve. These requirements must be <br />employed at this site in the unlikely event of their storage there. <br />13. All sloped areas disturbed and generated by pit activity, either historic or current, shall be <br />topsoiled to the extent that soil is available on site. Finish graded slopes such as the east end <br />of the south headwall shall be progressively topsoiled directly from currently stripped exc <br />