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1 <br />~1 <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />and loading for distribution during routine winter maintenance. The <br />chips will be removed to the extent possible and stockpiled for future <br />use as needed by the Operator. The stockpile locations are hest <br />described as "wide spots in the road" so no reshaping or regrading <br />will be necessary, only removal. Large boulders will be placed along <br />the top back side of the stockpile areas to act as a barrier keeping <br />the chips from being accidentally spilled and acting as a "backstop" <br />when being loaded for distribution. As an alternate to this, some <br />stockpiles may be moved to the opposite side oP the roadway. No <br />special safety barrier or drainage treatment is required in these <br />locations. <br />WATER UALITY <br />The plan for maintaining the water quality within the CAP boundary <br />consists primarily oP the construction of a properly sized silt retention facility <br />at M.P. 0.9 Just below the Visual Berm. This site has been Inspected in the <br />field and will require some grading in the farm of fill and shaping, but will <br />require very little in the way of additional surface disturbance. The nature of <br />the existing quarry operation is one where the processing plant and aggregate <br />storage areas act as a very large shallow detention facility Por both <br />stormwater and silt. Currently only a small surface Plow leaves the site along <br />the South side of the Visual Berm. The flow now travels down the uphill :ide <br />of the access road in a relatively low volume as evidenced by the Pact that <br />there is little roadside erosion. A culvert crossing Is proposed to divert this <br />flow into the silt retention facility. <br />The detailed plans for this proposed facility will be developed as a result <br />of a more careful survey of the contributing watershed which is under a <br />dynamic state as a result of the active quarrying operation. The following <br />parameters will be utilized in developing a detailed design. An accurate <br />contributing basin will be defined based on field inspections and survey and a <br />protection of future mining and reclamation activities. The Universal roil <br />Loss Equation (USLE) will be used to estimate volumes and a limestone fine <br />particle size oP 40 microns will be retained. The outlet facility is proposed. to <br />Sz <br /> <br />