Laserfiche WebLink
3.0 - Best Manalzement Practices for Stormwater Pollution Prevention <br />The only potential pollutant sources would be stormwater and associated <br />sediments from the active mine area and topsoil/temporary material stockpiles. <br />Excavation and haul equipment left onsite will be located (parked) in active areas of the <br />site where ditches, berms, and silt fences will be used as BMPs. These BMPs will be <br />modified as mining activities progress across the site. The primary site BMPs would be <br />the excavated areas and ditch/berm/silt fence combinations which would extend along <br />any roads ditches and across the entire base of the active site/working areas. Ultimate <br />site containment will be in the topographic low area on the east southeast side of the <br />66.80 acre permit area. The low area provides 100% stormwater containment of the site. <br />There are no site outfalls. <br />There are plans to provide for a portable crusher or screening plant and for <br />temporary asphalt operations at this site for the life of the mine as necessary. All material <br />will be handled onsite using dragline, bulldozers and front-end loaders to temporarily <br />stockpile and load to the relevant process equipment. Process/asphalt equipment will be <br />mobile and sufficiently bermed when onsite. Material stockpiles may be produced and <br />reduced on a daily basis or for longer term stockpiling and will be conveniently located <br />adjacent to active mine pit areas as excavation activities progress or lower along the haul <br />road. No refuse and acid forming or toxic materials will be involved in this operation. <br />The operation will be a dry pit operation producing sand, gravel, and soil materials with <br />no chemicals required for processing and refuse will not be generated. Sand and gravel <br />are basically inert materials. Only by direct precipitation will stormwater enter the site. <br />CDPHE Stormwater Permit requires 100% site containment.