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C) <br /> RPM,Inc.,25049 E.Alder Dr.,Aurora,CO 80016 Phone:(303)854-7499 Email:hi humphries2@comcast.net <br /> structures to include sufficient information to evaluate structure <br /> sizing: <br /> As to pit access,please see Section 6.3.3(1)(e) above. <br /> No runoff or conveyance structures are planned. <br /> Two established roadways will be maintained for site access. They will <br /> conform to the Weld County standards. <br /> The only internal road will be access to the current excavations and to the <br /> PGM stockpile. <br /> The PGM access road will be bladed in, with the PGM pushed to the upper <br /> side of the road where the road is constructed across a slope. Otherwise,the <br /> PGM will be bladed to one side. <br /> The road will be of soil/dirt/millings, approximately 15 to 20 feet wide to <br /> accommodate scrapers and other types of earthmoving equipment. <br /> Except for one internal mine road which will connect both sides of the pit, all <br /> other internal mine roads will be removed. This road is being left for use by <br /> the property owner once mining and site reclamation are complete. <br /> (h) Specify the amount of water (which) will be used in conjunction with <br /> the operation, and the source of the water: <br /> The only water needed for the borrow pit operation is road watering for <br /> fugitive dust control. A typical gravel mining operation may be expected to <br /> use about 1.3 acre-feet of water per year for dust control. The borrow <br /> operation should not exceed 18 months of operation. Therefore, <br /> approximately two acre-feet of water should be sufficient for dust control. <br /> There will be no other uses of water at the borrow site. <br /> Water for the project will be purchased locally from Johnstown. <br /> Potable water will be hauled to the site. <br /> (i) If Ground water will be encountered and/or surface water intercepted <br /> or disturbed, describe how mining will affect the quantity and quality of <br /> the surface or ground water and the methods to be used to minimize <br /> disturbance to the surface and ground water systems including proposed <br /> dewatering, sediment-containment or chemical treatment systems, storm <br /> water run-off controls, and ground water points of compliance: <br /> Neither ground nor surface water will be intercepted or disturbed by the <br /> proposed borrow pit mining and reclamation activities. <br /> 49 <br />