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Mr. Sprague <br />Page 3 <br />April 17, 2015 <br />product, it must be removed from the slopes and stockpiled in <br />areas. , <br />11. As required by Rule 6.4.4(e)(i), please provide an estimate of <br />be required for the various phases of the operation. <br />12. Please specify where processing of the sandstone will occur <br />Mining Plan Map. <br />designated product storage <br />periods of time which will <br />identify this area on the <br />13. The Applicant submitted a Stormwater Management Plan Map and Stormwater Management <br />Detail sheet. Please provide the Division with larger (legible) copies of these documents. <br />14. Specify if any new roads will need to be created to accommodate mining of the site. If so, <br />specify the dimensions of the roads to be constructed and identify the road(s) on the Mining <br />Plan Map. <br />15. Specify if the Operator will place any structures on site such as office building/trailer or <br />maintenance shops. If the Operator will construct any permanent (with foundations) <br />structures, then provide the dimensions of the structure and a description of the building <br />materials. In addition, locate all structures on the Mining Plan Map. <br />16. Specify where topsoil will be stockpiled and describe how the stockpile will be stabilized. <br />Stabilization' of stockpiles is best accomplished by revegetation of the stockpiles; stockpiles <br />should be reseeded if they are to be left in place for more than one year. If stabilization of the <br />stockpiles will be accomplished through revegetation, then specify the grass species which <br />will be planted along the with application rate (PLS /acre). I <br />17. The Mining Plan specifies that explosives are being used in the mining operation. The <br />Applicant provided information on blasting associated with the Masonville Div Operation <br />(M- 1985 -099). Please provide updated information for the Sprague Stone Operation.In <br />accordance with rule 6.5(4), the Operator must demonstrate the offsite areas will not be <br />adversely impacted by blasting. The blasting plan shall include the following information: <br />a) Specify frequency of blasting <br />b) Specify the blast pattern <br />c) Provide a cross section of a typical hole profile <br />d) Specify the delay timing , <br />e) Specify the air overpressure <br />f) Specify the peak particle velocity <br />g) Specify the maximum weight of explosives detonated in an 8 millisecond period <br />h) Specify who will conduct blasting <br />i) Specify if a pre -blast survey of all permanent man -made structures with the potential to <br />be impacted by blasting has been conducted <br />