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is controlled by market demands and corresponding production. Typically, it is between 25,000 <br />and 30,000 tons per blast. <br />16. The Mining Plan calls for stockpiling basalt fines along the quarry edge. Please <br />clarify if this practice will continue once the foot print of the current quarry is expanded. <br />Also, specify which sides of the quarry will have stockpiles, this information is necessary to <br />calculate the financial warranty which includes factors such as haul distance of topsoil. <br />Basalt fines are stored in stockpiles as shown on the revised Map C -3, principally in the <br />processing area. Basalt fines are sold as product. The material stored along the quarry edge is <br />screened topsoil material. <br />17. The Ralston Quarry has several stormwater control structures in place on the <br />southwest side of the quarry and has committed to maintaining them over the life of the <br />mine. Please provide a brief maintenance plan describing how the operator will ensure the <br />stormwater control structures will function as designed. <br />Asphalt Paving Co. maintains the stormwater control structures as part of their Stormwater <br />Management Plan. This includes checking the dimensions of ditches, sumps, and ponds during <br />storm water inspections. The Stormwater Management Plan inspection checklist is attached. <br />6.4.5 Exhibit E — Reclamation Plan <br />18. The Applicant has provided a Weed Management Plan. Please indicate if there are <br />any State - listed noxious weed species present on -site. <br />Russian thistle has been identified on the site, and is being treated. <br />19. The Reclamation Plan calls for backfilling the north platform above the water <br />tunnel with 1,000,000 cubic yards of fill material. Please provide the following information: <br />C) Describe the type of material used for backfilling the northern platform, e.g. <br />blasted basalt, basalt fines, imported fill. <br />Screened topsoil material will be used as backfill in the reclamation plan. The topsoil, as <br />it exists naturally on site, has a significant amount of coarse basalt in it. Asphalt Paving <br />Co. screens this material, thus both acquiring usable rock, but also improving the <br />condition of the topsoil as a growth medium. <br />Co <br />