Laserfiche WebLink
to handle stormwater runoff from only the dump slope area. The top surface of the dump will <br /> drain west towards the processing area sump. Final dump reclamation will only occur at the end <br /> of mining. Final reclaimed dump slopes will feature catch ditches to collect surface flows, <br /> minimize incision, and funnel flows into the dump slope sump. All water collected in the dump <br /> slope sump will penetrate the dry porous surface within 72 hours. <br /> 2. Mining Timetable <br /> Projected average annual production for the Bradford Mesa Quarry is 1,000,000 tons per year. It <br /> is currently estimated that 30-60 million tons of basalt are available to be mined within the <br /> quarry. Mining will be completed based on market conditions;therefore,with an average <br /> estimate of 45 million tons of basalt available mined at a rate of 1,000,000 tons per year, mining <br /> of the Bradford Mesa resource will occur over 45 years and will be projected to be completed by <br /> 2065 with final reclamation to be completed by 2066. <br /> The mining schedule is planned to minimize disturbance by reclaiming mined-out areas as new <br /> mining phases become active.Note: If large contracts are awarded to the site,production could <br /> increase and reduce the life of the pit. On the other hand, if contracts are less than anticipated, <br /> the life of the pit could be extended. <br /> 3. Mine Facilities and Operation <br /> It is extremely unlikely that any toxic or acid-producing materials will be encountered during the <br /> mining operation as the site was historically rangeland with minor more riparian areas near the <br /> Bradford Reservoir. However, in the event that such materials are encountered,they will be <br /> covered with subsoil and topsoil from onsite stockpiles to the same depths outlined in the <br /> reclamation plan and no more mining will occur in the area. <br /> An approximately 30 acre processing area will be located in the central extent of the mesa top to <br /> service the two main mining trends. Aggregate processing equipment is portable and the <br /> processing area may move and follow active mining throughout the site. Portable mining <br /> equipment such as loaders, dozers,trucks and excavators will be serviced on an as-needed basis <br /> onsite. Upon reclamation, all portable equipment will be removed from the site. A summary of <br /> equipment and related tanks that may exist on site at any given time is listed below. <br /> Bradford Mesa Quarry X�.-Cg <br /> August 2019 D-8 <br />