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6.4.4 Exhibit D <br /> Mining Plan <br /> The J&J Stone Pit #1 target sandstone deposit lies within the Travesilla-Rock <br /> outcrop complex in Fremont County, CO, north of Canon City. The Fremont County <br /> Soil Conservation Survey states little to no topsoil, overburden or vegetation is <br /> present in an area where the land is steep and rocky. The target deposit is <br /> approximately 20 feet deep with more sandstone bedrock below the target deposit. <br /> The primary commodity is dimensional landscape sandstone. <br /> The mine operates on an as-needed basis for KrauthCo Inc. landscape projects <br /> and clients. Because the landscape industry is seasonal, the site may operate up to <br /> nine months of the year. When operating, mining may occur Monday thru Friday <br /> from sunrise to sunset. The mine is a low production operation, mining less than <br /> 70,000 tons per year. <br /> With this amendment KrauthCo extends the permit boundary to encompass 115 <br /> acres. Mining will progress through the sandstone outcrops in 15-acre phases. Bond <br /> will be posted by 15-acre phase with each phase evaluated prior to commencement <br /> of mining for vegetation disturbance and potential need to adjust bonding. One <br /> phase, the current phase, is delineated in Exhibit C following the sandstone ridge to <br /> the east. Further phasing is not provided because sandstone character is <br /> inconsistent. Future phases will be presented to the Division in Annual Reports. Each <br /> 15-acre phase has a life expectancy of eight years. The life of the mine is <br /> approximately 40 years. <br /> Mine development will occur as 10 vertical feet with 8 horizontal feet benches <br /> along the reserve outcrop highwall. Progressing from north to south, material will <br /> be removed from the outcrop face, forming a ten foot highwall. At this point an <br /> eight foot bench will be excavated and a subsequent ten foot vertical highwall will be <br /> mined, through the deposit to a depth of 20 feet. The mine will daylight to the south <br /> and west from each sandstone ridge. Mining will not occur within any ravines. <br /> Historic drainage of stormwater flows will be maintained during mining. This will be <br /> a dry mining operation and mining operations will be consistent throughout the life of <br /> the mine. <br /> Using skidsteers and loaders sandstone slabs are lifted from the deposit and <br /> transported to the staging area where the stone is sorted by size and palletized. The <br /> sorted stone is loaded onto trucks or flatbed trailers and hauled to project sites or <br /> KrauthCo Inc.'s equipment storage yard at 1068 Red Canyon Road, Canon City, CO. <br /> In the event topsoil or overburden is encountered, the material will be stockpiled for <br /> use during reclamation. At the end of a phase, prior to reclamation, any stockpiled <br /> rubble may be crushed and sized for resale using a third party crushing company's <br /> portable and temporary equipment. The plant will be set up and operated within the <br /> staging area. <br /> Stormwater BMPs will be constructed and implemented as necessary and directed <br /> in accordance with CO Department of Public Health and Environment's Water Quality <br /> Control Division's stormwater discharge general permit. An armored stormwater <br /> diversion channel will convey surface flow to the south infiltration pond near the <br /> 4 <br />