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;~ <br />PRODUCTION PHASE <br />,~ ~c <br />The production phase of the proposed action consists of the activities necessary to remove <br />gravel, prepare and stockpile the mined material, and then remove the material from the site (See <br />Figure 2.3. at the end of this report). This would include the following activities: <br />A large bulldozer would be used to push gravel down from the top of the existing <br />cut slopes. The gravel will spill down the existing steep cut slope onto the flat area <br />at the toe of the slope. Mining will progress from the northern boundary of the <br />site to the south. <br />2. A front-end loader would be used to move the gravel to a stockpile, a screening <br />plant, or directly to a truck for removal from the site. <br />A portion of the mined material would need to be screened to separate large rocks <br />and insure the consistency of the material. The screening plant would consist of a <br />two-deck screen with a grizzly on tip. A grizzly is a metal grid placed over the <br />hopper on the plant and used to separate the largest stones before they enter the <br />screening plant. A modem screening plant with the necessary safety and dust <br />control features would be used. Water for dust control would be trucked from a <br />central water system located in Divide. <br />4. If the materials removed from the site are too hard or too big to be screened, it <br />may be necessary to use a crusher. <br />5. Gravel would be removed from the site in 14 to 25 ton (approximately 9 to 17 <br />cubic yard capacity_ dump trucks. Assuming an average production rate of up to <br />100,000 tons per year, there would be an average of 22 trucks per day. The <br />intensity of operations would be seasonal with larger production rates taking place <br />during the summer construction season and scaled back operations during the <br />winter, depending upon weather conditions. <br />6. The quarry would operate between the hours ofT,00 a.m. to 4:00 p.m., Monday <br />thru Friday. It is anticipated that an average of two full-time employees would be <br />required to operate the site, with one or two additional employees occasionally <br />required for peak production periods associated with special projects. <br />prodphse.00 <br />