Laserfiche WebLink
All of these tanks are attached to the portable plants themselves. They are all double walled tanks <br />or secondary containment is provided by a steel trough below the tank which can store a volume of <br />at least 110% of the full tank volume. The portable asphalt plant, concrete plant, crusher, screen <br />plant, and wash plant would be located at the pit bottom for the vast majority of the mining <br />operation. These plants would be moved out of the pit if floodwaters rise in the river to a certain <br />level, as part of the staff gage monitoring system. United cannot afford for these plants to be <br />inundated with water; it is in operator's best interest to ensure that these plants are removed before <br />any floodwaters enter the pit. <br />12. Mine Access and Traffic <br />The access to the site is from an unpaved public frontage road from the Mamm Creek exit of <br />Interstate 70. The western end of the frontage road is the Scott Pit property. The total length of <br />frontage road that will be used by United to access the pit is 2.2 miles. CDOT Permit #305272 <br />covers the use of this access for the Scott Pit site. The access is limited to 335 daily trips as defined <br />by CDOT. As a condition of this permit, the access road will be paved from the mine entrance to <br />the edge of the current pavement. This will benefit the operation and surrounding owners in two <br />ways: 1) Road maintenance will be greatly reduced and 2) dust generation from truck traffic will <br />be removed. While the permit will allow up to 335 daily trips, it is anticipated that considerably <br />less trips will be taken on average. The anticipated annual average is likely to be closer to 150 <br />daily trips. <br />The site has a barbed wire fence along the east, south and west boundaries. A gate is located at the <br />point that the access road enters the Scott property. This gate will be improved as part of the mine <br />operation. The gate will be locked during off hours. <br />13. Mine Life <br />The expected mine life can be seen below. It is based on the anticipated average production of <br />200,000 tons per year. If actual production exceeds the average, the total mine life will be reduced. <br />If actual production is less than the average, mine life will be extended. <br />Mine Life <br />Scott Pit March 10 D-12