Laserfiche WebLink
The floor of the trench drain will slope to a sump located at the west end of the drain to allow <br />accumulated fluids to be easily pumped from the trench drain for recycling or disposal. <br />Diethylene Glycol Containment <br />A permanent system for the containment of diethylene glycol has been developed. Diethylene <br />glycol will continue to be stored in two double - walled polyethylene tanks (a 9,000 gallon tank <br />and a 3,000 gallon tank) located west of the loadout building as shown on Drawing 1 in <br />Appendix A. The double - walled tanks provide primary and secondary containment. For <br />protection from possible vandalism, the tanks will be housed in a metal shed style building with <br />a concrete floor. The building details are shown on Drawing 2 in Appendix A. <br />As shown on Drawing 2, the minimum dimension of the concrete slab on which the metal shed <br />will be placed is 30ft. x 18ft. If needed, the size of the concrete slab may be increased two feet in <br />either direction to accommodate a standard metal shed to be provided by the construction <br />contractor. The details call for a minimum two feet clearance between the roof of the shed and <br />the top of the storage tanks. The details also call for two doors with minimum openings of <br />12.5ft. x 15ft. to be placed on the north side of the building for access to the storage tanks.. <br />To protect the building from moving vehicles, bollards will be placed along the west and north <br />sides of the building. The bollards will be 6 -inch cast iron pipe filled with concrete and set in the <br />ground with concrete. A section of a bollard is shown on Drawing 2.' <br />Access Road Sediment Control <br />Stormwater runoff from the access road to the loadout facility drains to a ditch along the north side <br />of the access road and enters a storm drain inlet located adjacent to Highway 133. (See Drawing 1 <br />in Appendix A.) Sediment entering the storm drain inlet will be controlled through the design <br />improvements discussed above and through the use of best management practices. <br />West Elk Mine Train Loadout Environmental Improvements <br />pAl 1- 407\repo tVcport.doc 7 <br />Shepherd Miller, Inc <br />July 1997 (Revised April 1998) <br />