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b. Culverts YB-4, 5, and 6 have been enlarged due to the revised routing used in the mining area. 44. The runoff from the two drainages local:ed between Culverts YA- 3 and YA-4 will be diverted away from the road fill. Riprap will be placed at the base of both fill area slopes to divert the water to Culvert YA-3. These two drainage areas were included in the SEDCAD+ calculations for the sizing of Culvert YA-3, which will handle any flows from these drainages. 45. SCC has included in the narrative, a description of the intersection occurring between a "dirt: road" and the proposed Road A at Station 74+25. This "dirt road" and others are similar to the County roads in the area. Approaches similar to those alornl the tie-across haul road will be constructed on the fill slopes of Road A and stop :signs will be placed on both sides of the haul road. Access will be maintained for those people who utilize the "dirt road". 46. Exhibit 13-10.6 has been revised so that it does coincide with Exhibit 13-11.1. One error was that the elevations were incorrect on the profile portion of the map. You should now be able to match up the profile of Exhibit 13-10.6 with both Exhibit 13-10.5 and 13-11.1. Also, the end of Road A on the profile was riot located properly. It has been moved to the correct location. Station 161+03.17 on Exhibit 13-10.6 should • be matched with Station 0+00 on Exhibit 13-11.1. 47. The landslide/mud flow area as depicted by CDMG, has not been field verified at this time and, therefore, the stability question cannot be assessed. In the interest of permit submittal, the monitoring road has been removed from the map. Mining is not: being requested in the area of the CDMG noted slide location and, therefore, should not present any problems. 48. Northwest Colorado Consultants (NWCC) were retained to conduct a geotechnic~il investigation of both the proposed haul road and the main. sediment pond (Pond 010).' This information gathered was primarily intended for SCC design use. It was submitted to the Division to comply with Regulation No. 4.03.1(1)(3) and to provide information to the Division regarding they sections pertaining to cut and fill slopes. The geotechnical report is presented according to the standard of practice. The data, material properties, and analysis appear to be correct. The geotechnical field investigations and soil laboratory tests were conducted to provide SCC with adequate so:Ll characterization to verify the proposed structures could be constructed with adequate safety factors and would bra stable. The results: of this geotechnical investigation show this is the case. • l0