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<br /> <br />t two areas can be corrected by far easier and more visually acceptable <br />means than by turning the site into a major highway construe;ion <br />protect. <br />' ITEM N0. 18 RESPONSE: The Operator commits to reshaping the slope at <br />Area 4 to 2:1 as shown on the referenced section. The section has been <br />revised to clarify the limits of the disturbance. The lower limit of the <br />' disturbance terminates a substantial distance above the thread oP the <br />stream. This has been confirmed by field inspection. The limits that were <br />originally represented extended to field stations that were actually thread <br />' of stream locations as indicated In the ITEM NO. 13 RESPONSE. <br />The "Approximate Pre-Disturbance Ground" (a short dashed line! as <br />shown on the CAP cross-section of Area 4 has been removed below the <br />' limit oP disturbance to avoid confusion. The field elevations obtained by <br />actual field survey remain as originally presented. The initial intent of <br />showing both lines was to demonstrate the reliability of the topographic <br />' mapping being used for the base maps. This accuracy was confirmed to be <br />within the standards of mapping tolerances. As an actual matter, the <br />regrading and reshaping oP Area 4 will be limited to only those areas <br />where fill material is encountered. The Operator commits to these linnits <br />with the resultant slope not exceeding 2:1. <br />ITEM NO. 19 RESPONSE: The only portion of the Snyder Tributary where <br />encroachments into the natural stream thread occurs is at the bases of <br />Area No. 1. See ITEM N0. 13 RESPONSE and revised CAP far discuse:ion <br />of Areas 2, 3 and 4 and treatment of the stream thread at Area No. 1. <br />with regard to allowing runoff to pass quickly through an area, this <br />occurs naturally with the overall stream gradient through this segment in <br />excess of 12.5%. The resultant stormwater flow is super-critical and the <br />stream bed has for the most part experienced significant erosion to <br />sandstone. Erosion that continues to occur is from the steep natural ride <br />slopes of the canyon. Infiltration is insignificant due to the sandstone bed <br />and high runoff velocities. <br />C. VEGETATIVE ESTABLISHMENT <br />ITEM NO. 20 RESPONSE: Unlike the Williams Canyon situation where the <br />original tree density was quite different from the surrounding areas, we <br />agree to establish a tree density along the road that is equal to the <br />' surrounding areas. Our information suggests the pre-road forest along the <br />road area was reasonably uniform and therefore the application of this <br />standard would be fair and appropriate. We also agree to the five year <br />term for establishment, although, once again, we do not believe the <br />difference between determining establishment after three years would be <br />statistically different from the five year term. <br />s <br /> <br />