Laserfiche WebLink
• Runoff Volume. V <br />The runoff volume is calculated by the SEDCAD computer model during the hydrologic modeling <br />routine. <br />Peak Discharge, Oo <br />The peak discharge is calculated by the SEDCAD computer model dutmg the hydrologic modeling <br />routine. <br />Soil Erodability Factor, K <br />The K factor for the site was obtained From previously submitted and approved calculations found in <br />this Exhibit. <br />Representative Slone Length. SL <br />The slope length is representative of the typical slope length found on the sub-watershed. It is the <br />distance from the point of origin of overland Elow to the point where the slope decreases such that <br />significant deposition occurs or the flow enters a defined channel. Slope lengths were measured from <br />1" = 100', ]0' contour maps. The calculated values for each structure are shown on the SEDCAD <br />printouts. <br />Average Slope <br />The average slope is entered as a percent and is the representative slope for overland flow for each <br />sub-watershed. The average slope was measured directly from 1" = 100', 10' contour maps. The <br />calculated values for each structure ate shown on the SEDCAD printouts. <br />Control Practice Factor, CP <br />The control practice Factor is defined as the ratio of sediment loss from an area with a given cover and <br />conservation practice to that of a field in continuous fallow. The Following values were utilized: <br />• Area Condition CP <br />Disturbed Rough, irregular, 0.9 <br />Undisturbed 50 io canopy, 2-m canoe}' 60% ground cover 0.038 <br />Slope Stabilization Rough & taclafier (.66x.8) 0.53 <br />