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drainages. The data collected during the field trip included <br />• measurements of channel slope, valley sideslope, and channel geometry. <br />Estimates of channel roughness and vegetative cover were determined <br />and samples of channel sediment collected. The sediment samples were <br />collected from six reclaimed channel locations and two natural channel <br />locations. A wet sieve analysis of all samples was conducted and a <br />hydrometer analysis performed For one sample obtained from the <br />reclaimed and natural channels. The results are presented on Figure <br />3.1. <br />3.2. Hydrology and Hydraulic calculations <br />Prior to analyzing the hydrology and hydraulic parameters <br />associated with the reclaimed channels, the drainage basins for the <br />• existing and approved conditions were identified and delineated. <br />Table 3.1 presents the drainage channels identified following the <br />field trip and the review of existing and approved post-mining <br />topographic mapping. Maps 2 and 3 provide the drainage basin <br />delineations and location and limits of each channel. The description <br />of each channel provided in Table 3.1 is intended to assist in <br />locating the channels on Maps 2 and 3 and promote the comparison of <br />similar channels during this analysis. Following drainage basin <br />delineation and the determination of channel lengths, basin areas and <br />channel slopes were obtained. Channel profiles were developed for <br />comparing approved and existing conditions and are presented in the <br />appendix to this report. <br />C <br />29 <br />