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E. Sediment Samples and Total Sediment Load. A summary of the suspended load, <br />bed material and bed load samples collected during the 1993 field season is presented in Table <br />6. These samples were collected at cross sections E-4 and E-5 around the spawning bar. The <br />laboratory results are presented in Appendix D and are separated in sections by suspended load, <br />bed material and bed load samples. The suspended load results were not correctly analyzed <br />by the lab and should be ignored. Table 7 summarizes the bed material size distribution. <br />Table 8 presents the bed load size distribution. <br />The bed material samples were collected in April in the approximate location of a <br />recognized razorback sucker spawning area in the right channel (at E-4 and E-5) around the <br />large vegetated bar. The April samples were collected from a cobble bed reach. In June, bed <br />material samples were collected across the entire river in both channels at cross sections E-4 <br />and E-5. Bed material samples were not collected near the left bank of the left channel <br />because the substrate was primarily bedrock. The rest of the left channel and all of the right <br />channel were covered with sand, mostly in dune bed forms. The average DSO size of all the <br />June samples was approximately two orders of magnitude smaller than the April DSO size. <br />A few samples were collected during the August field data at cross sections E-4 and <br />E-5 to compare bed material size with those collected in April. Most of the right channel was <br />still covered with 1' to 2' of sand. This sand was slightly coarser than the June samples <br />indicating that some of the fine sand had been flushed from this reach since peak flow. <br />Conversely, the coarse bed material sample in August was slightly finer than the April sample <br />indicating that more sand was embedded in the cobble interstices. <br />The suspended sediment samples collected at cross sections E-4 and E-5 in June were <br />not analyzed appropriately for sediment concentration or for sediment size distribution. The <br />laboratory erred in drawing off samples from the sediment sample and did analyze any sand <br />size sediment as a result. The results related to suspended sediment in the draft report should <br />be ignored. <br />25 <br />