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<br />Table 17 assumes> that aU sediment coming in to the
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<br />will deposit and accumulate therein. This assumption is not
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<br />beoause of the following oonditions.
<br />a. Ai\; times when water passes through an ~reservoir the
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<br />8ilt carried in suspension will be oonveyed ,through rather
<br />than dep08ited in the reservoir. Suoh flow of water also
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<br />tendS'to scour out and oarry with it sane of the sediment
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<br />previously deposited.
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<br />b. At times when s11t laden vmter enters the reservoir pool
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<br />while water is also being released. sane of the enterl,ng
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<br />The above faotors (II. and b) will tend to reduoe ,;~1_t~.., the sedimentation: J
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<br />silt will be carried through the reservoir wtthout aeppsition
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<br />rate and oorrespongingly inorease the effeotive storage cap9.oitiOll'ehovm in llable
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<br />17. Quantitative valuee for these raotor~ are dtffioult of determination and. in
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<br />any event)would be quite small compared to the total volUllles involVed'. It is
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<br />therefor proper and conservat ve to ut~liEe the values shown in Table 17 without
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<br />refinement for the effeot&
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