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r~ <br />~~ <br /> <br /> <br /> <br /> <br />t ~~ <br />r <br />r <br />39 <br />Sediment delivery from a disttffbed site to a stream charmel is influenced to <br />varying degrees by the following factors (Foster and Meyer 1977, Meagahan 1974, <br />ia~ortant in given situations.): <br />Resifro 1975) . (mere may be other factors, not listed here, that are also <br />1. serL~*+* source <br />2. amamt of sPdi~*+* <br />3. proximity of ~+~~ saume <br />4. trarLport agents <br />5. textirr+e of eroded material <br />6. depositicm areas <br />7. watur~r,cri topogmpy~ <br />Sed]lOE~SIt rat171g CUrVES Can al cn be used to estimate s imA*+~ dellVery. In <br />other words, field ~~~~~+*= of stream flow and swperded sed;nw„t <br />concentrations are used to develop a ~;,,,P.,r rating curve. Estimation of <br />alternatives imor+t control mawaiw efficiency has been based On er+~;;morit ra}iM <br />curves by corxurxent water sampling above and below the land use activity to <br />rn,a.,r;fy ~;~r* detention or retention by changes in suspended sedimem <br />ocmcentrations. Mazur Draw is enr,~w,:,i and its suspended ~;,,w„r load wi11 <br />reflect the more significar-t impacts of cattle grazing and soil dia - ' °---° <br />associated with oil production. bus, ~+,~*+~~ ~i~*+t oonoentrations cannot <br />be used effectively to a~ce~a an alternative ~_ ~~*+* control strategy. <br />