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<br />However, the slurry wall must be properly constructed and the <br />relief wells must be properly deSigned'~itored and <br />maintained. ~ ~~ <br />We understand that the main fo~~~~analYSeS will <br />be to assess the transient aspectp)of the upst?e~~ and <br />downstream boundary conditions ~/the exit gradients and relief <br />wells. That is, the upstream~~d1eion will be that which will <br />simulate the head associated~~~ inflow design flood. The <br />real head is to be calculated o~~nstream portion of the <br />model as opposed to as~ne-head is at land surface. We <br />'h h' \'\-:?:h~d/bl' h h <br />do not agree Wit t is app.ro~c;,l,a~ e leve t at t e present <br />assumption Of~tea~ ~ate~~n~tions at maximum reservoir <br />J level should be adheredj to. V <br />----~------_'i<<!-_beHe e~)so~rdefaflOn-ShoUld be given to th~--- <br />probability ~cons~~ction imperfections in the slurry trench <br />cutoff /0~~~ the efficacy of a slurry trench from <br />the stand~~fssible construction imperfections and <br />asso~a<ed seepag~ profiles are included in the following Part <br />4 of ~~t~l/ <br /> <br />3. consid~t,ks of Seepage at Right Abutment <br /> <br />~ <br /> <br />~ <br /> <br />J <br /> <br />J <br /> <br />J <br /> <br />J <br /> <br />. <br /> <br />J <br /> <br />I <br /> <br />Woodward.Clyde Consultants <br /> <br />:~ ,'( .~'i'::"'! <br />f.~iV.... /_ <br /> <br />indicate incipient piping. However, the analyses also <br />indicated that relief wells can reduce exit gradients to about <br /> <br />0.24 in the vicinity of the termination of the slurry trench. <br /> <br />The Bureau planned termination of the slurry trench is at <br /> <br />about Station 231, where ground surface is about elevation <br /> <br />- 23 - <br /> <br />~ <br />... <br />