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• <br />equal to or greater than 1.0. Therefore, the substantive increase in the cohesion to 2055 psf <br />compensates for the slight decrease in the angle of internal friction resulting in a factor of safety <br />that exceeds the criterion of 1.0 for pseudo-static conditions. <br />Our exploration for and testing of this material was expedited to generate the basis for this <br />request. It would be greatly appreciated if your approval could be given within the next few <br />days. It would appear that because the material meets the critical specifications of permeability <br />and interface shear strength, that no issues should arise. However, CC&V would appreciate <br />OMLR confirmation that all testing results demonstrate acceptability as soon as possible. This <br />approval will afford timely opportunity to complete the clay processing essentially on schedule <br />and to thereby complete construction in a timely and efficient manner. <br />A revised page of the Technical Specifications is also included as Attachment F to Attachment <br />1 (2 pages) to this letter. The specifications added to account for this matrix call for this <br />material to be placed with a water content of between 3 percent dry of optimum to optimum, <br />the same as the "Area 2" material. A check in the amount of $875 is enclosed as Attachment <br />2. <br />Thank you for your assistance. <br />Hardaway - <br />Environmental Affairs <br />Attachments (2): 1. Letter from Golder Associates "Classification and Permeability Test <br />Results For 1996 Clay Area Soil Liner Fill Samples" dated April 29, <br />1996. <br />2. Check for Technical Revision in the amount of $875. <br />FILE: CCRVSTIP.006 <br />3 <br />