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File No. 20-1008-36 K L E I N F E L D E R <br /> July 14, 1995 <br /> SUACYURY OF DAILY SDRI READINGS <br /> TEST PAD 5 <br /> Elapsed <br /> Time Average <br /> Between Weight Water <br /> Date Reading Change Temperature Permeability <br /> (hours) (grams) (Degrees F) (cm/sec) <br /> 5/10/95 23.5 647.8 66 7.7 x 107' <br /> 5/11/95 24.2 1117.6 66 1.3 x 10' <br /> 5/12/95 23.1 1471.0 66 1.8 x 10- <br /> 5/13/95 26.7 1444.0 63 1.5 x 107 <br /> 5/14/95 20.0 1377.1 60 1.9 x 10, <br /> 5/15/95 25.8 1070.0 60 2.2 x 10' <br /> 5/16/95 24.1 1350.3 64 1.6 x 10' <br /> 5/17/95 24.0 1440.0 69 1.7 x 10-6 <br /> CONCLUSIONS <br /> Based on the results of our laboratory and SDRI permeabilities, the test pads met permeability <br /> and moisture/density specifications. We note that laboratory permeabilities and SDRI <br /> permeabilities had a one to one correlation We recommend that the CQA Plan procedure for <br /> barrier construction is to be used as follows: The barrier layer may be constructed in a single-lift <br /> process provided compaction is performed by a CAT 825C sheepsfoot compactor, or equivalent, <br /> with a minimum of 5 passes to achieve a minimum relative compaction of 92 percent at a <br /> moisture content of at least 2 percent over optimum. It should be noted that in Test Pad 3, a <br /> mixture of 20 percent Ione clay, 80 percent Granite stockpile materials had passing SDRI and <br /> laboratory permeabilities. The Ione clay will be used as an alternative source for the final cover. <br /> GSM.md CH195 Page 9 of 10 July 14, 1995 <br /> 20-1008-36 O 1995,Kleinfelder,Inc. <br />