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File No. 20-1008-49 KLE I N FELDER <br /> December 22, 1994 <br /> Sample Liquid Plasticity % % % <br /> No. Northing Easting Limit Index Sand Silt clay <br /> 4 2600 2550 50 23 10 14 76 <br /> 5 2850 2390 47 24 3 25 72 <br /> 6 2500 2200 44 16 4 16 80 <br /> 7 900 1750 53 20 4 21 75 <br /> 8 2925 1650 54 23 12 18 70 <br /> 9 1000 2525 50 188 2 90 <br /> Premixing of the Ione clay and the upper soil was performed by a large motorized pugill (CMI <br /> RS-500 soil stabilizer). One pass at an approximate 51/2-inch depth was made which appeared <br /> to break up the larger clods well and meet initial breakdown requirements. Final mixing <br /> involved two passes at full depth (approximately 16 to 18 inches) to achieve the required <br /> gradation specifications of 60 percent passing the No. 4 sieve (0.19 inch) and 100 percent <br /> passing the 1-inch sieve. During the final pass water was added to the soil by utilizing a spray <br /> bar attached to the mixer. Samples of the barrier layer materials were then acquired for <br /> compaction curves, Atterberg Limits, gradations, and hydrometer analysis. The barrier layer <br /> soils were classified as clayey sandy silt ( L), clayey silty sand (SC), and sandy clay (CL). <br /> The differing classifications were a result of borrow soil composition. Results of tests for <br /> Atterberg Limits, gradation(including hydrometer), compaction and optimum moisture content <br /> are summarized in Tables IV and VI. Table VI is attached at the end of this report. Test <br /> locations are graphically depicted in Plates 1 and 2. Native and import soil classifications were <br /> used for the foundation and barrier layers, respectively. <br /> TABLE IV <br /> SUMMARY OF FOUNDATION AND BARRIER LAYER CQA TESTING <br /> (ATTERBERG LIMITS AND GRADATION) <br /> Sample Native/ Liquid Plasticity % % % <br /> No. Northing Easting Import Limit Index Sand Silt Clay <br /> 1 1100 1150 N n/a n/a 32 n/a n/a <br /> 2 1 1000 1100 I 13 9 45 35 20 <br /> 3 1160 1175 I 17 9 43 32 25 <br /> 4 1175 1300 N n/a n/a 52 37 11 <br /> 5 1550 1200 N n/a n/a 51 38 11 <br /> 6 1900 1150 N n/a n/a 49 40 11 <br /> 7 1600 1350 I 26 9 34 52 14 <br /> 8 3325 2825 N n/a n/a 67 23 10 <br /> Copyright 1994 Kleinfelder, Inc. Page 5 of 12 <br />