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7.2.2 Summary of Geotechnical Investigation <br />Table 1 summarizes the proposed field exploration and laboratory testing <br />program at Barnes Meadow Dam. There may be modifications to this program as a <br />result of more detailed data review and observations made during the Task 2 <br />field inspection. Revision must be approved by the Owner and the Colorado <br />Water Conservation Board. <br />TABLE 1 <br />BARNES MEADOWS DAM REHABILITATION <br />SUBSURFACE EXPLORATION PROGRAM <br />140. L.F. <br />DRILLING /SAMPLING �, `t <br />Boreholes7 260 <br />Permeability Tests - <br />SPT -Split Spoon /Calif.:.` 52 - <br />TEST PITS <br />Backhoe Hours 8 - <br />SEISMIC REFRACTION <br />Seismic Lines 6 2,000 <br />LABORATORY TESTING <br />Sieve Analysis <br />10 - <br />Hydrometer Analysis <br />5 - <br />Atterberg Limits <br />10 - <br />Permeability <br />3 - <br />Standard Proctor <br />3 - <br />In Situ Density /Moisture <br />10 - <br />Triaxial Shear (3- Point) <br />4 - <br />Specific Gravity /Absorption <br />1 - <br />L. A. Abrasion <br />1 - <br />Sodium Sulfate Soundness <br />1 - <br />Organic Impurities <br />1 - <br />Clay Lumps /Friable Particles <br />1 - <br />RCC Trial Mix Cylinders <br />3 - <br />Freeze -Thaw Resistance <br />1 - <br />- 10 - <br />