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<br /> <br /> <br />TEST PIT LOG 1-TP4 <br />Latitude: 37.67857 Longitude: -121.85584 <br />Arroyo Lago <br />Pleasanton, CA <br />9785.004.001 <br />Logged By: N. Inserra <br />Logged Date: November 17, 2022 <br />Equipment: CASE 580N Backhoe <br />Depth <br />(Feet) Description Depth of Test <br />(Feet) <br />Plasticity <br />Index <br />Fines Content <br />(% passing <br />#200 sieve) <br />Moisture <br />Content <br />(% dry weight) <br /> <br />0 – 1 <br /> <br /> <br /> <br />1 – 3½ <br /> <br /> <br /> <br />3½ – 5½ <br /> <br /> <br /> <br />5½–10½ <br /> <br />SANDY LEAN CLAY (CL), light brown, moist, soft, trace <br />fine gravel [Fill] <br /> <br /> <br />GRAVELLY LEAN CLAY (CL), brown, moist, coarse <br />angular gravel [Fill] <br /> <br /> <br />SANDY LEAN CLAY (CH), dark brownish gray, moist, <br />stiff, contains 5 – 10% fine subangular gravel [Fill] <br /> <br /> <br />Becomes dark brown to dark grayish brown, decreased <br />gravel content <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />End of test pit at approximately 10½ feet below ground <br />surface. No groundwater encountered. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />4½ <br /> <br /> <br /> <br />7 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />26 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />11.3 <br /> <br /> <br /> <br />13.9 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />