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B77@52’ Reddish brown sandy SILT 123 12
T3@1.5' Brown clayey silty f-med. SAND 126 9.5
TP168@3.5-5.5’ Brown sandy CLAY 115 14
B1(1995)@15' Gray silty SAND w/ gravel 133 7
B1(1995)@35' Lt gray silty med-cs SAND 131 9
B1(1995)@72' Lt. gray clayey silty SAND 125 10
B11(1995)@40' Lt. gray clayey SAND 130 10

Atterberg Limits and Particle Size Analyses

Selected fine-grained samples were subject to particle-size analyses (ASTM D

422), hydrometer analyses, and Atterberg Limit testing (ASTM D 4318). The results of

this testing is presented in the following table. Particle size analyses are presented on

Plate PS.1-PS.3 of.

Plastic Plasticity % Clay (finer than
Sample Liquid Limit Limit Index 0.005 mm)
B5@12' (TQs) 36.9% 18.9% 18 19%
B5@72' (Tmc) 40% 20.7% 20 9%
B13@27' (Tmc) 38.4% 17.4% 21 25%
B16@60' (TQs) 42.7% 15.9% 27 ---
B16@63' (TQs) 57.5% 18.2% 40 ---
B16@80' (TQs) 91.9% 32.2% 60 90%
B21@49' (TQs) 57.9% 18.2% 40 50%
B23@70' (TQs) 84.3% 27.3% 57 86%
B25@53' (TQs) 46.7% 19.2% 28 12%
B40@55’ (Tmc) 36.3% 18.3% 18 54.2%
B48@97’ (TQs) 63.9% 19.6% 45 ---
B48@120’ (TQs) 71% 21.3% 50 ---
B54@56.5’ (TQs) 65.7% 17.9% 48 ---

Sand Equivalent

Selected samples were submitted for Sand Equivalent testing in accordance with

California Test Method 217. The results of this testing is presented in the following

table:

Sample Material Sand Equivalent

B77@15’ TQs-silty sand w/clay 17
B77@52’ TQs-silty sand 23

A-556