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LEGEND: <br />,r TOPSOIL, CLAY, VERY SANDY, <br />N ORGANICS. DARK BROWN TO BLACK <br />©CLAY, SANDY, GRAVELLY, MEDIUM <br />STIFF TO STIFF, MOIST TO WET, <br />BROWN, RUST-BROWN (CL) <br />® BEDROCK SANDSTONE, SILTY, CLAYEY <br />VERY HARD, SLIGHTLY MOIST, BROWN, <br />RUST-BROWN <br />~ BEDROCK COAL OR HIGHLY CARBONACEOUS <br />SHALE, SOFT, HARD, BLACK <br />SAND, SILTY TO CLAYEY, LOOSE TO (_ DRIVE SAMPLE. THE SYMBOL 14/12 <br />MEDIUM DENSE, DRY TO SLIGHTLY MOIST, P II~ICATES THAT 14 BLOWS OF A 140 <br />BROWN, RUST-BROWN (SM, SC) POUND HAMMER FALLING 30 INCHES WERE <br />REQUIRED TO DRIVE A 2.5-INCH O.D. <br />SAMPLER 12 INCHES. <br />u <br />®WEATHERED BEDROCK, CLAYSTONE, <br />SILTSTONE, SANDSTONE, MEDIUM <br />HARD, SLIGHTLY MOIST. BROWN, <br />RUST-BROWN, GRAY <br />BEDROCK CLAYSTONE/SILTSTOfJE, <br />VERY HARD, SLIGHTLY MOIST, GRAY <br />BROWN <br />NOTES: <br />F DRIVE SAMPLE. THE SYMBOL 50/2 <br />INDICATES THAT 50 BLOWS OF A 140 <br />POUND HAMMER FALLING 30 INCHES WERE <br />REQUIRED TO DRIVE A 2.0-INCH 0.0. <br />SAMPLER 2 INCHES. <br />SHELBY TUBE SAMPLE. A 3.0-INCH <br />THIN WALLED SHELBY TUBE PUSHED <br />INTO STRATA. <br />-_ INDICATES FREE WATER LEVEL <br />AT THE TIME OF DRILLING. <br />1. THE BORINGS WERE DRILLED OCTOBER 31, 1989 AND NOVEMBER 2, 1989 WITH A <br />4-IfJCH DIAMETER CONTINUOUS FLIGHT POWER AUGER. <br /> <br />2. BORING ELEVATIONS WERE ESTIMATED FROM SHEET 1 (FIG. 1). <br />3. THESE LOGS ARE SUBJECT TO THE EXPLANATIONS, LIMITATIONS AND CONCLUSIONS <br />AS CONTAINED IN 7HI5 REPOR7. <br />4. ~9C-INDICATES NATURAL MOISTURE CONTENT (%) <br />DD-INDICATES DRY DENSITY (PCF) <br />-200-INDICATES PERCENT PASSING THE N0. 200 ~S IEVE <br />LL-INDICATES LIQUID LIMIT (%) <br />PI-INDICATES PLASTICITY INDEX (%) <br />UC-INDICATES UNCONFINED COMPRESSIVE STRENGTH (PSF) <br />JOB N0. 16,516 <br />FIG. A-3 <br />