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<br />EL 6931.0r El. 6931.0:f: <br /> 8 13 <br /> 17 14 <br /> 20 21 <br /> 13 12 <br /> 20 12 <br /> 6 16 <br /> 8 15 <br /> 17 12 <br /> 8 20 <br /> 0 <br /> 20 7 <br /> 50/6" 5/6"-50/4" <br />80H 50.5' 80H 51.0' <br /> <br />6960. <br /> <br />6950 <br /> <br />6940 <br /> <br />6930 <br /> <br />;; 6920 <br /> <br />z <br />o <br />~ <br />w <br />d 6910 <br /> <br />6900 <br /> <br />6890 <br /> <br />6880 <br /> <br />6870 <br /> <br /> <br />Bl0l <br /> <br />Bl02 <br /> <br />B103 <br /> <br />~.i>."., <br />~ <br /> <br />~.' <br />~ <br /> <br />tNil" <br />""-'" <br />.-f~j~i: <br /> <br />~ <br />II <br />E;J <br />EJ <br /> <br />ABBREVIATIONS: <br /> <br />WOH = WEIGHT OF ROD <br />BOH = BOTTOM OF HOLE <br />EL = ELEVATION <br /> <br />LEGEND: <br /> <br />SilTY SAND TO SilTY GRAVELLY SAND - FINE: TO COURSE <br />SAND, MEDIUM DENSITY, APPROX. 10-35% NON-PLASTIC TO <br />SLIGHTLY PLASTIC FINES, APPROX. 5-20% FINE GRAVELS, DRY <br />TO WET, TAN TO BRO~N. (SM, SW-SM) <br />CLAYEY SAND - FINE TO COARSE SAND, LOOSE TO MEDIUM <br />DENSITY, APPROX. 30"":45% MEDIUM PLASTIC FINES, APPROX. <br />0-15% FINE GRAVELS, MOIST TO WET, DARK BROWN TO GRAY. <br />(SC) <br /> <br />SAND AND GRAVELLY SAND - MOSTLY MEDIUM TO COARSE <br />SAND, VERY LOOSE TO MEDIUM DENSITY, APPROx. 5-15% <br />NON-PLASTIC FINES, APPROX. 10-25% FINE TO MEDIUM <br />GRAVEL. MOIST TO WET, GRAY AND BROWN. (SM, SW-SM) <br />CLAYEY SILT - SLIGHT TO MEOlUM PLASTICITY, SOFT, APPROX. <br />15-20% FINE SAND, TRACE ROOTS, MOIST, BROWN. (Ml) <br />BEDROCK - SANDSTONE, HIGHLY WEATHERED, SOFT TO FRIABLE, <br />WET, GRAY-WHITE. <br />INDICATES APPROXIMATE CHANGE IN MATERIAL STRATA. EXACT <br />CHANGE COULD NOT BE DELINEATED. <br />INDICATES CHANGE IN MATERIAL STRATA. <br /> <br />EL. 6897.5:1: <br /> <br />INDICATES NUMBER OF BLOWS OF A 140-LB HAMMER FALLING <br />0-2030 INCHES REQUIRED TO DRIVE A STANDARD SPLIT-SPOON <br />SAMPLER OVER AN INTERVAL OF 12 INCHES, OR OVER THE <br />INTERVAL INDICATED. <br /> <br /> <br /> 4 +-TI <br /> 6 <br />0,22 ~ <br /> '/6"-WOH <br /> 50/6" <br />BOH 15.5' <br /> <br />STANDPIPE OBSERVATION WELL INSTALLED IN BOREHOLE WITH <br />SCREEN'SECTlON AS SHOWN. NUMBER INDICATES DAYS AFTER <br />INSTALLATION WHEN WATER LEYEL WAS READ. <br /> <br />INDICATES WATER LEVEL IN BOREHOLE AT TIME OF DRILLING. <br /> <br />NOTES: <br /> <br />BORINGS WERE DRILLED ON MARCH 16-17, 1999 WITH A 4.25" <br />1.0. HOLLOW STEM AUGER POWERED BY A MOBILE B57 DRILL <br />RIG. <br /> <br />SEE FIGURE 3.6 FOR BORING lOCATIONS. <br /> <br />SUBSURFACE CONDITIONS ARE ONLY KNOWN AT BORING <br />LOCATIONS. SUBSURFACE CONDITIONS MAY BE DIFFERENT TO <br />OTHER LOCATIONS. <br /> <br />... <br />I <br /> <br />w <br />'" <br />::::J <br />'" <br />(;: <br /> <br />",U1 <br /><<'" <br />oS <br />Ww <br />"'", <br />:So <br />m <br />>- <br />zo <br />w w <br />"'(;: <br />::::J::} <br />Z"- <br />0", <br />"'iIi <br /> <br />~I <br />@I <br />ij <br />