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GEOTECHNICAL BORING LOG <br />SHEET 1 OF 1 <br />PROJECT NO. <br />DATE STARTED <br />DATE FINISHED <br />DRILLER <br />TYPE OF DRILL RIG <br />1-0396 <br />7/7/21 <br />7/7/21 <br />2R Drilling Inc. <br />8" Hollow Stem Auger <br />PROJECT NAME 4th St. and Cabrilla Park Dr. <br />GROUND ELEV. 141 BORING <br />GW DEPTH (FT) LOGGED <br />DRIVE WT. 140lbs NOTE <br />DROP 30 in. <br />DESIG. B-2 <br />BY FIR <br />w <br />�a <br />} <br />OJ <br />�m <br />w. <br />� <br />a� <br />�0 <br />w <br />w� <br />2r <br />o <br />o <br />GEOTECHNICAL DESCRIPTION <br />;z <br />z <br />o <br />�Qo <br />w <br />a— <br />w <br />« <br />� <br />m <br />= <br />H <br />�� <br />U) <br />Qp <br />Ofw <br />o <br />o <br />J <br />20 <br />MIL <br />4" Asphalt over no base. <br />YOUNGER FAN DEPOSITS(Qyf): CLAYEY SILT w/SAND, brown, <br />140 <br />B <br />moist, firm, fine to medium grained sand <br />MAX, <br />El, <br />HY, <br />CHEM <br />5 <br />21 <br />SM <br />@5.0ft. SILTY SAND, fine to medium grained, moist, medium dense <br />10.1 <br />108 <br />51 <br />R <br />135 <br />trace roots. <br />10 <br />22 <br />@10.0ft. few fine to coarse gravel <1 ". <br />2.4 <br />R <br />130 <br />15 <br />19 <br />8.3 <br />110 <br />44 <br />R <br />125 <br />20 <br />14 <br />8.8 <br />104 <br />40 <br />R <br />120 <br />25 <br />24 <br />12.7 <br />110 <br />66 <br />R <br />115 <br />TOTAL DEPTH 26.0 FEET <br />NO GROUNDWATER ENCOUNTERED <br />NO CAVING OBSERVED <br />SAMPLE TYPES: <br />1 GROUNDWATER <br />® RING (DRIVE) SAMPLE <br />► SEEPAGE <br />4i <br />Alta California Geotechnical, Inc. <br />D s <br />I nc' <br />FBIBU TUBE SAMPLE <br />: BEDDING F: FAULT 18 — 858 <br />P.N. 1-0396 10/3/2023PLATE B-2 <br />S: SHEAR RS: RUPTURE SURFACE <br />S <br />