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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. 148 BORING <br />GW DEPTH (FT) LOGGED <br />DRIVE WT. 140lbs NOTE <br />DROP 30 in. <br />DESIG. B-7 <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 />5" Asphalt over no base. <br />SM <br />YOUNGER FAN DEPOSITS(Qyf): SILTY SAND, fine to medium <br />grained, brown, moist, medium dense, few clay. <br />145 <br />6 <br />@2.5ft.loose <br />24.1 <br />94 <br />85 <br />R <br />5 <br />8 <br />@5.0ft. few clay. <br />8.5 <br />110 <br />45 <br />R <br />140 <br />10 <br />g <br />10.1 <br />97 <br />38 <br />R <br />135 <br />15 <br />15 <br />@15.0ft. medium dense. <br />12.1 <br />115 <br />73 <br />R <br />130 <br />20 <br />12 <br />9.0 <br />103 <br />39 <br />R <br />125 <br />25 <br />18 <br />@25.0ft. trace fine to coarse gravel <1.5". <br />11.6 <br />111 <br />63 <br />R <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 — 863 <br />P.N. 1-0396 10/3/2023PLATE B-7 <br />S: SHEAR RS: RUPTURE SURFACE <br />S <br />