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CITY OF SANTA ANA <br />Planning and Building Agency <br />Project: St Barbara School - Site Improvement Project <br />Borehole <br />No. B-1 <br />Project Location : 5306 West McFadden Avenue, Santa Ana, California <br />LOG OF TEST HOLE <br />Plate No. <br />I-1 Appro <br />Project Number: D-6289-02 <br />Page 1 of <br />Date(s) Drilled: June 12, 2024 <br />Logged By: BA/AB Checked <br />By: <br />DXS <br />Drilling Method: Hollow Stem Auger <br />Drill Bit Size / 6„ Total <br />Depth of <br />16.5 <br />Type: Borehole, <br />feel <br />Drill Rig Type: B-61 <br />Drilling Larry Drilling Approx. <br />Suda <br />Ma�2e�ei�>_ <br />Contractor: Elevation, <br />feel <br />Groundwater Level and Date Groundwater <br />Sampling <br />atl%lbs <br />encountered 14' <br />Measured: <br />California (ring), bulk, SPT Hammer <br />Method : ( g)� <br />Data <br />dropping 30 inches <br />Borehole Backfill : Drill cuttings <br />Comments: Refer to plot plan for location. <br />SAMPLES <br />io <br />o <br />t <br />OTHER TESTS <br />d <br />m <br />MATERIAL DESCRIPTION <br />m <br />y v <br />w <br />g <br />0 <br />a n <br />AND REMARKS <br />4 <br />.> <br />d <br />N <br />U <br />C <br />C <br />.J <br />n <br />n <br />L <br />E <br />W h <br />c <br />d <br />3 <br />y <br />= <br />U N <br />w <br />0 <br />H <br />I z' <br />I a-(If0 <br />m <br />21 <br />01 <br />az <br />60 <br />0 <br />Grass <br />Silty SAND (SM), gray, slightly moist, fine to medium <br />Bag #1 <br />27 <br />HD:73(SA):20 (SI):7 (CL) <br />2 <br />DS: P=Peak I Ult=Ultimate <br />C-1 <br />14-16-16 <br />32 <br />3 <br />86 <br />= 34u , c = 300 psf (P) <br />@2': SAND (SP), silty, beige color, slightly moist, medium dense <br />= 330, c = 150 psf (Ult) <br />555 <br />C-2 <br />6-16-20 <br />36 <br />@5':Sand (SP), fine grained, light gray, moist, medium dense <br />5 <br />89 <br />50 <br />10 <br />@10':Silty Sand (SM), light brown, moist, medium dense <br />C-3 <br />3-6-7 <br />13 <br />13 <br />84 <br />Ground Water Encountered @ 14' <br />— <br />45 <br />15 <br />S-1 <br />2-2-5 <br />7 <br />@15': Same as above, loose <br />10 <br />40 <br />20 <br />Total Depth = 16'-6" <br />Groundwater encountered at 14' <br />No Caving but possible for bigger diameter hole <br />35 <br />25 <br />30 <br />30 <br />25 <br />35 <br />20 <br />40 <br />15 <br />45 <br />GEOTECHNICAL SOLUTIONS, INC. <br />-ad <br />-3UANCE <br />