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CITY OF SANTA ANA <br />Planning and Building Agency <br />eject : St. Barbara School - Site Improvement Project <br />Borehole <br />4o. B-2 <br />ject Location : 5306 West McFadden Avenue, Santa Ana, California <br />LOG OF TEST HOLE <br />Plate No. <br />1-2 Approv <br />ad <br />jectNumber: D-6289-02 <br />Page 1 of <br />%ftS.UANCE <br />:(s) Drilled : June 12, 2024 <br />Logged By : BA/AB <br />Checked By: <br />XS <br />ng Method: Hollow Stem Auger <br />Drill Bit Size / 8„ Total <br />Depth of <br />21.5 <br />Type: Borehole, <br />feet <br />Rig Type : B-61 <br />Drilling Approx. <br />Contractor.Elevation, Drilling Elevation, <br />Surfa <br />feet. <br />a {� <br />Maf le P 1�t b' <br />indwater Level and Date <br />sured: Groundwater encountered @ 14' <br />Sampling <br />Method : California (ring), bulk, SPT <br />Hammer Data <br />pateq lbs dropping 30 inches <br />hole Backhll : Drill cuttings <br />Comments: Refer to plot plan for location. <br />SAMPLES <br />io <br />3 <br />o <br />` <br />U <br />a <br />M <br />OTHER TESTS <br />n <br />MATERIAL DESCRIPTION <br />m <br />H <br />c <br />, <br />O <br />a <br />AND REMARKS <br />U <br />N <br />V <br />y <br />d <br />a <br />E <br />C .N <br />0 <br />rn <br />2 N <br />w <br />o <br />Z <br />aX <br />(D <br />I on <br />o <br />a.z <br />60 <br />0 <br />Grass <br />Bag #1 <br />Silty Sand ISM), beige, moist, medium dense, gravelly <br />19 <br />HD:81:12:7 (sa:si:cl) <br />2 <br />C-1 <br />9-15-20 <br />35 <br />@ 2': Silly Sand (SM),same as above <br />5 <br />90 <br />55 <br />5 <br />DS: P=Peak / Ult=Ultimate <br />C-2 <br />11-24-20 <br />44 <br />@5':Silly Sand (SM), fine to medium grained, beige, gravelly, <br />5 <br />98 <br />¢ = 330 , c = 300 psf (P) <br />moist, medium dense <br />0 = 320, c = 250 psf (Ult) <br />50 <br />10 <br />C-3 <br />5-12-15 <br />27 <br />11 <br />99 <br />@10':Sand (SP), slightly silty, coarse grained, small pebbles, <br />medium dense, gray, moist <br />Ground Water Encountered @ 14' <br />45 <br />15 <br />— <br />— <br />S-1 <br />11-7-7 <br />14 <br />@10': Same as above, very moist <br />22 <br />40 20 <br />S-2 12-9-10 19 @10': Same as above 23 <br />Total Depth = 21'-6" <br />Groundwater encountered @ 14' <br />3525 Backfilled w/Cuttings <br />No Caving but possible for bigger diameter hole <br />30 1 30 <br />25 1 35 <br />20 1 40 <br />15 1 45 <br />GEOTECHNICAL SOLUTIONS, INC. <br />