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Advanced BORING LOG r �a GeoEnvironmental Inc. -- . � BOREHOLE NO MW-19 7 '��f 837 Shaw Road, Stockton, CA 95215 (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 50 FEET Project FLAG CITY CHEVRON Drilling Co CASCADE DRILL Site Location 6421 CAPITOL AVENUE Rig/Auger Type CME-75HT/8-INCH AUGERS LODI Logged By T CUELLAR CALIFORNIA Reviewed By C LEE Project No AGE-NC-96-0232 Date(s) Drilled 14 MAY 2004 Notes Soil continuously sampled between 15 and 50 feet, 4 Water level during drilling Page 1 of 1 Boring dual-completed as monitoring well MW-19 a Water level in completed well Sample Blows PID Sod USCS Class and Well Well Depth ID (per 6" m S mbol Sod Description Completion Description �P } tPP ) Y p A B ® Top Well Cap 0 5' / Cement grout seal _5 r PAR OSft Eft 0 MW 19-5 --- -- NO SAMPLE No soil sample collected Bentonite seal 6ft-8ft –10 MW 19-10 --- --- NO SAMPLE No soil sample collected –15 MW19-15 --- 0 ML (15'-18')Pale brown-gray,very moist,fine sandy #3 sand SILT,60%fines/40%sand,no odor $ft-25 5 ft –20— MW19-20 --- 5 SP-SM (18'-20')Brown,saturated,fine SAND w/fines, 90%sand/l0%fines,no odor Screen interval loft-25ft –25— MW19-25 -- 0 ML-SM (20'-25')Pale brown w/white ppt,black frag, Bottom Well-Ca A very moist,silty fine SAND/fine sandy SILT,50% 25 ft p sand/50%fines,no odor –30 MW19-30 --- 0 ML (25'-36')Brown/gray w/white ppt,black frag,very moist,fine sandy,clayey SILT,70%fines/30%sand, well compacted,no odor Bentonite seal 255ft-43ft –35 MW19-35 --- 0 SM (36'-38')Pale brown/orange-brown,saturated,fine SAND w/silt,80%sand/20%fines,unconsolidated,no odor –40— MW19-40 --- 0 SP (38'-46')Pale brown,saturated,fine SAND,less than 5%fines,unconsolidated,no odor #3 sand 43ft-50ft –45— MW19-45 -- 0 SP Pale brown,saturated,fine SAND,less than 5% fines,unconsolidated,no odor Screen interval 45 ft-50 ft –50— MW19-50 -- 0 SM (46'-50')Pale brown/orange-brown,saturated,silty 50 Bottom Well Cap B fine SAND,70%sand/30%fines,soft,no odor –55—