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Advanced BORING LOG <br /> ' GeoEnvironmental, Inc. BOREHOLE NO MW-S <br /> -� 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 165 FT. <br /> Project RAINWATER CAR WASH Drilling Co CASCADE DRILLING,INC <br /> Site Location 420 WEST YOSEMITE AVENUE Rig/Auger Type B-95/8-INCH H S <br /> ' MANTECA Logged By T CUELLAR <br /> CALIFORNIA <br /> Reviewed By C LEE <br /> ' Project No AGE-NC-97-0333 <br /> Date(s) Dulled 09-26-02 <br /> Notes MW-8 terminated at 165 ft,soil samples observed everyft, g Water level during drilling Page 1 of 4 <br /> ' MW-8 completed as multi-level ground water monitoring well Y Water level in completed well <br /> Depth Sample Blows PID Sod USCS Class and Well Well <br /> ' ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> I o <br /> Well cover,water <br /> tight,locking cap <br /> ' _5 Soil samples not collected <br /> ' -10 Soil samples not collected <br /> I <br /> -15 — — SP-SM Pale brown,damp,dense,fine SAND with som <br /> ' <br /> MWS-15 18/20/29 — — _ e silt,unconsolidated,about 90%sand&10%fines Cement grout seal from <br /> 1 to25ft <br /> ' _- = SP-SM Brown,moist,dense,fine SAND with some silt <br /> MW8-20 40/50 about 90%sand&10%fines <br /> Bentonite seal from 20 <br /> to 23 ft. <br /> i <br /> _ <br /> 25 SM Gray/brown,moist,very dense,silty,fine SAND,a <br /> MWS-25 27/50 — — bout 80%sand&20%fines 43 sand from 23 to 35 <br /> 5f <br /> I <br /> -30— SW Pale brown/gay,saturated,fine to coarse SAND w <br /> MW8-30 23/50 ith some gavel,unconsolidated,no fines Screened interval from <br /> ' 25 to35ft <br /> - <br /> 35— SW Pale brown/gray,saturated,fine to coarse SAND w <br /> ' MW8-35 12/26/41 ith some gravel,unconsolidated,no fines <br /> Start continuous-core w/5-foot macro-core barrel <br /> _ <br /> 40 -T _ SP Gray,saturated,fine to medium SAND,unconsolid <br /> MW8-40 ated,no fines <br /> ' SP Cray,saturated,fine to medium SAND,unconsohd <br /> -45 MW8A5 <br />