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1 <br /> Advanced BORING LOG <br /> GeoEnvironmen#al inc. <br /> BOREHOLE NO MW-8 <br /> 837 Shaw Road, Stockton, CA 95215 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 165 FT. <br /> 1 Protect RAINWATER CAR WASH Date(s) Drliled 09-26-02 <br /> ' Protect No AGE-NC-97-0333 Page 2 of 4 <br /> Depth Sample Blows PID Soil USCS Class and Well Well <br /> ' ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> ' <br /> -so—� SM Gray,saturated,silty,fine to medium SAND,abou <br /> MW8-50 — — t 80%sand&%20 fines Bentonite seal from 35 <br /> ' Sto58ft. <br /> -511ML Gray/brown,moist,fine sandy SILT,about 60%fi <br /> ' MW8-55 - nes and 40%sand,partly cemented <br /> 60 MW8-60 - = SP-SM Gray,saturated,silty,fine SAND,about 90%s <br /> and&%10 fines #3 sand from 58 to 65 <br /> 5 f <br /> ' Screened interval from <br /> 65 ML Gray,moist,fine sandy SILT,about 70%fines&3 60 to 65 ft <br /> MW8-65 0%sand <br /> 1 <br /> -70 ML Gray,moist,fine sandy SILT,about 60%fines&4 <br /> MW8-70 — 0%sand <br /> 75 ML Gray,moist,fine sandy SILT,about 80%fines&2 <br /> ' MW8-75J- 0%sand Bentonite seal from 65 <br /> 5to83ft <br /> Terminate continuous-core sampling method,restart sp <br /> lrt-spoon method <br /> ' -80— MW8-80 12/38/50 - <br /> SP Gray,saturated,dense,fine SAND,unconsolidated, <br /> less than 5%fines <br /> ' -$5 SP Gray,saturated,very dense,fine SAND,unconsolid <br /> MW8-85 27/50 ated,less than 5%fines #3 sand from 83 to 90 <br /> 5 f <br /> -90— No recovery Screened interval from <br /> ' MW8-90 12/23/28 85 to 90 ft <br /> 95— No recovery <br /> MWS-95 21/29/40 Bentonite interval fro <br /> m 90 5 to 108 ft <br /> ' -10 SP Pale brown,dense,saturated,fine to medium sand, <br /> MW8-100 13/18/22 unconsolidated,less than 5%fines <br />