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GROUND ZERO ANALYSIS DEPTH PID SB3 U.S.C. DESCRIPTION DETAIL LOG OF BORING 'PROJECT'' PALOMINO - RIVERBANK LOCATION 23023 SANTA FE RD. RIVERBANK, CA PROJECT NO. 618 ATE DRILLED 7/28/04 LOGGED BY JOE VASQUEZ REVIEWED BY JOHN LANE, RG 6795 LLING COMPANY FISCH DRILLER RICK BERTOLINO METHOD DIRECT PUSH HOLE DIAMETER 1 1/4 IN DEPTH DRILLED 26.5 FT DEPTH TO WATER : INITIAL 25 FT STATIC 18.95 FT SIffRE ING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO FT FILTER PACK TYPE ___ NA INTERVAL FT TO FT SURFACE SEAL TYPE NEAT CEMENT INTERVAL FT TO FT COMMENTS: WATER SAMPLE COLLECTED FROM TEMPORARY WELL SCREEN PAGE 1 OF WELL DEPTH PID SAMPLE ID U.S.C. DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-5.5 SILT (ML); 10% SND; 90% FNS; M TGHNESS; L PLAST; BRN GRY, NO ODOR, MST. 2 ML 4 g 5.5'-6/10' WELL GRADED SAND WITH SILT (SW -SM); 90% CRS, SA, W GRDD SND; SW -SM 10% FINES. 6/10'-11.5/15' SILTY SAND (SM); 70% FN, SA, P GRDD SND; 30% FNS. 8 w-10-SB3-10 -/- N 0.5 SM w 12 11.5/15'-15.5' ELASTIC SILT (MH); 5% SND; 95% FNS; L TGHNESS; M PLAST; GRY, 3 NO ODOR, MST. 14 MH 1.0 15.5'-21.5/25' SILTY SAND (SM); 80% M, SR, P GRDD SND; 20% FNS. 16 18 SM Z 20 0.9 SB3-20 22 21.5/25'-26.5' POORLY GRADED SAND WITH SILT (SP -SM); 90% FN, SR, P GRDD SND; 10% FNS. 24 SP -SM WATER SAMPLE SB3-25GW TAKEN FROM TEMPORARY WELL SCREEN. 26 0.3 -28- -30- 32 -32- �E® (x�C®CQ 34 .iOHN R LANE 36 6 5 (P� 38 ' CA An