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GROUND ZERO ANALYSIS 0 <br />0LOG <br />OF <br />BORING SB3 <br />PROJECT PALOMINO - RIVERBANK LOCATION <br />23023 SANTA FE RD. <br />RIVERBANK, CA PROJECT <br />N0. 618 <br />DATE DRILLED 7/28/04 LOGGED BY _ <br />JOE VASOUEZ <br />REVIEWED BY _JOHN LANE. <br />RG 6795 <br />DRILLING COMPANY FISCH DRILLER <br />RICK BERTOLINO <br />METHOD DIRECT PUSH <br />BORE HOLE DIAMETER 1 1/4 IN DEPTH DRILLED <br />26.5 FT DEPTH TO WATER : INITIAL 25 FT <br />STATIC 18.95 <br />CASING TYPE NA DIAMETER IN <br />SCHEDULE <br />INTERVAL <br />FT TO FT <br />SCREEN TYPE NA DIAMETER IN <br />SLOT SIZE <br />INTERVAL <br />FT TO <br />FILTER PACK TYPE NA <br />INTERVAL <br />SFT <br />TO ------- <br />SURFACE SEAL TYPE NEAT CEMENT <br />INTERVAL <br />FT TO <br />COMMENTS: WATER SAMPLE COLLECTED <br />FROM TEMPORARY WELL SCREEN <br />SFT <br />WELL <br />I SAMPLE ID <br />U.S.C. <br />PAGE -L OF 1 <br />DETAIL <br />FT. <br />PPM <br />BLOWCOUNT <br />LOG <br />DESCRIPTION <br />MST. <br />2 <br />ML <br />4 <br />65.5-6/10 WELL GRADED SAND WITH SILT (SW -SM); 90% CRS, SA, W GRDD SND; <br />SW—SM 10% FINES. <br />8 6/10'-11.5/15' SILTY SAND (SM); 70% FN, SA, P GRDD SND; 30% FNS. <br />z <br />w10 SB3-10 <br />vvi 0.5 SM <br />3 -12 11.5/15'-15.5' ELASTIC SILT (MH); 5% SND; 95% FNS; L TGHNESS; M PLAST; GRY, <br />NO ODOR, MST. <br />>- <br />a 14 <br />ix <br />a. 1.0 MH <br />-16- 15.5'-21.5/25' SILTY SAND (SM); 80% M, SR, P GRDD SND; 20% FNS. <br />18 <br />SM <br />20 0.9 S83-20 <br />22 21.5/25'-26.5' POORLY GRADED SAND WITH SILT (SP -SM); 90% FN, SR, P GRDD SND; <br />10% FNS. <br />24- <br />-SP -SM WATER SAMPLE SB3-25GW TAKEN FROM TEMPORARY WELL SCREEN. <br />26 0.3 <br />F- <br />28- <br />-30- <br />-32— <br />32— ED Go <br />34 JOHN P. ' <br />L;,Pdc- <br />36 6 5 <br />—38- <br />40 <br />8 40 <br />