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GROUND ZERO ANALYSIS 0 24- -26- 28 -28- -30— 30 —32- -34- 36 -36- 38 -38- 0 W LOG OF BORING S132 PROJECT PALOMINO — RIVERBANK LOCATION 23023 SANTA FE RD. RIVERBANK, CA PROJECT N0. 618 DATE DRILLED 7/28/04 LOGGED BY JOE VASQUEZ REVIEWED BY JOHN LANE, RG 6795 DRILLING COMPANY FISCH DRILLER RICK BERTOLINO METHOD DIRECT PUSH BORE HOLE DIAMETER 1 1/4 IN DEPTH DRILLED 40 FT DEPTH TO WATER : INITIAL 40 FT STATIC 34.6 CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL �' TO FT FILTER PACK TYPE NA ct: INTERVAL TO FT SURFACE SEAL TYPE NEAT CEMENT m INTERVAL FT FT TO Fr COMMENTS: WATER SAMPLE COLLECTED FROM TEMPORARY WELL CASING 0 CL 20 PAGE —L OF WELL DEPTH PID SAM 10 U.S.C. 1.0 -!— DETAIL I FT. (PPM) I BLOWCOUNT LOG — DESCRIPTION 2 4 6 8 10 S82-10 1.8 12 _ W 24- -26- 28 -28- -30— 30 —32- -34- 36 -36- 38 -38- 14 W V cn J 16 — .J W 3 ct: 18 m 0 CL 20 SB2-20 ui ~ 1.0 22 — W G R D D SND; 20% CRS, SA, W G R D D GRVL•, 10% FNS; TAN, NO DRY. SW—SM 11/20'-21.5/30' SILTY SAND (SM); 70% FN, SR, P GRDD SND; 30% FNS; GRY, NO ODOR, DRY. SM 21.5/30'-30.5' ELASTIC SILT (MH); 5% SND; 95% FNS; L TGHNESS; H PLAST, BRN, NO ODOR, MST. MH SM 30.5'-31.5' SILTY SANG (SM); 70% FN, SR, P' GRDD SND; 30% FNS; BRN, NO ODOR, MST. ED Q Qw i0p, P • LAS N 7, v WATER SAMPLE S82-40GW TAKEN FROM TEMPORARY WELL SCREEN. 24- -26- 28 -28- -30— 30 —32- -34- 36 -36- 38 -38- 1.6 40 40 W G R D D SND; 20% CRS, SA, W G R D D GRVL•, 10% FNS; TAN, NO DRY. SW—SM 11/20'-21.5/30' SILTY SAND (SM); 70% FN, SR, P GRDD SND; 30% FNS; GRY, NO ODOR, DRY. SM 21.5/30'-30.5' ELASTIC SILT (MH); 5% SND; 95% FNS; L TGHNESS; H PLAST, BRN, NO ODOR, MST. MH SM 30.5'-31.5' SILTY SANG (SM); 70% FN, SR, P' GRDD SND; 30% FNS; BRN, NO ODOR, MST. ED Q Qw i0p, P • LAS N 7, v WATER SAMPLE S82-40GW TAKEN FROM TEMPORARY WELL SCREEN.