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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER F90-02.01 BORING NO. MW-13 <br /> PROTECT NAME A.Teschert&Son,Inc. PAGE 4 OF 5 <br /> BY D. Buchanan DATE 8/13/92 SURFACE ELEV. 20.46 ft. <br /> PENETRA- 0 <br /> PID RECOVERY TION -Nt W WELL <br /> LITHO- <br /> iJ GRAPHIC DESCRIPTION DETAIL <br /> �¢W L1Lj COLUMN <br /> ' (AFm) (ft/ft) (blws/ft) LD L�� co <br /> 0 1.1/1.5 SAND(SP)(continued) <br /> @ 60': Yellowish brown(10YR, 5/6) with light <br /> ' 56 gray(5Y,6/1)mottling; trace fines; fine sand, <br /> . . . . subangular,85-9090 quartz,5% dark rock <br /> fragments,5-10%feldspar; very dense; damp; <br /> ' strong product odor. <br />' 0 1.5/1.5 65 . . 65': Moderate product odor. <br /> 34 <br /> 0 1.2/1.4 70 • . @ 70': 5%low plasticity fines; 9590 fine sand; <br /> 83/0.9 moderate product odor. <br />' <br />' @ 75': 5%fines;85%fine sand; 1090 medium <br /> 3.1 1.111.5 75 sand;caliche abundant locally; iron oxide staining <br /> • • and manganese oxide staining common; very <br /> 50 dense;damp to very moist;strong product odor. <br /> SILTY SAND(S11O,brown(10YR, 5/3); 3540% <br /> low plasticity fines;60-6590 fine sand; trace <br /> medium sand;sand is subangular to subrounded; <br /> 90%quartz,5%feldspar,5%dark grains; iron <br /> oxide staining and manganese oxide staining <br /> common; very dense;damp; strong product odor. <br /> 8a <br /> REMARKS <br /> Soil boring was drilled using 8-inch diameter hollow-stem auger drilling equipment and sampled with a modified <br /> Califnmia split-spoon sampler equipped with stainless steel liners.See attached well details for well construction <br /> information. <br /> E N <br />' IL ASSOCIATES <br />