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CRC Environmental Risk Management,Inc. <br /> 17875 Von Karman Avenue,Suite 200 LOG OF BORING B5 <br /> Irvine,California 92714 <br /> PROJECT: ASB STOCKTON AIR METRO LOCATION: 1888 Lockheed Court, Stockton, CA <br /> PROJECT NO.: 2100-247-5 SURFACE ELEVATION: 22 Feet Above MSL <br /> DATE STARTED: 11-30--94 INITIAL WATER LEVEL: Not encountered <br /> DATE FINISHED: 1194 FINAL WATER LEVEL: NA <br /> DRILLING METHOD: Geoprobe TOTAL DEPTH: 15 feet <br /> DRILLING COMPANY: Pacific OnSite Services GEOLOGIST: A. B. Esmilla <br /> w U_ PID (Ppm) U <br /> 07 cn =c0 <br /> °' Q O O PROFILE Q CL 00 GEOLOGIC DESCRIPTION REMARKS <br /> m Q <br /> ' 10 100 1000 <br /> CONCRETE. 4 inches thick <br /> 5 — 65-5 0.7 SILT (ML), medium brown, dry, slightly sandy, No odor, no stain <br /> crumbly <br /> 10— 135-10 1.2 CLAY (CL), medium brown, dry, with thin No odor, no stain <br /> streaks of white calcium carbonate, crumbly <br /> 15— 135-15 1.1 / / SAND (SP),medium brown brown, damp, <br /> medium grained, soft, very friable, poorly No odor, no stain <br /> graded Drilling terminated at <br /> 15 feet <br /> 20— <br /> 25- <br /> 30 <br /> Page 1 of 1 <br />