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AUSTO ENGINEERING GROUP LOG OF BORING SB- <br /> LAFAYEr, CALIFORNIA 7 Page 1 of 1 <br /> ALISTO PROJECT NO: 10-211-15 DATE DRILLED: 06-27-02 <br /> CLIENT. PG&E BOREHOLE DIAMETER: 4" <br /> SEE SITE PLAN LOCATION:McDonald Island Gas Storage Facility BOREHOLE DEPTH: 14' <br /> FOR BORING LOCATION DRILLING METHOD: Hand auger CASING DIAMETER: 3/4" <br /> DRILLING COMPANY: Alisto Engineering CASING MATERIAL: PVC <br /> LOGGED BY. B. Nagle APROVED BY. Al Sevilla <br /> > WELL DMG W GEOLOGIC DESCR TION <br /> w <br /> Imported gravel surface to 6" <br /> 1 SM Silty SAND, damp, brown. <br /> U <br /> Y 2 <br /> C <br /> 16.2 m 3 <br /> 4 <br /> 5- <br /> 22.1 = 6— Color change to tan ® 5' <br /> 7- <br /> 8- <br /> 10.9 81o.s = _0 9 , <br /> o Color change to gray ® 10' <br /> _ Q, 10 Moist to wet at 10 <br /> — 11 <br /> 12- <br /> 13— Dark brown ® 13' <br /> 14 _ _ _ _ _ _ <br /> Boring terminated at 14'. PVC casing removed before grouting <br /> 15 with neat cement <br /> 16- <br /> 17- <br /> 18- <br /> 19- <br /> 20— <br /> Y <br /> !A <br /> g <br />