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a ,. E <br /> ga <br /> t` - a:s.m, ; s _ Si. _ w <br />•'t' S� - . -ac s.+a�Ll'�+ M �a 1:: � N .y ,.�+�+ '� ,�,; � :�-ry� <br /> im <br /> a <br /> LOG OF EXPLORATORY . B®RMG <br /> PROJECT NUMBER 438-22.01 ARCO Page 1 of 2 <br /> BARING NGS. E-1 <br /> BY BH DATE 5/24/84 2908 Benjamin Holt Drive <br /> Stockton, California SURFACE ELEV. ` <br /> CLASSIFICATION DATA FIELD DATA <br /> LL <br /> Placti• <br /> Com <br /> pres Penetra- c <br /> Fines Liquid city sire tion I z J rn <br /> IT5F7 Ft.) DESCRIPTION <br /> (No.200J Limit Index Stength rBlowd <br /> O tj <br /> 2-inches A spha Ft a nTT7nc,es <br /> Baserock <br /> Black (5Y 2.5/2) slightly clayey <br /> ,. '�• sand FILL <br /> (CL)Black (2.5Y N2/0) sandy silty <br /> CLAY has faint product odor - <br /> d ry <br /> (dark olive gray (5Y 3/2) firle <br /> ;5 5 sandy has faint product odor <br /> I and rare coarse sand - damp) <br /> 10 (mottled dark gray (2.5Y N4/0) <br /> 15. and olive brown (2.5Y 4/4) silty <br /> has strong product odor and <br /> trace of roots - damp <br /> { '+ 15 (5C)Olive gray (5Y 4/2) clayey fine <br /> C� 12 SAND contains thin silty clay <br /> ZE V interbeds and moist <br /> (thin sand interbeds) <br /> (CL)Olive brown (2.5Y 4/4) silty <br /> 20 — CLAY - moist <br /> 41 (SP)Olive brown (2.5Y 4/4) slightly <br /> clayey SAND - wet <br /> REMARKS: Boring was converted to a ground-water monitoring well by <br /> backfilling from 24 feet to 23 feet with bentonite and by installing <br /> << 21 feet of 3-inch PUC casing. The lower 15 feet of casing was slotted an <br /> the annular space .was backfilled with pea gravel from 23 feet to 5 feet. <br /> A bendtonjt -concr to Seal wa� placed from 5 feet ho 1 foot, The well was Em CQ n <br /> a e wits a aro ective vau t box and a locAn evlce. <br />