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[ �� 3 a <br /> OR <br /> a <br /> LOG OF EXPLORATOR' Y BORinG <br /> Page I of 2 <br /> PROJECT NUMBER 43B-22,01 ARCO BORING NO. E-1 <br /> 2908 Benjamin Holt Drive <br /> By BH DATE 5/24/84 Stockton, California SURFACE ELEV. <br /> CLASSIFICATION DATA FIELD DATA <br /> ii <br /> PlasU Compres Pmftrr = v n DESCRIPTION _ <br /> Y.fines Liquij city S iveth iBlowsl n ?� to <br /> 6Nu.Y60) Limit Index <br /> iTSFI F0 'S tj <br /> 2-inches Asphalt ana ,-inc es <br /> = Baserock <br /> Black (5Y 2.5/2) slightly clayey <br /> h• sand FILL <br /> i <br /> (CL)Black (2,5Y N2/0) sandy silty <br /> CLAY has faint product odor - <br /> dry <br /> (dark olive gray (5Y 3/2) fine <br /> 16 5 sandy has faint product odor <br /> and rare coarse sand - damp) <br /> E <br /> :X <br /> (mottled dark gray (2.5Y N4/0) <br /> 15 10 and olive brown (2.5Y 4/4) silty <br /> has strong product odor and <br /> trace of roots - damp <br /> + (SC)Olive gray (5Y 4/2) clayey fine <br /> 12 15 SAVO contains thin silty clay <br /> p interbeds and moist <br /> (thin sand interbeds) <br /> (CL)Olive brown (2,5Y 4/4) silty <br /> CLAY - moist <br /> 41 20 (SP)Olive brown (2.5Y 4/4) slightly <br /> rl ayey^ 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 install (ng <br /> 21 feet of 3-inch PVC casing. The lower 15 feet of casing was slotted an <br /> the annular space was backfilled with pea gravel from 23 feet to 5,'r'eet. glri�Gl1 <br /> A ben on{{t -concrete sea'1 wa placed from Meet tdo 1 foot. The well was <br /> wi i aProtectjve vault box and a 1oc 1na evice. _ <br />