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F.r <br />Job No: 01-3058-002-01 <br />t.· <br />934......9 <br />Page B-2 ; 14€ 4·'rpi: <br />£92 <br />FIELD EXPLORATION'PROCEDURES <br />a ..>; 8.k-*2 ·445*4}6· 1 <br />B-1. The subsurface conditions were explored by drilling 3 bucket- <br />auger borings, to a depth v rangingf,from 6 to 40 feet' below <br />existing grade. The approximate Blocation of the borings are i <br />shown on the Boring Location :,Map/ Figure 3, attached. Thel - - <br />field exploration was performe* under.the supervision>oftiouriav,e,: w:, <br />Engineer who maintained a continuousflog of the subsurface $4*'GT'soils encountered and obtained samples for laboratory testing. i#* *.:44: <br />/ te f :'·.e·; '11:it·F·hi -'. <br />. <br />B-2. Subsurface conditions are: summarizedf on the log of borings. 19#4The soils encountered were classified in general accordance 4. *96?37*4.with the Unified Soil Classification System (see Key to Logs, 4%442 <br />. f :':1.1Figure B-0). <br />B-3. Drill holes were located in the field by pacing, working from ·' <br />known locations on a map. <br />B-4. The following sampling and testing techniques were used to <br />evaluate the subsurface conditions: <br />a. Relatively undisturbed samples were obtained using a 3- <br />inch outside diameter California sampler lined with brass <br />rings, each 1 inch long and 2-1/2 inch inside diameter. <br />The brass rings were transferred into a plastic bag and <br />sealed in a plastic tube immediately upon extraction from <br />the borings. <br />b. The corresponding drive energies per foot of penetration <br />(ft-kip/ft) are indicated on the logs.These energies <br />provide a measure of the relative density or consistency <br />Of the materials encountered.The weights of the <br />separate kellys for the bucket auger borings are shown on <br />the Key to Logs, Figure B-0. <br />C.Bulk samples were also obtained. <br />B-5. The soils were classified based on field observations and <br />laboratory tests. <br />B-6. Groundwater was not observed during the investigation of this <br />site. <br />1