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yet been selected A general health & safely plan in included as <br /> EXHIBIT B <br /> 2 Soil samples will be taken at 5' intervals from 10 ' below <br /> grade to the capillary fringe, which is estimated to be at about <br /> 50' bgl . Coring equipment will consist of either an 18" or 30" <br /> California Modified split-spoon sampler designed to hold metal <br /> tubes for obtaining soil samples. At least one ( 1 ) tube will be <br /> preserved for analysis by placing teflon tape over the ends of <br /> the tube, covering with plastic caps, and sealing both ends with <br /> duct tape The tube will be clearly labeled & placed in a sealed <br /> chest with either ice or blue-ice pending transfer to a State <br /> Certified laboratory for analysis <br /> 3 . Drill spoils & unused core material will be placed in clearly <br /> labeled, sealed metal drums & stored on location pending results <br /> of the laboratory analyzes. <br /> 4 After determining depth to water by use of a suitable <br /> measuring device, each soil boring will be advanced a minimum of <br /> 10' below the water table. <br /> 5 Upon reaching the desired depth, 2" blank & slotted, flush <br /> screw-thread PVC casing, fitted with a screw-type bottom cap, <br /> will be run in the hole When bottom is reached, the casing will <br /> be pulled up slightly to avoid the possibility of buckling or <br /> laying against the side of the hole The annular space between <br /> casing & augers will be filled with clean, graded, #2 1/2 or #3 <br /> sand. The casing will be constantly vibrated during sand <br /> placement to eliminate bridging & voids Fill depths will be <br /> monitored constantly as the auger flights are slowly withdrawn <br /> When sand fill has stabilized, (a minimum of 2' above the top of <br /> the slots, ) a bentonite seal will be placed, and the annular <br /> space filled to the surface with a cement/bentonite slurry <br /> Refer to PLATE V for a schematic of each well completion <br /> 6 Each well will be fitted with a precast Christy-type box, <br /> with the PVC extending into the box far enough to allow placement <br /> of a locking casing cover. The casing & box will be thoroughly <br /> grouted into place to ensure the integrity of the seal. <br /> 7 Within 18-24 after completion, each well will be developed by <br /> use of a hard rubber cup or suitable device. Purge fluids will <br /> be placed in suitably marked sealed containers & stored on <br /> location pending results of laboratory analyzes . <br /> 8 Preserved soil samples will be transported under chain of <br /> custody to a State Certified laboratory with instructions to <br /> analyze for BTEX, (EPA 6020, ) & TPH-G (EPA 8015M, ) using current <br /> 0 County approved detection limits. <br /> 5 <br />