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G � <br /> Geological`technics Inc. Page 3 <br /> C&B Equipment <br /> Monitoring Well Installation Report <br /> - Project No. 336.2 <br /> November 13, 1995 <br /> 9/95 Collect around of groundwater samples <br /> 11/95 Submit report <br /> 2.0 SUBSURFACE INVESTIGATION <br /> The following sections describe the procedures, protocol, and methods used during <br /> the subsurface investigation to characterize the vertical and lateral extents of <br /> petroleum hydrocarbons sourced from a suspected former leaking underground <br /> storage tank. Geological Technics Inc. proposed to investigate the lateral extent of <br /> soil and groundwater contamination in the June 15, 1995 Monitoring Well Installation <br /> and Groundwater Monitoring Work Plan. <br /> 21 Soil Boring Sampling <br /> On July 25, 1995 a total of three- (3) soil borings were advanced to a total depth of <br /> .:: 21.5 feet below ground surface (MW-1, 2, & 3) in positions surrounding the <br /> suspected point of release (Figure 2 Site Map). Soil cuttings were underlain and <br /> covered with plastic and stockpiled on site. <br /> Soil samples were collected for geological and possible analytical evaluation at five <br /> foot intervals. All soil samples were field screened for subjective evidence of <br /> �< contamination as described in the Quality Assurance Program found in Appendix A. <br /> Soil samples were collected in 6.0 inch brass liners using a 2.0 inch modified <br /> California split spoon sampler. All soil samples were sealed with aluminum foil, <br /> capped, labeled and placed in a cooler at 4° Celsius for transport to the laboratory <br /> following Chain of Custody protocol. <br /> =� A boring log providing sediment description using the U.S.C.S. and field <br /> observations was maintained by a professional geologist working under the <br /> supervision of a registered geologist. <br /> 2.2 Monitoring Well Installation <br /> After reaching the total depth in each boring the boring was converted into a <br /> groundwater monitoring wells as follows: <br /> The well borings were advanced to a total depth of 20 feet below surface grade using <br /> a 8.00 inch outside diameter continuous flight hollow stem auger owned and <br /> operated by V&W Drilling (C57#710678). <br /> f <br />