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2615 Waterloo Road <br />Page 2 <br />Work Plan - Soil Boring Installation <br />GPE Project No. 436.2 <br />January 9 2004 <br />logged, and soil samples and a groundwater sample will be collected. The proposed <br />location is shown on the attached site map. <br />A groundwater sample will be tested for the possible presence of gasoline range <br />petroleum hydrocarbons, BTEX compounds and MTBE. <br />A report will be prepared and submitted which describes this work, its findings and <br />implications. <br />2.1 Soil Boring Installation <br />Geo-Phase Environmental Inc. proposes one soil boring to a depth of about 60 feet, or a <br />depth sufficient to penetrate the groundwater surface. The soil boring will be installed by <br />V&W Drilling using 6-inch outside diameter hollow stem auger equipment. Soil cuttings <br />will be stockpiled on the premises until their proper disposition can be arranged. <br />The soil boring will sampled at 5-foot intervals for geological and possible analytical <br />evaluation using a 2.0-inch diameter by 1.5-foot long (i.d.) hammer driven California <br />Split Spoon sampling device fitted with three 2 by 6 inch stainless steel, sample liners. <br />The soil sample collection procedure will be as follows: The end of each sample tube <br />removed from the split spoon will be sealed with aluminum foil, capped with plastic end <br />caps, secured with tape, labeled and placed in a cooler at 4° Celsius for possible transport <br />to the laboratory using Chain of Custody protocol. Chain of Custody (CofC) forms are <br />documents used to track the handling of samples. All dates, times, persons and <br />companies handling the samples will be listed from the time the sample is collected to its <br />ultimate disposal. All soil sampling equipment will be decontaminated between uses by <br />washing using a steam cleaner. Nitrile gloves will be worn during sample collection and <br />changed between the collection of each sample. <br />A detailed log will be made of the boring. The information to be noted includes such data <br />as sample depths, blow counts from hammer driven sampling devices, horizons of <br />detectable contamination (detected by field methods), soil classification utilizing the <br />Unified Soil Classification System and sediment description (color, texture, composition, <br />hardness, moisture content, and post-depositional changes that have occurred in the <br />sediments). A PID organic vapor meter will be used to assist in detecting the presence of <br />any hydrocarbon contamination in the soil samples. <br />Upon completion of the boring, a groundwater sample will be obtained by lowering a <br />disposable plastic bailer down through the drill stem and retrieving a volume of water <br />adequate to fill the sample containers. The sample will be carefully transferred to 40m1 <br />preserved VOA vials. After retrieval of the groundwater sample, the soil boring will be <br />closed by completely filling it with Class G neat cement. <br />2937 Veneman Ave., #B240 <br />Geo-Phase Environmental Inc. Phone (209) 569-0293 <br />Modesto, CA 95356 Fax (209) 569-0295