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25 July 2003 <br />AGE -NC Project No. 03-1063 <br />Page 5 of 5 <br />4.0. FIELD PROCEDURES <br />All field procedures will be overseen by an AGE representative under the supervision of a California <br />Registered Geologist. Procedures for soil excavation, soil sampling, and equipment decontamination <br />are outlined below. <br />4.1. SOIL EXCAVATION PROCEDURES <br />Soil will be excavated using a backhoe or an excavator. Soil will be stockpiled on-site for eventual <br />disposal Forward Landfill. Excavated soil will be field screened for the presence of volatile organic <br />compounds using an OVM. Based on OVM readings and field observations, excavated soil will be <br />segregated into clean soil (if appropriate) and impacted soil; only soil exhibiting hydrocarbon odors <br />or measured OVM readings will be transported for disposal. <br />The open excavation area will be surrounded by temporary fencing. No AGE or subcontractor <br />personnel will be allowed into any excavation greater than five bsg without proper excavation <br />shoring and/or sloping techniques in -practice. <br />4.2. SOIL SAMPLING PROCEDURES <br />Soil samples collected from the base and sidewalls of the excavation will be obtained using a <br />backhoe or excavator. Soil samples will be collected from the bucket of the excavating equipment <br />by pressing a 3 -inch long by 2 -inch diameter brass sleeve into the excavated soil material. The <br />exposed ends of the sample sleeve will be covered with Teflon sheets, capped and sealed with tape. <br />Soil samples will be collected from soil stockpiles by digging approximately one foot into the soil <br />stockpile. Soil samples will be collected by hand sampling methods using a stainless steel or carbon <br />steel trowel, or by pressing a brass sampling sleeve into the soil stockpile. <br />Following sample collection, each sample sleeve will be labeled with the boring location, depth, <br />time, date and sampler's initials. Appropriately sealed and labeled samples will be placed in a chilled <br />container under ice and transported under chain -of -custody procedure to a DHS -certified laboratory. <br />4.3. EQUIPMENT DECONTAMINATION <br />Prior to each sample collection, all sampling tools used for sample collection will -be thoroughly <br />rinsed with clean water after being washed with a solution of Alconox. <br />