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02 May 2001 <br /> AGE-NC Project No 97-0301 <br /> Page 7 of 7 <br /> saturated Intervals of porous and permeable material A HydroPunch sampling tool will be pushed <br /> Into the specified zone, then withdrawn approximately three feet to expose an Inlet screen The <br /> Interior of the sampling tool should then fill with water and a 1-Inch outer diameter(0 D ) stainless <br /> steel bailer will be lowered and utilized to extract a ground water sample Grab ground water <br /> samples will be collected in Intervals of porous and permeable material All rinseate generated <br /> during drilling activities will be contamenzed in properly labeled DOT-approved 55-gallon drums, <br /> and will be stored on-site In an area lacking public access <br /> Following sample collection, the samples will be placed in laboratory-supplied containers and <br /> transported under chain-of-custody to a DHS-certified laboratory <br /> Proposed soil boring locations are Illustrated on Figure 2 Following borehole advancement,portland <br /> cement (grout mix)will be utilized to backfill each borehole utilizing a tremie pipe The PHS-EHD <br /> will be given the opportunity to Inspect the grout mix prior to backfilling activities <br /> 4 2 EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly rinsed with clean water after being <br /> washed with a solution of Alconox All down-hole drilling and sampling equipment will be pressure <br /> washed prior to starting the boring <br /> 43 SAMPLE HANDLING <br /> Ground water samples will be collected into laboratory supplied containers Ground water samples <br /> for TPH-g, TPH-d, TPH-k, TPH-mo, BTEX, 1,2-DCA, EDB and fuel oxygenate (EPA 8260) <br /> analyses will be collected into 40-m1 VOA vials containing 0 5 ml of hydrochloric acid as <br /> preservative and Into 1-liter amber bottles without preservative Following collection the samples <br /> will be appropriately labeled and placed on ice and kept In a cooler until delivered to the laboratory <br /> for analysis Chain-of-custody protocols will be used to document sample custody transfer from the <br /> field to the analytical laboratory A chain-of-custody form will accompany the samples <br /> • <br /> Advanced GeoEnvironmental,Inc <br />