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07 Octobei 2002 <br /> AGE-NC Project No 01-0827 <br /> Page 7 of 7 <br /> eontamrnatron due to sampling devices Samples will be drawn and collected in such a manner that <br /> agitation and exposure of the groundwater to the atmosphere is n-unrmal Sample containers will be <br /> tilled using the appy oprrate disposable sampling attachment which allows controlled flow out of the <br /> bottom of the bailer by lifting up on the check valve <br /> 4 4 4 Sample Handling <br /> Ground water samples will be collected into laboratory-supplied containers Ground water samples <br /> for BTEX, TPH-g, fuel oxygenates analyses will be collected into 40-m1 VOA vials containing 0 5 <br /> ml of hydi ochlorre acrd as preservative,water samples for TPH-d will be collected into 1-liter amber <br /> bottles without preservative Following collection, the samples will be appropriately labeled and <br /> placed on ice and kept in a cooler until deliver ed to the laboratory for analysis Chain-of-custody <br /> pr otocols will be used to document sample custody transfer from the field to the analytical laboratory <br /> A chain-of-custody form will accompany the samples <br /> • 4 5 EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> and rmsed with clean water prior to each sampling location Hollow-stern augers will be steam- <br /> cleaned prior to use at the boring location <br /> 46 IN-SITU OZONE SPARGING <br /> AGE proposes to install an Acre System Inc (ASI) low flow, one-half pound oxygen/ozone <br /> generator at the site, which is capable of producing a maximum of 10% by weight total ozone <br /> saturated air, AGE proposes to infect a total of 5 lbs of ozone per day into the current IAS well <br /> network This value is a r ecommended concentration ti om typical ozone destruction observed in field <br /> application, lower concentr atrons may ultimately be used to oxidize the dissolved hydr ocar bons at <br /> the site <br /> Gr ound water depth and dissolved oxygen content will be collected r egularly fi om the monitoring <br /> wells throughout the dui atron of the IAS open atnon Ground water depth will be measured using a <br /> Solrnst water level meter, and dissolved oxygen will be measured using a YSI Model 55 dissolved <br /> oxygen meter <br /> Advaneed0ecEnvirOnnle[lIal Inc <br />