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. 07 October 2002 <br /> AGE-NC Pi oject No 01-0827 <br /> Page 7 of 7 <br /> contamination 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 minimal Sample contazneis will be <br /> filled using the appropriate disposable sarnphng 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 labor atory-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 hydrochlonc acid as pr eservatrve,water samples for TPH-d will be collected into I-liter amber <br /> bottles without pi enervative Following collection, the samples will be appropriately labeled and <br /> placed on ice and kept in a cooler until delivered to the laboratory for analysis Cham-of custody <br /> pi otocols will be used to document sample custody transfer fromthe fieldto 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 Al(,onox <br /> and rinsed with clean water prior to each sampling location Hollow-stem augers will be steam- <br /> cleaned pnor 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 recommended concenti atron from typical ozone destruction observed m field <br /> application, lower concentrations may ultimately be used to oxidize the dissolved hydrocarbons at <br /> the site <br /> Gr ound water depth and dissolved oxygen content will be collected regularly from the monitoring <br /> wells throughout the duration of the IAS open atron Ground water depth will be measured using a <br /> Solmst water level meter, and dissolved oxygen will be measured using a YSI Model 55 dissolved <br /> oxygen meter <br /> Advanced CreoEnvironmental Inn <br />