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� • i <br /> I07 January 2002 <br /> AGE-NC Protect No 96-0263 <br /> IPage 7 of 7 <br /> I A constant ground water pumping rate for the aquifer pump test will be determined from the results <br /> of the 8-hour step pump test and available storage for produced water The ground water will be <br /> extracted utilizing a submersible, 4-inch diameter Grundfos Rediflow self-priming submersible <br /> I pump The ground water pumping rate will be increased at regular intervals to achieve the optimum <br /> pumping rate for the greatest drawdown influence During pumping, the ground water extraction <br /> flow rate will vary between one and six gallons per minute If the decline of the ground water level <br />' is not satisfactory within the first eight hours of the pilot test, an additional testing will be performed <br /> to achieve sufficient ground water drawdown <br />' The 12-hour drawdown test will be conducted at a constant rate determined by the results of the <br /> 8-hour test and the available storage or handling capacity for produced ground water Results of the <br /> 12-hour pilot test will be utilized to assess the feasibility of ground water extraction at the site <br />' All extracted groundwater will be stored in a temporary, above-ground (Baker-type), storage tank <br /> Ground water samples will be collected from the effluent line during the 12-hour pump test <br />' approximately 6 hours after pumping is initiated and lust before ending the pump test The samples <br /> will be collected into four 40-m1 EPA-approved VOA vials for analysis for TPH-g,BTEX, MTBE, <br /> TBA, TAME, DIPE, ETRE, EDB and 1,2-DCA by EPA Methods 8015M, 8020 and 8260, <br /> respectively The purged ground water will be transported to a suitable non-hazardous waste <br /> disposal/recycling facility <br /> I <br /> 45 SAMPLE SHIPMENT <br /> Following collection the samples will be appropnately labeled and placed on ice and kept in a cooler <br /> until delivered to the laboratory for analysis Chain-of-custody protocols will be used to document <br /> sample custody transfer from the field to the analytical laboratory A chain-of-custody form will <br /> accompany the samples <br /> 4 6 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 /> I <br /> I <br /> Advanced GeoEnvironmental,Inc <br />