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5.2.2 Vapor Extraction Test RESNA will perform a vapor extraction test following extraction point installation The purpose of this test will be to evaluate and document the expected rade of influence for each extraction point and to help finalize system design parameters by determining hydrocarbon concentrations in the air stream 1 The extraction test will utilize a regenerative blower to induce a vacuum on the wells The extraction flow rate and wellhead pressures will be recorded over the test duration ' Magnahelic gauges will be used to record pressures at each of the wells. Hydrocarbon vapors generated during the test will be treated using carbon adsorption During the test, PID readings will be taken from the influent and effluent airstreams of the carbon vessels In addition, air samples will be taken from each well for laboratory analysis to determine hydrocarbon concentrations in the air stream ' Followingcompletion p of data collection, the information will be reduced to document the expected radii of influence and to provide specifications for an appropriate off-gas treatment technology All project field activities will be conducted in accordance with a site specific Health and Safety Plan This plan will be developed as part of the preliminary engineering task as detailed below 5.3 Laboratory Analysis Soil, groundwater, and air samples will be collected and submitted for analysis to a State certified laboratory under chain-of-custody protocol Up to three soil samples from each bonng/well will be submitted for analysis of TPHG and BTEX using EPA methods 5030/8015 and 8020 A water sample, from each well, will also be submitted, under chain-of-custody protocol to a State certified ' laboratory for analysis of TPHG, TPHD and BTEX using EPA methods modified 5030/8015 and 8020 Three air samples will be analyzed for BTEX and TPHG In addition, one air sample will be analyzed for vapor phase lead. 1 R 042992 TIL 9