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' (up gradient)of the former USTs The fourth quarter of Phase IV groundwater sampling was completed in <br /> . May 1997 The CAP was submitted to EHD in January 1998 <br /> Quarterly groundwater sampling has been conducted since 1996 This report is the fourth quarter 2002 <br /> groundwater monitoring report which represents the second report in the current fiscal year groundwater <br /> sampling effort and presents the results of continued groundwater sampling following the schedule presented <br />' in Table 1-1 <br /> Table 1-1 <br /> Sampling Schedule <br />' Quarter Monitor Wells to be Sampled <br /> First MW-2, MW-2A and MW-9 <br />' Second MW-2, MW-2A, MW-3A, MW-4, MW-6, MW-7 and MW-9 <br /> Third MW-2, MW-2A and MW-9 <br /> Fourth MW-2, MW-2A, MW-3A, MW-4, MW-5, MW-6, MW-7, and MW-9 <br /> 4 2.4 FIELD SAMPLING SUMMARY <br /> Groundwater samples were collected from monitor wells MW-2,MW-2A,MW3A,MW-4,MW-5,MW-6, <br /> MW-7 and MW-9 (Figure 1-1) on December 10, and 11 2002 In addition a duplicate sample, and an <br /> equipment blank water sample were collected Groundwater sampling field data sheets for the monitor wells <br />' are presented in Appendix B <br /> Water levels were measured in all wells on December 10,2002 to collect data for potentiometric contouring <br /> The standing water volumes within wells scheduled for sampling were calculated using water levels measured <br /> in each well at the time of sampling and total well depths A submersible pump attached to a disposable <br />' discharge hose was then lowered into to the well and used to purge three well casing volumes from each of <br /> the monitor wells <br />' At the beginning and during the purge process,the temperature,pH,and specific conductance of the purge <br />' water were measured and recorded on a sampling data sheet The pump was then removed and a disposable <br /> bailer was lowered into the well for the collection of a groundwater samples for benzene, toluene, <br /> ethylbenzene,and xylene(BTEX)and for total petroleum hydrocarbons as gasoline(TPH-G)analysis The <br />' groundwater sample was transferred into 40 ml glass sample containers Sample containers containing air <br /> bubbles were discarded and recollected Sample containers were sealed in a plastic bag,placed with ice in <br /> ian insulated chest, and logged on a chain-of-custody form for delivery to the analytical laboratory <br /> 1 <br />' UPROJEUMSANJOQ1HSAVQ04RPT WPD 2 <br />