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{ <br />' (up gradient)of the former USTs The fourth quarter of Phase IV groundwater sampling was completed in <br /> P <br /> May 1997 The CAP was submitted to EHD in January 1998 <br /> 1 <br /> Quarterly groundwater sampling has been conducted since 1996 This report is the second quarter 2002 <br /> groundwater monitoring report which represents the fourth report in the current fiscal year groundwater <br /> sampling effort and presents the results of continued groundwater sampling following the schedule presented <br /> tin 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 /> 20 FIELD SAMPLING SUMMARY <br />' Groundwater samples were collected from monitor wells MW-2, MW-2A, and MW-9 (Figure 1-1) on <br /> September 19,2002 In addition and an equipment blank water sample and a water sample from the holding <br /> tanks were collected Groundwater sampling held data sheets for the monitor wells are presented in Appendix <br />' B <br /> Water levels were measured in all wells on September 18,2002 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 was recorded on a sampling data sheet The pump was then removed and a <br /> disposable 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 />' an insulated chest, and logged on a chain-of-custody form for delivery to the analytical laboratory <br /> L1PR0lF 7S\SANJOQWSA12QO3"T WPD 2 <br /> 1 <br />