Laserfiche WebLink
' contammanon is present in the vicinity of MW-2A and that groundwater contamination is not present south <br /> (upgradient)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 third quarter 2003 <br /> groundwater monitoring report which represents the first report in the current fiscal year groundwater <br /> sampling effort and presents the results of continued groundwater sampling following the schedule presented <br /> 1 in Table IA <br />' Table I-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 /> LF <br /> ird MW-2, MW-2A and MW-9 <br /> urth 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 /> October 6,2003 An equipment blank water sample was also collected for analysis Groundwater sampling <br /> field data sheets for the monitor wells are presented in Appendix B <br /> Prior to well purging, water levels were measured in all wells on October 6, 2003 to collect data for <br /> potentiometne contouring The standing water volumes within wells scheduled for sampling were calculated <br /> using water levels measured in each well at the time of sampling and total well depths A submersible pump <br /> attached to a disposable discharge hose was then lowered into the well and used to purge three well casing <br /> volumes from each of 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 groundwater samples for benzene,toluene,ethylbenzene, <br /> and xylene(BTEX),and for total petroleum hydrocarbons as gasoline(TPH-G)analysis The groundwater <br /> sample was transferred into 40 ml glass sample containers Sample containers containing air bubbles were <br /> discarded and recollected Sample containers were sealed in a plastic bag, placed with ice in an insulated <br /> . chest, and logged on a chain-of-custody form for delivery to the analytical laboratory <br /> "FR07F,MISANJI)Q1.SA1]Q113RPT WPD 2 <br />