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TABLE A-1 <br /> '-" Groundwater Physical Parameters <br /> .,r End of Purge Values <br /> Well/Sample pH Temperature (°F) Conductivity(umhos) <br /> .L. MW-1 7.0 76.4 995 <br /> MW-2 6.9 75.7 1160 <br /> ,r MW-3 6.9 74.1 1437 <br /> MW-4 6.8 73.1 1252 <br /> �,. MW-7 7.1 71.1 1355 <br /> The bailer used to sample each well was attached to new thin nylon line, lowered into the well <br /> by hand, filled and brought to the surface. The water in the bailer was carefully poured into <br /> laboratory prepared 40 milliliter glass bottles (VOA vials) which were then capped with teflon <br /> �. lined caps. Samples were labeled with stick-on labels filled out in indelible ink with the <br /> following information: <br /> Site name <br /> ` Date collected <br /> Time collected <br /> "-rte Sample ID <br /> Sampler's initials <br /> Analysis required <br /> Lo <br /> Samples were sealed into ziplock baggies and placed with ice in an insulated chest for delivery <br /> with a chain-of-custody document to the WESTON Analytics' laboratory in Stockton, California. <br /> This laboratory is certified by the State of California to perform the required analyses. Samples <br /> were submitted for analysis by EPA Method 239.2 for Soluble Lead, EPA Method 8015 <br /> (Modified) for Total Petroleum Hydrocarbons as Gasoline (TPH-G) and by EPA Method 8020 <br /> for benzene, toluene, ethylbenzene and xylenes (BTEX). <br /> �. Quality control/quality assurance procedures consisted of the collection of a blind duplicate and <br /> an equipment decontamination rinsate samples. The duplicate water sample was collected <br /> concurrently with sample MW-1. This duplicate sample was given the fictitious well/sample <br /> .., name MW-8 and was scheduled for analysis of BTEX only. The equipment decontamination <br /> sample was collected from the bailer after the bailer had been decontaminated after collecting <br /> sample MW-1. The bailer was filled with distilled water which was then poured into the sample <br /> �- bottles. The equipment decontamination sample was designated with the fictitious well/sample <br /> name MW-9. Each of the samples were placed into the insulated cooler at the time of <br /> collection. All samples were submitted to the laboratory on the same day they were collected. <br /> 4 <br /> RPPS/EBMUARPr.WP 08/26192 <br /> i.r <br />