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temperature will be measured to ensure that fresh formation water is entering the wells prior to <br /> a <br /> sampling. Purge water will.be placed into a labeled, 55-gallon drum for on-site storage pending <br /> disposal. <br /> Groundwater samples will be collected from the wells with a new, single-use, polyethylene bailer <br /> I for each well. The water samples will be transferred from the bailer into appropriate sample <br /> containers supplied by the analytical laboratory. Following collection,each sample container <br /> will be labeled, placed in an insulated chest withce, and transported to the laboratory under <br /> chain of custody protocol. <br /> j The groundwater samples will be submitted for analysis to an ELAP certified laboratory. The <br /> samples will be analyzed for TPH-D under EPA method 8015 (modified), and for BTEX and <br /> MTBE under EPA method 8020. <br /> s � <br /> 3.6 Well Surveying <br /> s Monitoring wellhead elevations for the new wells will be surveyed by a licensed land surveyor to <br /> the nearest 0.01-foot. In addition, the latitude and longitude data of the wells will be collected <br />' with submeter accuracy. The resultant data will be employed in calculation of groundwater <br /> gradient and flow direction(s) and for submittal to the State of California's Geotracker database. <br /> 3.7 Disposal of Monitoring Well Installation Wastes <br /> Drill cuttings from the boreholes will be stored inia secure top roll off bin or containerized in <br /> marked 55-gallon drums located at the site. Decontamination liquids will be contained in 55- <br /> gallon drums, as they are produced and also stored on-site. Soil samples not selected for <br /> analyses will be placed into the drums with the drill cuttings to await disposal. Used sample <br /> sleeves will be disposed of with the drill cuttings. Waste soil and water will be characterized and <br /> disposed at appropriate facilities, based on analytical results. <br /> 3.8 Investigative Reporting <br /> Following completion of well installation activities, a report documenting activities, results, and <br /> s <br /> conclusions will be generated and issued to the SJCEHD. <br /> i <br /> CNCD\04-28/03\SHARE\USlr\03-0027.doc 5 <br /> i <br />