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�A <br /> ik <br /> bailer. samples will be collected for volatile organic <br /> compound analyses immediately after purging is complete. A. <br /> se t will be obtained to determine pH, specific <br /> on uc a cae, and water temperature in the field. <br /> a A11 samples for chemical analyses will be placed in labora- <br /> tory-prepared bottles. The bottles will be filled to the <br /> top and capped securely. Each sample bottle will be labeled <br /> with indelible ink and placed in a cooler immediately after <br /> sampling. <br /> 0 All sampling equipment will be decontaminated atter sampling <br /> to prevent cross-contamination between wells. Bailer line <br /> will be dedicated to each well and will consist of high-test <br /> monofilamentline or polypropylene rope. Sampling equipment <br /> will be protected from contamination between sampling points <br /> by wrapping in plastic . <br /> The sampling equipment will be decontaminated as follows: <br /> 0 Place dirty equipment (e.g. , bailers, pumps, buckets, etc.) <br /> on a plastic ground steet. <br /> 0 Rinse equipment in a tub of potable water to remove surface <br /> dirt and mud if necessary. <br /> o Scrub equipment with a bristle brush in a basin filled with <br /> laboratory-grade detergent and potable water. <br /> o Rinse off soap in a tub of potable coater. <br /> o Rinse with ASTM Type II Reagent water. <br /> Along with the monitoring well samples, quality control samples <br /> will be collected as follows: <br /> 0 one field duplicate for each analysis. <br /> 0 one field blank per day of sampling for each analysis. <br /> 0 one trip blank for BTX&E analysis. <br /> 2.6 TIDAL INFLUENCE STUDY <br /> M The daily tidal fluctuation in water bodies near the subject site <br /> cowl have a significant impact on the groundwater system beneath <br /> the mite. The site is located approximately 2400 feet southeast <br /> of the Stockton deep water charnel and 2500 feet northeast of <br /> Mormon Slough. These waters undergo a diurnal tidal flux of <br /> approximately 4 feet during most of the year and nearly 5 feet <br /> during the extreme tides of the winter months (based on data from <br /> the Port of Stockton) . <br /> 2 - 5 <br />