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; e A v <br /> Water s9amplimL <br /> Immediately prior to sampling of the groundwater, four well-casing volumes <br /> of water are removed. Water is removed by either bailer or submersible <br /> nitrogen-driven bladder pump. During the purging operation, purged water is <br /> monitored for temperature, pH and specific conductance. After the wells are <br /> purged and the temperature, pH, and specific conductance of the water <br /> stabilize, a water sample is collected. Samples for volatile organic and <br /> gasoline analyses are placed in EPA-approved 40-m1 containers with <br /> teflon-septa caps. Sample bottles are completely filled with water with no <br /> observed air bubbles present within the bottle. Samples for acid, base and <br /> neutral organics, pesticides and heavy metals analysis are placed in <br /> appropriate laboratory prepared containers. Water sample containers are <br /> labeled with the appropriate sample number, location, project name and <br /> number, time, and date of collection. All samples are placed in an iced <br /> } <br /> cooler and transported to a state-certified analytical laboratory. <br /> w, <br /> Chain-of-custody forms are logged and signed and accompany the samples to <br /> the laboratory. One travel blank accompanies the samples and is held by the <br /> lab for possible analysis. <br /> All sample containers issued by the laboratory are properly prepared by the <br /> ---- - -- ----laboratory-for the requested_analysis. ` <br /> - - r <br /> r <br /> Latest Revision: October 9, 1987 <br />