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s <br />Sampling of groundwater is performed by Exceltech, Inc. sampling technicians. <br />Summarized field sampling procedures are as follows: <br />1. Measurements of liquid surface in the well and depth of monitoring well. <br />2. Field check for presence of floating product. <br />3. Purge well prior to collecting samples. <br />4. Monitor groundwater for temperature, pH, and specific conductance during <br />purging. <br />5. Collect samples using Environmental Protection Agency (EPA) approved <br />sample collection devices, i.e., teflon or stainless steel bailers or pumps. <br />6. Transfer samples into laboratory -supplied EPA -approved containers. <br />7. Label samples and log onto chain -of -custody form. <br />8. Store samples in a chilled ice chest for shipment to a state -certified <br />analytical laboratory. <br />EXCELTECH, INC. <br />Groundwater Sampling Protocol <br />Latest Revision: March 28, 1990 <br />