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WATER SAMPLING PROTOCOL <br />Sampling of monitoring wells is performed by Ensco Environmental Services <br />technicians. Field sampling procedures are as follows: <br />1. Measurement of liquid surface elevation and depth of monitoring well. <br />2. Field check for presence of floating product. <br />3. If measurement of floating product is <1/4 inch, a ground water sample <br />is taken. <br />4. Prior to sampling a minimum of four well casings volumes of water is <br />removed. <br />5. During purging, water is monitored for temperature, pH, and specific <br />conductance. <br />6. Samples for analysis are placed in EPA -approved containers. <br />7. Samples are immediately put in a chilled cooler for transportation to a <br />state -certified analytical laboratory. <br />8. Appropriate documentation accompanies the sample at all times. <br />ENSCO ENVIRONMENTAL SERVICES, INC. <br />Water Sampling Protocol <br />Latest Revision: March 7, 1988 <br />I <br />WATER SAMPLING PROTOCOL <br />Sampling of monitoring wells is performed by Ensco Environmental Services <br />technicians. Field sampling procedures are as follows: <br />1. Measurement of liquid surface elevation and depth of monitoring well. <br />2. Field check for presence of floating product. <br />3. If measurement of floating product is <1/4 inch, a ground water sample <br />is taken. <br />4. Prior to sampling a minimum of four well casings volumes of water is <br />removed. <br />5. During purging, water is monitored for temperature, pH, and specific <br />conductance. <br />6. Samples for analysis are placed in EPA -approved containers. <br />7. Samples are immediately put in a chilled cooler for transportation to a <br />state -certified analytical laboratory. <br />8. Appropriate documentation accompanies the sample at all times. <br />ENSCO ENVIRONMENTAL SERVICES, INC. <br />Water Sampling Protocol <br />Latest Revision: March 7, 1988 <br />