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a meniscus over the mouth of the vial to eliminate headspace prior to capping. An in-line filter must be used for filtered <br /> metal samples. <br /> DECONTAMINATION <br /> 17.Non-Dedicated System—Remove submersible pump and tubing from well. Disconnect tubing and reinsert down well or <br /> store in a baggie with Site and Well I.D. labeled. Non-dedicated submersible pumps will be run in 20 gal.bucket of <br /> detergent water,followed by 20 gal.bucket of rinse water. Pump exterior will be hand washed at each step. <br /> 18. Peristaltic pu mp—Disconnect tubing at pump and hang in well for subsequent sampling events. Double or triple loop <br /> tubing so you have a tight insertion. <br /> 19. Before lockin g the monitoring well,measure and record the total depth of the well. Measure a second time for <br /> confirmation. Measurements must be within 0.01 feet. <br /> 3 <br />