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KLEINFELDER <br /> 5. Physical parameters (pH, electrical conductivity, and temperature) are monitored <br /> for stability during urging. The physical parameter measurements are recorded on <br /> mple <br /> purge-and-saogs, along with the time and volume of water purged at each <br /> measurement. <br /> 6. Samples are collected with a disposable bailer or bladder pump into appropriately <br /> prepared bottles provided by the analytical laboratory. <br /> ' 7. Samples for metals analysis are usually filtered in the field at the time of collection. <br /> 8. Samples are immediately labeled and placed in an iced sample container. At the <br /> end of the day, the samples are delivered to the analytical laboratory under chain- <br /> of-custody control. <br /> 1 <br /> 1 <br /> FR1-92-15 Page A-3 <br /> ' Copyright 1992 Kleinfelder,Inc. <br />