The Nielsen Environmental Field School

Selection and Operation of Ground-Water Purging & Sampling Devices Training Courses

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There are a lot more useful and appropriate purging and sampling device options available than the bailer! Learn what types of sampling devices are appropriate for a variety of analytical parameters, and which devices should never be used for some parameters. This series of 2 modules provides a detailed discussion of a wide range of devices available for purging and sampling ground-water monitoring wells, including their principles of operation, operational characteristics, materials of construction, and limitations.

The discussion will provide a framework for evaluating any device to determine its suitability and appropriateness for site-specific and individual well-specific applications. Field videos are included within each module to explain the operation and use of a variety of sampling devices. While you may opt to take just one of these modules, it is strongly recommended that you take both modules in the prescribed order if you want comprehensive coverage of the subject.

Module GWM–20 (Total Length: 42 minutes)
Purging and Sampling Device Selection Criteria; Operational Characteristics, Applications and Limitations of Grab Samplers, Suction-Lift Pumps & Electric Centrifugal Submersible Pumps

  • Purging and Sampling Device Selection Criteria
  • Discussion of ASTM Standard D 6634 on Selection of Purging and Sampling Devices for Ground-Water Monitoring Wells
  • Impacts of Sampling Devices on Sample Chemistry
  • Overview of Available Sampling Devices -  Operational Characteristics and Limitations
    • Types of Devices Available
      • Grab Samplers
      • Peristaltic and Suction-Lift Pumps
      • Electric Centrifugal Submersible Pumps

Total CEUs for Module GWM-20: 1.0 CEU

Module GWM–21 (Total Length: 58 minutes)
Operational Characteristics, Applications and Limitations of Positive Displacement Pumps (Gear-Drive Electric Submersible Pumps, Double-Acting Piston Pumps, Bladder Pumps and Gas-Drive Pumps) and Inertial-Lift Pumps

  • Overview of Available Sampling Devices -  Operational Characteristics and Limitations (continued)
    • Types of Devices Available
      • Positive Displacement Pumps
        • Electric Gear-Drive Submersible Pumps
        • Double-Acting Piston Pumps
        • Bladder Pumps
        • Gas-Drive Pumps
      • Inertial-Lift (Tubing/Check Valve) Pumps

Total CEUs for Module GWM-21: 1.0 CEU

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