Ground-Water Monitoring Well Design and Construction

Topic: Ground-Water Monitoring Well Design and Construction

If you think there is a simple cookbook, one-size-fits-all approach to building monitoring wells that will consistently produce sediment-free, representative ground-water samples, you’re wrong!  This series of 4 modules will demonstrate why by covering the complex topic of monitoring well design and construction from the bottom (the well screen) to the top (surface completion) and everything in between.  Discover how to correctly design and build a monitoring well that will meet site-specific objectives and that will produce representative, sediment-free samples for the life of the monitoring program.  Learn how to avoid common errors in well design that end up costing you time and money later.  Field video is included at the end of the final module to explain how to install a monitoring well using direct-push technology.  While you may opt to take just one or two of these modules, it is strongly recommended that you take all 4 modules in the prescribed order if you want comprehensive coverage of the subject.

Module GWM–10 (Total Length: 58 minutes) Price: $159.00  To Register, Sign in to Your E-School Account

Objectives and Purposes of Monitoring Wells; Sources of Chemical Interference in Well Construction; Selection of Well Casing and Screen Materials; Methods for Joining Well Casing and Screen

  • Discussion of ASTM Standard D 5092 on Ground-Water Monitoring Well Design and Construction
  • Objectives and Purposes of Monitoring Wells
  • Potential Sources of Chemical Interference in Drilling and Well Construction
  • Selection of Well Casing and Screen Materials
    • PVC and Other Plastics
    • Mild Steel, Carbon Steel, Galvanized Steel
    • Stainless Steel
  • Types of Joints Used for Casing and Screens

Total CEUs for Module GWM-10: 1.0 CEU

Module GWM–11 (Total Length: 63 minutes) Price: $159.00  To Register, Sign in to Your E-School Account

Optimizing Well Diameter; Types and Designs of Well Screens; Selecting Filter Pack Material Size and Well-Screen Slot Size; Optimizing Well Screen Length; Options for Monitoring Multiple Target Monitoring Zones

  • Factors Influencing Selection of Well Diameter
  • Types and Designs of Well Screens
    • Machine-Slotted Casing
    • Continuous-Wrap, Wire-Wound (V-Wire) Screens
  • Principles of Proper Well Intake Design
  • Selecting the Proper Filter Pack Grain Size
  • Determining Optimal Well-Screen Slot Sizes
  • Step-by-Step Filter-Pack and Well-Screen Design for Site-Specific Conditions
  • Importance of Selecting an Appropriate Well Screen Length
  • Negative Issues Associated With Long Well Screens
  • Options for Monitoring Multiple Target Monitoring Zones
    • Multiple Vertically Spaced Short-Screened Wells (Well Clusters)
    • Multiple Completions in a Single Borehole (Well Nests)
    • Multiple-Screened Wells
    • Multi-Level Monitoring Systems

Total CEUs for Module 11: 1.0 CEU

Module GWM–12 (Total Length: 52 minutes) Price: $159.00  To Register, Sign in to Your E-School Account

Selection and Installation of Filter-Pack Material Type; Selection and Installation of Effective Annular Seal Materials

  • Selection and Installation of Filter-Pack Materials
    • Characteristics of an Appropriate Filter-Pack Sand
    • Techniques for Filter-Pack Installation
  • Pre-Packed Well Screens – Advantages and Limitations
  • Selection and Installation of Annular Seal Materials
    • Bentonite Materials
      • Bentonite Pellets, Chips, Granules and Grout
    • Neat Cement Grouts
      • ASTM C-150 Portland Cement
      • Cement Additives and Their Properties

Total CEUs for Module GWM-12: 1.0 CEU

Module GWM–13 (Total Length: 47 minutes) Price: $159.00  To Register, Sign in to Your E-School Account

Surface Protection for Monitoring Wells; Alternate Well Completions; Direct-Push Well Installation

  • Surface Protection Measures
    • At-Grade and Below-Grade Completions
    • Above-Grade Completions
  • Alternative Well Completions
    • Telescoping Well Completions
    • Bedrock Completions
  • Direct-Push Well Installation
    • Proper Installation Techniques for Direct-Push Wells With Pre-Packed Well Screens

Total CEUs for Module GWM-13: 1.0 CEU