The Complete Ground Water Monitoring Field Course Course Outline |
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Day 1
Optimizing Monitoring Well and Screen Placement
- Establishing Objectives, Data Needs and Uses
- Assembling and Evaluating Existing Information
- Developing an Initial Conceptual Site Model
- Conducting a Detailed 3-Dimensional Site Characterization Program
- Developing a Refined Conceptual Model
- Selecting Optimum Well or Multi-Level Monitoring System Locations
Environmental Drilling Technology for Monitoring Well Installation
- Differences Between Environmental Drilling and Other Drilling
- Factors to Consider in Selecting a Drilling Method
- Descriptions of Common Environmental Drilling Methods
- Casing Advancement Methods
- Fluid Circulation Methods
- Auger Methods
- Direct-Push Methods
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Day 2
Ground-Water Monitoring Well Design and Construction - Part 1
- ASTM Standard D5092 on Monitoring Well Design and Construction
- Objectives and Purposes of Monitoring Wells
- Potential Sources of Chemical Interference
- Selection of Well Casing and Screen Materials
Ground-Water Monitoring Well Design and Construction - Part 2
- Factors Influencing Selection of Well Diameter
- Types and Designs of Well Screens
- Importance of Selecting an Appropriate Well-Screen Length
- Multi-Level Monitoring Systems - Design and Construction
Ground-Water Monitoring Well Design and Construction - Part 3
- Selecting the Proper Filter Pack Grain Size and Well-Screen Slot Size
Field Session #1
- Station 1 - Site Characterization, Soil Sampling and Well Installation with Direct-Push Technology
- Introduction to Direct-Push Rigs and Tooling
- Soil Sampling with a Direct-Push Rig
- Ground-Water Sampling with a Direct-Push Rig
- Installation of a Single Short-Screened Pre-Packed Well
- Station 2 - Site Characterization, Soil Sampling and Ground-Water Monitoring Well Installation Using a Sonic (or Hollow-stem Auger) Drilling Rig
- Objectives of the Field Session
- Introduction to Sonic (or Hollow-Stem Auger) Rigs and Tooling
- Continuous Soil Sampling
- Installation of a Ground-Water Monitoring Well
- Comparison of Sonic Drilling and Direct-Push Technologies for Well Installation
- Station 3 - Demonstration of a Multi-Level Monitoring & Sampling System
- Objectives of Multi-Level Monitoring Programs
- Overview of the Components of Multi-Level Monitoring Systems
- Installation Considerations
- Sample Collection Methods
- Applications of Multi-Level Monitoring Systems
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Day 3
Ground-Water Monitoring Well Design and Construction - Part 4
- Selection and Installation of Annular Seal Materials
- Surface Protection Measures
Ground-Water Monitoring Well Design and Construction - Part 5
- Alternative Well Completions
- Direct-Push Well Installation
Monitoring Well Development Methods
- ASTM Standard D5521 on Development of Monitoring Wells
- Objectives and Purposes of Well Development
- Applications, Advantages and Limitations of Development Methods
- When and How Long to Develop Monitoring Wells
Planning and Executing a Successful Ground-Water Sampling Event
- Components of a Ground-Water Sampling Event
- Sampling Event Planning and Preparation
- The Ground-Water Sampling & Analysis Plan (SAP)
- Objectives and Purposes of the SAP
- Components of a SAP & Design Options
- Making the SAP User-Friendly
- Addressing the Analysis Portion of the SAP
- Understanding PPM vs. PPB vs. PPT
- Standard Operating Procedures to Include in the SAP
- Timing of Ground-Water Sampling Events
- Office Preparation for Sampling
Field Equipment Decontamination
- Objectives of Field Equipment Decontamination
- Available Decontamination Methods, Including ASTM Method D5088
- Problems Associated with Chemical Decontamination
- Verifying the Effectiveness of Decontamination Methods
Field Quality Assurance/Quality Control Programs
- The Difference Between Quality Assurance and Quality Control
- The Importance of Field QA/QC
- Typical Components of Field QA/QC Programs
- The Role of QC Samples in Ground-Water Sampling Programs
- Types of QC Samples to Collect, and How and Why to Collect Them Properly
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Day 4
Water-Level and Product Thickness Measurement
- Uses of Water-Level and Product Thickness Data
- Accuracy and Precision in Water-Level Measurement
- Sources of Error in Water Level and Product Thickness Measurement
- Techniques and Equipment Available for Water-Level Measurement
- Options for Determining Product Thickness in Monitoring Wells
The Science Behind Ground-Water Sampling
- Objectives and Purposes of Ground-Water Sampling
- Definition of "Representative" Sample
- Factors Affecting the Representative Nature of Ground-Water Samples
- Sampling Point Placement, Design, Installation, Development and Maintenance
- Formation and Well Hydraulics
- Chemistry of the Water Column Above and Within the Well Screen
- Well Purging and Sampling Methods and Associated Issues
Selection and Operation of Ground-Water Purging and Sampling Devices
- Purging and Sampling Device Selection Criteria
- Impacts of Sampling Devices on Sample Chemistry
- Dedicated vs. Designated vs. Portable Sampling Equipment
- Overview of Available Sampling Devices, Their Operational Characteristics and Limitations
Conventional Purging and Sampling Methodologies
- Objectives of Purging
- Comparison of Traditional Strategies for Purging High-Yield Wells
- Problems with Traditional Purging Methods
- Placement of the Purging Device within the Water Column
- Approaches to Purging Low-Yield Wells
Low-Flow Purging and Sampling and No-Purge Sampling
- Low-Flow Purging and Sampling
- Fundamental Concepts
- Requirements for Equipment and Flow Rates
- Well Hydraulics During Low-Flow Purging and Sampling
- Procedures Used for Low-Flow Purging and Sampling
- Dedicated vs. Portable Sampling Equipment
- Advantages and Limitations
- No-Purge Sampling
- Fundamental Concepts
- Equipment Used for No-Purge Sampling
- Procedures Used for No-Purge Sampling
- Advantages and Limitations of No-Purge Sampling
Field Parameter Measurement
- Parameters Traditionally Measured and Why They May Not Be Meaningful
- More Meaningful Parameters to Measure During Purging
- Significance and Use of Turbidity as a Field Parameter
- Instrumentation Options for Field Parameter Measurement
- Common Errors in Field Parameter Measurement
- Calibration of Field Parameter Analysis Instrumentation
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Day 5
Ground-Water Sample Filtration & Preservation
- Objectives and Purposes of Sample Filtration
- Naturally Occurring vs. Artifactual Particulate in Wells
- Overview of Filtration Methods including ASTM Standard Method D-6564
- Which Parameters Could Be Filtered and Those that Should Not Be Filtered
- Filter Preconditioning - Objectives and Procedures
- Field Preservation of Ground-Water Samples
- Objectives and Purposes of Sample Preservation
- Physical vs. Chemical Sample Preservation Techniques
Field Session #2: Ground-Water Sampling Methods
- Station 1: Conventional Sampling Practices & No-Purge Sampling
- Overview of Health & Safety & Housekeeping Practices
- Water Level Measurement
- Conventional Well-Volume Purging & Sampling
- Sample Collection & Handling
- Sample Filtration & Preservation
- Preparation of Samples for Shipping
- No-Purge Sampling Using the Passive Diffusion Bag Sampler (PDBS)
- Station 2: Low-Flow Purging & Sampling and No-Purge Sampling
- Equipment Setup for Low-Flow Purging
- Determining Drawdown at Various Flow Rates
- Determining Stabilization of Water Chemistry
- Collecting Water Samples for VOC Analysis
- No-Purge Sampling Using the HydraSleeve
Sample Handling and Shipment
- Preparation of Samples for Shipment to the Lab
- Sample Shipment Options and Considerations
- Compliance with DOT and IATA Shipping Regulations
Sampling Event Documentation
- Written vs. Electronic vs. Audio-Visual Recording of Field Activities
- Do's and Don'ts When Documenting Field Observations & Measurements
- How to Make Sure Your Field Records are Admissible in Court
- Sample Security & Chain of Custody
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Each course is slightly modified to incorporate local technical assistance during our field sessions. A detailed course syllabus, which includes start and finish times and detailed course content, will be provided to all course registrants as part of the registration confirmation package.
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