Topic: No Purge Sampling

Traditional ground-water sample collection methods, including well-volume purging and sampling and purging a well to dryness, are subject to significant sources of  bias and error that commonly result in either over- or under-estimation of actual sample concentrations and poor precision and accuracy.  It is thus exceedingly important to use more up-to-date methods, like no-purge sampling, that have been demonstrated by many field research studies to produce higher quality samples so all stakeholders can have much higher confidence in sample analytical results.  This module comprehensively covers the relatively new methodology referred to as no-purge sampling, and explains why and how no-purge sampling always produces dramatically improved and more consistent sampling results AND significant cost savings compared to conventional purging and sampling methods.  Field videos are included within this module to explain the equipment, practices and procedures required to implement no-purge sampling.

Module GWM–24 (Total Length: 40 minutes) Price: $159.00  Sign in to Your E-School Account to Register 

Practices and Procedures for No-Purge Sampling

  • Fundamental Concepts – What it is, How it Works
  • Understanding the Concept of Equilibrated Grab Samplers
  • Equipment Used for No-Purge Sampling
  • Procedures Used for No-Purge Sampling
  • Advantages and Limitations of No-Purge Sampling

Total CEUs for GWM-24: 1 CEU