Purge Volumes in Groundwater Sampling – Part 2

Tech Tips / May 18, 2017

Differences Between Purge Volume Calculations In Peter Dumble’s blog (Part 1), he presented some notes on purge volume methods and indicated those which are supported by science and those which are included in guidance. In this blog, Dumble takes a hard look … Continue

Screen Volume and Low Flow Groundwater Sampling

Tech Tips / May 18, 2017

Fully or Partially Purged – Does It Matter? When taking a groundwater sample from a well or borehole, understanding just where the water sample originates within the groundwater body is critical, particularly when contaminants are present. Research by Lindsay McMillan … Continue

Optical DO Use in the State of New Jersey

Tech Tips / May 10, 2017

OMGaretheyhappy Who? Just everyone who must do low-flow sampling in New Jersey, that’s all! Why? Well, before I tell you the great news New Jerseyans are celebrating, let’s all just take a moment to bask with them in their happiness. … Continue