EXPERTS IN GEOSCIENCE
Groundwater monitoring can be required for many different reasons, strategic monitoring to obtain background water quality information, defensive monitoring to provide information on a known or suspected source of contamination, and Investigative monitoring to locate and identify sources of contamination.
At GWG we have a few different methods we employ in the sampling of groundwater. The most common is low flow sampling, this involves the use of a pump set at a low speed, typically less the 0.5l/min, to pump the water out of a borehole and through a flow cell. The flow cell contains various instruments to measure set field parameters which are recorded on a continuous basis, when the parameters stabilize the sample is taken. This technique reduces the amount of draw down in the well, and reduces the amount of waste water that is produced.
Groundwater monitoring is often required as part of a Site Protection and Monitoring Programme (SPMP).