Methodology for Hydrogeochemical Sampling to Characterise Groundwaters in Crystalline Bedrock: Developments Made within the Swedish Radwaste Programme

Figure 3

Outline of the integrated system comprising a carriage/container with downhole equipment (umbilical hose, inflatable packers, pump, downhole measurement probe, and downhole sampling unit) and facilities for lowering and raising this equipment. This system is placed over the borehole (see photo), and the container’s indoor temperature is adjusted to maintain the temperature of the groundwater in the section to be investigated.