Direct-Sense probing

To investigate possible environmental damages we conduct Direct-Sense-Probing with the Geoprobe® direct push and rotary rigs LT54, 6620DT and 7822DT using the following probing techniques:

  • MIP-probing (Membrane Interface Probe)
  • EC-probing (Electrical Conductivity)
  • HPT-probing (Hydraulic Profiling Tool)


With our offered probing techniques (MIP, EC, HPT) we determine the geological and hydrogeological characteristics and the distribution of organic contaminants in the subsurface on site while the in-situ probing is conducted.

Direct-Sense probing strategies to determine environmental damages in form of point and plume contaminations can be dynamically adjusted, based on the live data of the probing and thus a reduction of time and costs of the investigation compared to conventional techniques can be achieved.

Direct-Push probing

Sensatec conducts Direct-Push-probing with the Geoprobe® rigs LT54, 6620DT and 7822DT. Mainly the technique “lost cone” is used, which is a fast and economical method to install infiltration-, injection- and monitoring points in groundwater or the unsaturated soil zone.


We offer:

  • Liner probing with the Geoprobe® techniques MacroCore und DualTube
  • Groundwater probing with the Geoprobe® Profiler Probe SP16
  • Soil air probing
  • Injection lances

Beyond that it is possible to inject additives (e.g. for groundwater remediation purposes) via the probing rods using special injectors. MIP-probing in advance gives the exact points/layers in which the additives have to be injected. This sequence of work enables the operator to implement a multitude of injection points and layers in a short period of time.


We are in command of tested and proven sophisticated drilling and injection technology. Especially in the case of in-situ remediation, it is crucial that the injection system is customized according to the aquifer‘s complexity. We offer the following system component for meeting these demands:

  • Multi-level injection systems
  • Pressure-resistant, oxidant-resistant fluid injection systems
  • Profiler probe
  • Delivery and installation of in-situ sensor technology
  • Gas lance construction
  • Implementation of injection wells

Sensatec is equipped with comprehensive knowledge on both the application of displacement drilling, dry drilling (hollow-core drill leverage or piped) and sonic drill technology.

Conventional drilling services

Besides the above mentioned techniques, Sensatec offers conventional drilling services such as:

  • Window sampling
  • DPH-probing (heavy driving rod)
  • Dry drilling with hollow drill auger (max. diameter 320 mm)
  • Installation of wells and monitoring wells

The determined soil profiles are documented with the GeODin software. The databases containing the soil profiles are naturally handed over to the client or the responsible consulting engineers for further processing.

Dipl.-Ing. Mark Zittwitz
Telefon (030) 8094 1576

Dipl.-Kfm Dirk Meyer
Telefon (02204) 9726-0