Contaminated Groundwater Flow Measurement

Flowing Waters - Irrigation & Drainage Systems


  • Trapezoid channel 1.5 x 0.5 m (w x h)
  • Partially filled
  • Concrete channel bottom, embankment reinforced with water engineered stones
  • Remote measurement place


Definition of tasks

  • Flow measurement in partially contaminated groundwater from former tar factory site for proof purposes
  • No power supply available
  • No solar power supply or open sensors possible due to the risk of vandalism
  • Long readout cycles of saved measurement data


  • The portable flow measurement system Type PCM 4 with rechargeable battery and memory card data storage has been used.
  • Due to the slow fluctuation of readings, a measuring interval of 30 minutes has been selected.
  • A combined flow velocity / level sensor has been mounted on the channel bottom.


  • Easy and quick sensor installation
  • No visible sensors
  • Long-life measurement without battery replacement or data backups

Used products

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