Saltwater Intrusion
Monitoring Project
RS Hydro was recently involved in a saltwater intrusion monitoring project throughout a major aquifer system in South England.
Due to an increasing population, the demand for water has also increased which is making over abstraction a growing worry. One impact of over abstraction is saltwater ingress. This is a serious and costly impact as any potable water aquifers affected must undergo expensive desalination processes.
The project involved measuring sea water ingress by monitoring Electrical Conductivity (EC) to follow possible saltwater plumes through the aquifer system.
It was deemed that EC readings should be taken from two separate depths along with a single depth measurement, due to the makeup of the aquifer and suspected pathways throughout. All outputs needed to be an analogue 4-20mA.
The solution that RS Hydro provided was to install the CT2X (INW) to monitor conductivity and PTX1830 (GE Druck) to give an accurate level reading.
The sensors installed were constructed from high grade titanium and Delrin – essential in a potable water monitoring program.
This integrated network was provided through the use of RS Hydro’s
unique combination of sensors and third party telemetry systems.
7th October 2009
