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Protecting the Precious Water Supply in the French Alps

Lac du Bourget, or Bourget Lake, is located in the Northern French Alps, a region famed for its dramatic mountain landscape and clean lakes. Its water supply is supervised by a government committee known as CISALB.



CISALB's area of ​​supervision is that of the Lac du Bourget catchment area. The territory comprises
  • 580 km²,
  • more than 220,000 inhabitants,
  • 64 municipalities,
  • 6 EPCIs,
  • 1,000 km of rivers,
  • and the largest natural lake in France: Lac du Bourget


The CISALB is a committee dedicated to managing aquatic environments, flood prevention, and monitoring the quality and quantity of water resources in the Bourget Lake watershed.


It implements territorial actions, maintains waterways on a preventive basis, and carries out protection and restoration projects for the benefit of water and aquatic environments in the territory.


As part of one of their analysis campaigns, they turned to Aqualabo to rent their LOG-AQUA communicating recorder, associated with their conductivity sensor, to monitor the quality of one of the tributaries of the Bourget lake. Aqualabo needed the best equipment on the market and turned to Ayyeka to supply the recorder (known as a Wavelet) and the FAI Platform to manage data and deliver actionable insights.


Not having the possibility to come on-site during the entire 8-week rental period, and being located in an isolated place, the autonomous GSM solution LOG-AQUA (also known as Ayyeka's Wavelet datalogger) proved to be the best solution for the customer for remote monitoring conductivity fluctuations. The Wavelet is securely fastened to a tree near the tributary, and a sensor in the water connects to the Wavelet. Data is collected and transmitted using cellular data (no internet connection is required, overcoming a challenge in rural areas.) Ayyeka's FAI Platform organizes the data into actionable insights. Alerts are sent in case of anomalies. Thresholds set by the stakeholder determine these alerts.


The sensors measure conductivity. What can conductivity tell us about the condition of water? Significant changes (usually increases) in conductivity may indicate that a discharge or some other disturbance source has decreased the water body's relative condition or health has decreased the relative condition or health of the water body and its associated biota.


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