Hydro-Logic Services

Hydro-Logic Services

Water Resources Monitoring Services



The provision of hydrometric services to water companies for water resources management is one of the most active areas of work for HLS. The data that we collect are used to both manage reserves and to ensure compliance with environmental and regulatory standards. Our largest long term monitoring contract is for Dwr Cymru Welsh Water (DCWW), where we operate a network of over 130 sites, of which about 100 are telemetered. HLS have provided this data to DCWW since 1999. The data from these sites are used by DCWW Water Resource Managers for operational decision making, regulatory compliance and water resource planning purposes. Our contract with DCWW requires us to deliver data in accordance with a strict regime of Key Performance Indicators, in order to ensure that the data quality is sufficient for their purposes.

We have also recently been appointed, as sole supplier, to a 10 year framework with Scottish Water which is designed to allow them to install long-term monitoring sites at key locations. This monitoring ensures compliance with the release of minimum prescribed flows and also allows reservoir yield assessments to be updated.

The applications include monitoring of:

  • Reservoir Level
  • Compensation Flow
  • Abstraction
  • Groundwater
  • Rainfall

Data are transmitted from, some often quite remote sites, either directly into the water company telemetry servers or to the Timeview Telemetry web-based system.

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