The paper describes a step-by-step approach to the implementation of procedures for ensuring efficient operation of the Loch Lomond Water Supply Scheme. The implementation involved the installation of a Telemetry and Telecontrol system to allow real-time operational control of the full scheme to be exercised from the Board's Headquarters at Balmore. On site Pump Efficiency Determination was carried out which enabled technical appraisals to be made and rational decisions taken on which pumps required to be used to produce water at minimal cost. The energy costs were further reduced by a computer based scheduling program which used the results of the Pump Efficiency Tests.