Taunsa Barrage facilitates the flow of irrigation water from the Indus River in three major canals, Muzaffar Ghar Canal (8,300 cusecs), Dera Ghazi khan Canal (89,000 cusecs) and Taunsa Panjnad (T-P) Link Canal (12,000 cusecs) supplying some six million acre feet of irrigation water to cultivated lands in districts of Muzaffar Ghar ,Dera Ghazi khan ,Rajanpur, Rahim Yar Khan and Bahawalpur during Rabi and Kharif seasons.
In order to establish the baseline conditions for water quality and to provide benchmark for the monitoring of the physical and biological aspects of environment, both surface water and ground water quality is being analyzed during the restoration and rehabilitation of the Barrage. Samples for surface water as well as ground water are being collected, tested and analyzed for physical, biological and chemical elements in order to determine its suitability for aquatic flora and fauna, irrigation purposes as well as human consumption.