“Klambu Kudu” raw water channel is a 40.558 km channel which conveys raw water from Klambu Weir to Kudu Water treatment plant (WTP). The water flow measured in the Intake at Klambu Weir and at Kudu WTP has some discrepancies to the planned. This discrepancies are partly caused by use of different types of channel on various locale conditions. This research describes the selection to the policy maker in deciding which raw water channel type suitable for each area by using Decision Making Supporting System (DSS) with an approach of
Analytic Hiearchy Process (AHP) Method. It integrating the criteria of construction cost, operation and maintenance cost, the ease of operation and maintenace implementation as well as benefit/profit
