Author(s)

H. Alhassan, G. Naser^*, A. S. Milani, S. Nunoo

Okanagan School of Engineering, University of British Columbia, Kelowna, Canada.

This study developed a systematic decision-making process for water supply capacity expansion using the analytic hierarchy process. The decision-making criteria were categorized into environmental, economic, technical and socio-cultural aspects. Capacity expansion of three water resources (Kpong, Weija and Teshie plants) of Accra-Tema Metropolitan Area (Ghana) was studied as a test case. The research resulted in the environmental criterion with the highest priority weight (52.4%), followed by the economic (30.6%), technical (11.3%) and socio-cultural criteria (5.8%). The overall analysis ranked the Kpong plant with a score of 36.1% followed by the Weija and Teshie plants with scores 33.8% and 30.2%, respectively.

Water Supply Capacity Expansion, Analytic Hierarchy Process, Sensitivity Analysis, Accra-Tema Metropolitan Area

Alhassan, H. , Naser, G. , Milani, A. and Nunoo, S. (2015) Decision Making for Capacity Expansion of Water Supply Systems. Journal of Water Resource and Protection, 7, 1280-1290. doi: 10.4236/jwarp.2015.716104.