Document Type : Technical Note


Department of Water Supply and Environmental Engineering, Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia


The aim of this study was to evaluate the performance of the existing water supply system of Adama Town by considering direct and indirect performance measurements. The paper also investigates the application of technical performance index to evaluate the operational performance of the water distribution system and to easily identify the critical areas in the network. The evaluation carried out based on WaterNetGen tools an extension of EPANET to attain direct performance measurement and Minitab16 software to analyze primary data to achieved indirect performance measurement. Based on water tap flows result, most of the residences got water at night time and were not satisfied with the town water supply services. The greatest minimum slack pressure and velocity occurred in a small area of the network, and the global technical performance index of pressure and velocity were 35.75% and 46.19%, respectively.


1.     Deb, A.K., Hasit, Y.J. and Grablutz, F.M., 1995. Distribution system performance evaluation. American Water Works Association.
2.     Dabgerwal, D.K. and Tripathi, S.K., 2016. Assessment of surface water quality using hierarchical cluster analysis. International Journal of Environment, 5(1), pp.32-44.
3.     Li, S., Wang, R., Wu, W., Sun, J. and Jing, Y., 2015. Non-hydraulic factors analysis of pipe burst in water distribution systems. Procedia Engineering, 119, pp.53-62.
4.     Bello, A.A.D., Alayande, W.A., Otun, J.A., Ismail, A. and Lawan, U.F., 2015. Optimization of the Designed Water Distribution System Using MATLAB. International Journal of Hydraulic Engineering, 4(2), pp.37-44.
5.     Matos, J.P., Monteiro, A.J., Matias, N. and Schleiss, A.J., 2014. Guided evolutionary approaches for redesigning water distribution networks. Procedia Engineering, 89, pp.87-94.
6.     Zischg, J., Mair, M., Rauch, W. and Sitzenfrei, R., 2017. Enabling efficient and sustainable transitions of water distribution systems under network structure uncertainty. Water, 9(715), pp.1-15.
7.     AWWA, 2005. Computer modeling of water distribution systems (Vol. 32). American Water Works Association.
8.     Nigam, U., Tiwari, K., Yadav, S.M., and Mehta, D., 2015. Water Distribution Network Re-Design for Svnit Surat Campus, International Journal of Advance Research in Engineering, Science & Technology, 2(5), pp.1–9.
9.     Muranho, J., Ferreira, A., Sousa, J., Gomes, A. and Marques, A.S., 2014. Technical performance evaluation of water distribution networks based on EPANET. Procedia Engineering, 70, pp.1201-1210.
10.   Muranho, J., Ferreira, A., Sousa, J., Gomes, A. and Marques, A.S., 2012. WaterNetGen: an EPANET extension for automatic water distribution network models generation and pipe sizing. Water Science and Technology: Water Supply, 12(1), pp.117-123.
11.   Sousa, J., Muranho, J., Sá Marques, A. and Gomes, R., 2014. WaterNetGen helps C-town. Procedia Engineering, 89, pp.103-110.