State Water Resources Research Institute Program


Project ID: 2011GU199B
Title: Reconfiguration of Saipan's Water Distribution System Model
Project Type: Research
Start Date: 3/01/2011
End Date: 2/29/2012
Congressional District: N/A
Focus Categories: Models, Water Supply, Management and Planning
Keywords: distribution systems, model studies, water system operation, water production, water demand
Principal Investigators: Khosrowpanah, Shahram (WERI University of Guam); Leroy F. Heitz; Iglecias, Mariano
Federal Funds: $ 27,252
Non-Federal Matching Funds: $ 0
Abstract: Water hours and low delivery pressure have long been a part of the daily lives of the people in the islands of the Western Pacific. In Saipan, Commonwealth of the Northern Mariana Islands (CNMI), large investments have been made in system improvements, but delivery problems still exist. A stated goal of the CNMI government is to provide 24-hour water to all residents served by the Commonwealth Utilities Corporation (CUC) water system. Recently, Stipulated Orders have been filed in the US District Court for the Northern Mariana Islands to compel the utility company to adhere to federal regulations governing water, sewer, and power (Eaton, 2008). As part of this act, CUC should develop a hydraulic model of the water distribution system that will be used for system improvement, system operation, and future system expansion.

Researchers at the University of Guam Water and Environmental Research Institute of the Western Pacific (WERI) developed computerized models of each of the fifteen sub-regions of the CUC water system using the Haestad WaterCAD water system modeling program. Later on, they developed a source, transmission and storage model of the Saipan water system, and a GIS data base of the system. Recently CUC has been added many additional sources of water, new tanks and pipes have been added to the system, and system operation has been changed. To comply with the stipulated order and enable CUC to provide a 24-hour water service, there is a need to reconfiguring the skeleton model of the water distribution system reflecting new changes in physical and operation of the system. The goal of this project is to:

The benefit to the CUC will be the ability to: a) determine the amount of water that is being lost through the system (un-accounted for), b) implement various operational systems for transferring water among the 15-sub region for providing 24-hour water service to the costumers, and 3) comply with stipulation order.

Progress/Completion Report, 2011, PDF

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