Chapter
May 31, 2018
World Environmental and Water Resources Congress 2018

Financial Management of a Hypothetical Water Network Using System Dynamics

Publication: World Environmental and Water Resources Congress 2018: Hydraulics and Waterways, Water Distribution Systems Analysis, and Smart Water

ABSTRACT

In the recent years, many metropolitan cities are facing economic problems with the rehabilitation of their water distribution system. With time, the failure rates and leakage in the pipes will increase even with some of the rehabilitation efforts taking place. Thus, water utilities should consider seeking strategies for water pricing and the system rehabilitation to prevent their existing distribution network from deteriorating. The objective of this study was to understand how different management techniques implemented on a hypothetical water distribution networks would result in a sustainable management of water infrastructure. Using system dynamics approach, a simulation model was developed to study the impacts of management strategies on the distribution network functionality and financial health over a 100-year time horizon. The model considers the interactions among distribution network sector (existing water network differentiated by age), finance sector (user fee, profit/loss account, debt, and available cash), and lastly, consumer demand sector (change in water demand due to population). The study exhibited a comprehensive analysis for a utility on achieving financial sustainability with a comparatively lower user fees with adaptation of rehabilitation measures. Results of the current study can be used by water utilities to analyze different approaches for sustainable financial and infrastructure management.

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7. ACKNOWLEDGMENT

We would like to thank Rehan et. al., (2011) for the development of the model and making it publicly available.

8. REFERENCE

Ahmad, S. (2016). “Managing Water Demands for a Rapidly Growing City in Semi-Arid Environment: Study of Las Vegas, Nevada.” Int. J. Water Resour. Arid Env., 5(1), 35-42.
Ahmad, S., & Prashar, D. (2010). “Evaluating Municipal Water Conservation Policies Using a Dynamic Simulation Model”. Water Res. Management, 24(13), 3371-3395.
Ahmad, S., & Simonovic, S. P. (2000). “System dynamics modeling of reservoir operations for flood management.“ J. of Computing in CE., 14(3), 190–198.
Ahmad, S., & Simonovic, S. P. (2001). “Modeling Dynamic Processes in Space and Time--A Spatial System Dynamics Approach”. World Water and Environmental Resources Congress. Orlando, FL. May 20-24, 2001. pp. 1-20. https://doi.org/10.1061/40569(2001)88
Ahmad, S., Simonovic, S.P., (2004). “Spatial system dynamics: new approach for simulation of water resources systems.” J. of Computing in Civil Engi- neering, 18(4), 331-340.
Ahmad, S., Simonovic, S.P., (2006). “An intelligent decision support system for management of floods.” Water Resources Management, 20(3), 391-410.
Amoueyan, E., Ahmad, S., Eisenberg, J. N. S., Pecson, B., & Gerrity, D. (2017). “Quantifying pathogen risks associated with potable reuse: A risk assessment case study for Cryptosporidium.” Water. Res., 119, 252–266.
Boulos, Pf et al. “Real-Time Modeling of Water Distribution Systems: A Case Study.” J. AWWA, vol. 106, no. 9, 2014, pp. E391–E401.
Bukhary, S., Ahmad, S., & Batista, J. (2017). “Analyzing land and water requirements for solar deployment in the Southwestern United States.” Renewable Sustainable Energy Rev., 82 (April 2017), 3288–3305.
Burnside (2005). Water and wastewater asset cost study. Ministry of Public Infrastructure Renewal Ontario, prepared by R. J. Burnside & Associates Limited. Retrieved from http://www.ontla.on.ca/library/repository/mon/11000/254972.pdf
Chen, C., Ahmad, S., Kalra, A., & Xu, Z. (2017). “A dynamic model for exploring water-resource management scenarios in an inland arid area: Shanshan County, Northwestern China.” J. of Mountain Sc., 14(6), 1039-1057
Chung, Gunhui, Kim, Joong, &Kim, Tae-Woong (2008). “System dynamics modeling approach to water supply system”. KSCE J. of Civil Engineering, 12(4), 275-280.
CWWA 1998 rev. 1998 Municipal Water and Wastewater Infrastructure: Estimated Investment Needs 1997–2012. Canadian Water and Wastewater Association, Ottawa. Available from: http://www.cwwa.ca/pdf_files/MWWW%20Investment%20Needs%201997-2012.pdf
Dandy, G. C., Engelhardt, M. O. “Multi-Objective Trade-Offs between Cost and Reliability in the Replacement of Water Mains”. (2006). J. of Water Res. Planning and Management, 132(2), 79-88.
Dawadi, S., & Ahmad, S. (2012). “Changing climatic conditions in the Colorado River Basin: Implications for water resources management.” J. Hydrol., 430–431, 127–141.
Dawadi, S., & Ahmad, S. (2013). “Evaluating the impact of demand-side management on water resources under changing climatic conditions and increasing population.” J. Environ. Manage., 114, 261–275.
Giustolisi, O., Laucelli, D., & Savic, D. (2006). “Development of rehabilitation plans for water mains replacement considering risk and cost-benefit assessment.” Civil Engineering and Environ. Systems, 23(3), 175-190.
Herz, R. K. “Exploring Rehabilitation Needs and Strategies for Water Distribution Networks.” J. of Water Supply: Research and Tech. - AQUA, IWA Publishing, 1 Sept. 1998, aqua.iwaponline.com/content/47/6/275.
Malm, A., Svensson, G., Bäckman, H., & Morrison, G. M. (2013). “Prediction of water and wastewater networks rehabilitation based current age and material distribution.” Water Science & Techn.: Water Supply, 13(2), 227.
Mirchi, A., Madani, K., Watkins, D., & Ahmad, S. (2012). “Synthesis of System Dynamics Tools for Holistic Conceptualization of Water Resources Problems.” Water Resour. Manage., 26(9), 2421–2442.
Moumouni, Y. (2014). “A System Dynamics Model for Energy Planning in Niger.” Int. J. Energy and Power Eng., 3(6), 308.
Nussbaum, E. M., Owens, M. C., Sinatra, G. M., Rehmat, A. P., Cordova, J. R., Ahmad, S., and Dascalu, S. M. (2015). “Losing the Lake: Simulations to Promote Gains in Student Knowledge and Interest about Climate Change.” Int. J. of Env.and Sc. Edu., 10(6), 789-811.
Qaiser, K., Ahmad, S., Johnson, W., & Batista, J. (2011). “Evaluating the impact of water conservation on fate of outdoor water use: A study in an arid region.” J. Environ. Management, 92(8), 2061–2068
Qaiser, K., Ahmad, S., Johnson, W., & Batista, J. R. (2013). “Evaluating water conservation and reuse policies using a dynamic water balance model.” Environ. Manage., 51(2), 449–458.
Ranjeet Thakali, Ajay Kalra, & Sajjad Ahmad. (2016). “Understanding the Effects of Climate Change on Urban Stormwater Infrastructures in the Las Vegas Valley”. Hydrology, 3(4), 34.
Rehan, R., Knight, M. A., Haas, C. T., & Unger, A. J. A. (2011). “Application of system dynamics for developing financially self-sustaining management policies for water and wastewater systems.” Water Research, 45(16), 4737-4750.
Rehan, R., Knight, M., Unger, A., & Haas, C. (2014). “Financially sustainable management strategies for urban wastewater collection infrastructure - development of a system dynamics model.” Tunnelling and Underground Space Techn., 39, 116-129.
Rehan, R., Unger, A., Knight, M., & Haas, C. (2014). “Financially sustainable management strategies for urban wastewater collection infrastructure - implementation of a system dynamics model.” Tunnelling and Underground Space Techn., 39, 102-115.
Rusuli, Y., Li, L., Ahmad, S., & Zhao, X. (2015). “Dynamics model to simulate water and salt balance of Bosten Lake in Xinjiang, China”. Environ. Earth Sciences, 74(3), 2499-2510.
Saegrov, Baptista, Conroy, Herz, LeGauffre, Moss, …Schiatti, (1999). “Rehabilitation of water networks Survey of research needs and on-going efforts”. Urban Water, 1(1), 15-22.
Shrestha, E., Ahmad, S., Johnson, W., & Batista, J. R. (2012). “The carbon footprint of water management policy options.” Energy Policy, 42, 201–212.
Shrestha, E., Ahmad, S., Johnson, W., Shrestha, P., & Batista, J. R. (2011). “Carbon footprint of water conveyance versus desalination as alternatives to expand water supply.” Desalin., 280(1–3), 33–43.
Southern Nevada Water Authority (SNWA), 2014. Water Conservation Plan, SNWA, Las Vegas, Nevada, https://www.snwa.com/assets/pdf/about_reports_conservation_plan.pdf
Stave, K. (2003). “A system dynamics model to facilitate public understanding of water management options in Las Vegas, Nevada.” J. of Environ. Management, 67(4), 303-313.
Sterman, J., 2000. Business Dynamics: Systems Thinking and Modeling for a Complex World, McGraw-Hill, Boston.
Tamaddun, K., Kalra, A., & Ahmad, S. (2018). “Potential of rooftop rainwater harvesting to meet outdoor water demand in arid regions.” J. Arid Land, 10(1), 68-83. https://doi.org/10.1007/s40333-017-0110-7.
Venkatesan, A. K., Ahmad, S., Johnson, W., & Batista, J. R. (2011a). “Salinity reduction and energy conservation in direct and indirect potable water reuse.” Desalin., 272(1–3), 120–127.
Venkatesan, A. K., Ahmad, S., Johnson, W., & Batista, J. R. (2011b). “Systems dynamic model to forecast salinity load to the Colorado River due to urbanization within the Las Vegas Valley.” Sci. Total Environ., 409(13), 2616–2625.
Wilson, Moshavegh, Frey Kolokas, Simpson, &Wilson, L. (2003). “Cost savings and enhanced reliability for main rehabilitation and replacement.” J. AWWA., 95(8), 54.
Wu, G., Li, L., Ahmad, S., Chen, X., & Pan, X. (2013). “A Dynamic Model for Vulnerability Assessment of Regional Water Resources in Arid Areas: A Case Study of Bayingolin, China.” Water Resour. Manage., 27(8), 3085–3101.
Zhang, F., Ahmad, S., Zhang, H., Zhao, X., Feng, X., & Li, L. (2016).” Simulating low and high streamflow driven by snowmelt in an insufficiently gauged alpine basin.” Stochastic Environ. Res. Risk Assess., 30(1), 59–75.

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Go to World Environmental and Water Resources Congress 2018
World Environmental and Water Resources Congress 2018: Hydraulics and Waterways, Water Distribution Systems Analysis, and Smart Water
Pages: 461 - 471
Editor: Sri Kamojjala, Las Vegas Valley Water District
ISBN (Online): 978-0-7844-8142-4

History

Published online: May 31, 2018

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Authors

Affiliations

Gaurang Mistry [email protected]
Dept. of Civil and Environmental Engineering and Construction, Univ. of Nevada, 4505 S. Maryland Pkwy., Las Vegas, NV 89154-4015, USA. E-mail: [email protected]
Dept. of Civil and Environmental Engineering, Southern Illinois Univ., 1230 Lincoln Dr., Carbondale, IL 62901-6603. E-mail: [email protected]
Sajjad Ahmad [email protected]
Dept. of Civil and Environmental Engineering and Construction, Univ. of Nevada, 4505 S. Maryland Pkwy., Las Vegas, NV 89154-4015, USA. E-mail: [email protected]

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