Water Online

June 2013

Water Online the Magazine gives Water & Wastewater Engineers and end-users a venue to find project solutions and source valuable product information. We aim to educate the engineering and operations community on important issues and trends.

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Tutorial contrasted with the cost of proven to be effective across the utilities' historical water a wide array of applications, supply options (such as in water, stormwater, wastepumping and treating local water, and biosolids managegroundwater). However, ment. A soundly developed in each community, local quantitative TBL can help groundwaters were overengage stakeholders, evaluextracted and subject to ate alternatives, and ultimatesignificant quality degradaly help make a solid business tion. In order to sustain local case for worthwhile capital groundwater quality and Figure 2: TBL results for including water reuse and brackish groundwater desal in projects. long-term extraction, alter- the water supply portfolio for El Paso Water Utilities, compared to the next-best alternative of groundwater importation (present values over a 50-year planning native water supply sources horizon). were required to meet the 1E.g. Elkington, John. 1998. "Cannibals with Forks: The Triple Bottom Line of communities' current and anticipated future demands. 21st Century Business" New Society Publishers. Gabriola Island, BC, Canada Figure 2 shows the results of a quantitative TBL we conducted for the El Paso region of Texas. Its investments Robert Raucher, Ph.D., founding partner and principal at Stratus (past and planned) in water reuse and desalination of Consulting, has more than 30 years of experience specializing in economics, risk management, strategic planning, and regulatory policy analysis brackish groundwater appear — on the surface — to be related to water supply planning and water utility management. Raucher very expensive in terms of the cost per acre foot (AF) of holds a Ph.D. (1980) in natural resource economics and public finance and an MS (1978) in econometrics from the University of Wisconsinwater derived when compared with their historical costs Madison. He earned his BA in economics and anthropology from the from local groundwater pumping. However, because of State University of New York at Albany (1976). pumping limitations imposed to ensure sustainable aquifer yields and avoid degradation of groundwater quality, no additional fresh groundwater extractions are feasible to meet all existing or anticipated larger demands through 2060. Additional supplies must rely on reuse and desal, or on longdistance importation of groundwater that the utility holds rights to, but which is located many miles away. Over the 50-year water supply planning period, our TBL study revealed savings of nearly $1 billion New Look, Same Company dollars (in present value terms) due Tonka Water is growing, and has transitioned to the existing and planned use of to a new name, logo, and brand that may reuse and desal, as contrasted with look diferent than when you called us Tonka Equipment Company. We want you to know the alternative of water importation. that we are still the same manufacturer that Social and environmental benefits you've come to know and trust. also were derived for the reuse and Tonka Water still ofers complete, customized desal programs, as contrasted with water treatment solutions that you need to the alternative of accelerated water provide the highest quality drinking water, and imports. we will continue to ofer a broad range of products and services. Conclusion: TBL Helps Utilities Move Ahead With Sound Investments Quantitative TBL can be a highly effective approach for understanding the overall merits and importance of the many high-cost investments needed by water sector utilities in the 21st century. This approach has With over 2,200 water installations since 1956, we've developed the expertise to solve your most challenging water treatment needs. We've learned how to listen, innovate and deliver quality systems to the water treatment industry. We appreciate your business and look forward to working with you on your next project. www.TonkaWater.com 763.559.2837 Tonka Water is a trademark of Tonka Equipment Company. ©2013 wateronline.com ■ Water Online The Magazine 21

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