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<br /> to examine the Infeasible Solution File and potentially Hawaii;and Willits,California.In both of these small
<br /> reevaluate problem specifications, communities,the treatment facilities were failing
<br /> and completely new treatment facilities were to
<br /> Who Uses WAW17AR? be designed by local consulting firms.WAWTTAR
<br /> While WAWTTAR's initial target audience was instrumental in pointing out possible treatment
<br /> was outside the United States,it has also found processes that theconsulting engineers initiallyhad
<br /> considerable utility by engineers involved in small- not considered.
<br /> community project planning in the United States. WAWTIARalso can beusedto identify treatment
<br /> WAWTTARalsohas been widely praised as avaluable technologies that can be used to upgrade a facility
<br /> educational tool for engineers and facility planners, to meet new discharge requirements or water reuse
<br /> WAYMAR has been used in a wide range of standards.For example,WAWTTAR was used to
<br /> comrrmnityloeationsancisettings,including Jamaica identify constructed wetlands asaleast-cost upgrade
<br /> (semirural setting);Bulgaria(municipal—industrial to an oxidation pond system to meet new discharge
<br /> setting);the West Bank and Gaza(municipal and requirements for the city of Garberville,Calif.
<br /> pert-urban setting)In the Middle East;Koror(Palau),
<br /> Brazil;two small communities in Hawaii;and several Where Can I Find WAWTTAR?
<br /> small to medium-size communities in California, The program,which runs under the Windows
<br /> Oregon,Washington,Idaho,and Arizona.Validation operating system,and a detailed user manual are
<br /> exercises to date have shown that the program is available from the WAWTTAR Web site at http:/j
<br /> sensitive to the range of environmental,economic, firehole,humboldt.edulwawttar,
<br /> and social conditions considered in the program The Web site also has a forum where users can
<br /> design. exchange questions and comments.The original
<br /> WAWTTAR has assisted in the evaluation of a intent was that,over time,users would provide
<br /> variety of infrastructure investment scenarios.in updated cost and performance information,which
<br /> the areas of water treatment,wastewater treatment, would be used to update the WAWTTAR process
<br /> and water reclamation.For example,in the West database.Unfortunately,most consulting firms and
<br /> Bank and Gaza,WAVMAR was used to evaluate the equipment vendors have been reluctant to provide
<br /> ` long-term sustainability of a specified wastewater data to be used in WAWTTAR,fearing they will lose
<br /> treatment technology promoted by a potential donor. some perceived competitive advantage over other
<br /> While the technology might be a fine choice In some firms.
<br /> settings,the lack of trained operational staff and Since the last update to WAWTTAR in 2005,
<br /> the inability to easily obtain spare parts resulted sharing new process data has been simplified to
<br /> in a decision that the potential donation would not help encourage user participation.A simple menu
<br /> provide a sustainable solution to the wastewater selection enables any user to upload data to the Web
<br /> treatment needs of the community, site for a new or revised treatment.After review,the
<br /> In some cases,rather than specifying a particular new data are available for any WAWTPAR user to
<br /> technology,a donor or government agency may download by selecting the appropriate menu choice
<br /> specify a specific financial limit on a project.WAWTTAR in the program.
<br /> can be helpful in these situations by enabling a rapid
<br /> examination of the costs and resource requirements Brad A. Finney is a professor, and Robert
<br /> of various treatment alternatives. A. Gearheart is an emeritus professor in the
<br /> In an application in Jamaica,WAWTTAR helped Environmental Resources Engineering Department
<br /> determine which treatment technologies allowed at Humboldt State University(Arcata,Calif.).Andrew
<br /> for the largest service area in a semirural region Salverson is a reuse and research and develop-
<br /> with a fixed budget.WAWTTAR also evaluated which ment project manager,and George thou is a reuse
<br /> technologies minimized the risk of system failure and research and development project engineer in
<br /> by considering limits on resources,labor,materials, the Walnut Creek,Calif.,office of Carolto Engineers
<br /> management,and technology that are unique to the (Phoenix).MaryBurkeandJongChanLy are gradu-
<br /> area. ate students at Humboldt State Urdversiq�
<br /> In the United States,the most common use for
<br /> WAWTTAR is to determine the least-cost(total Acknowledgment
<br /> construction and O&M)treatment system that meets Theaudiors gratefully acknowledge the financial,
<br /> a community's needs and is compatible with its technical,and administrative assistance provided
<br /> socioeconomic conditions.For example,WAW17AR by the WateReuse Foundation(Alexandria,Va.)in
<br /> has been used to assist in the feasibility and facility funding and managing a project through which some
<br /> planning process for new treatment facilities in laie, of the cost and performance data was gathered.
<br /> WE&'r WWW.WEE.ORGthiAGAZiNE
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