Water Well Journal
Issue link: http://read.dmtmag.com/i/767379
Conclusion Degraded water quality is a common result of bacterial fouling. But the know- ledge of biological fouling mechanisms with regards to well operation gives us the ability to make much more informed decisions about maintenance. Assessments of the biological communities inhabiting wells can allow for more effective treatment strategies, selection of the proper chemistries, and more accurate chemical volumes— ultimately extending the life of the well. While even the best cleaning and disinfection efforts fail to sterilize a well, better control and operation gained from proactive monitoring and supportive data ultimately allows for improved produced water quality. References Duderstadt, Eric. 2016. "The Mysterious 'Bac-T' Test." Water Well Journal 70, no. 7: 18-23. Sterrett, Robert J. 2007. Groundwater & Wells: Third Edition. Bloomington, Minnesota: Litho Tech. MICROBIOLOGY from page 21 WWJ To learn more, visit foremost.ca or call 1.800.661.9190 (Canada/U.S.A.) 1.403.295.5800 (Worldwide) DRILLS THE STRAIGHEST HOLES COMPLETE CONTROL OF DISCHARGE EASIEST DRILL TO MAINTAIN The rotation of the casing by the lower drive results in a very straight hole making it ideal for shaft holes and foundation piles. This also minimizes stress on casing and casing welds, and eases the task of installing screens and pumps in water well applications. Cuttings are diverted through the discharge swivel and can be directed to a safe and convenient dumping or monitoring point. This is a useful feature when drilling in urban areas or when cuttings must be contained for sampling environmental or safety reasons. Foremost DR rigs feature a directly connected hydraulic feed system – which means no chains, sheaves, or sprockets. This type of feed system generates zero load on the mast crown, permitting a simple, low maintenance mast design that does not sacrifice pullback capability. waterwelljournal.com 22 January 2017 WWJ Eric Duderstadt is an environmental biologist with Water Systems Engineering Inc. of Ottawa, Kansas, where he works as a consultant. He earned his bachelor's degree in biology at Ottawa University in 2007 and has since become certified as a corrosion technician within the National Association of Corrosion Engineers. He also works within the firm's research department and investigative laboratory centering on microbiology and chemistry. Duderstadt can be reached at eduderstadt @h2osystems.com.