Water Well Journal

January 2017

Water Well Journal

Issue link: https://read.dmtmag.com/i/767379

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Page 9 of 63

W e begin 2017 with a January publication focusing on well maintenance. There are two feature stories on the subject, one focusing on bleach and the other on how knowing microbiology can assist you in maintaining a well. The cover story on page 25 is titled "No Bleach!" Author Roger Miller examines how to effectively—and smartly—disinfect well systems. He begins by pointing out the significance of disinfection as a process that can enable a well to continue producing water while also ensuring it is a safe well. Miller notes effective water well disinfection is not a simple process. It is one requiring a trained water well contractor who understands disinfection chemicals, their proper application procedures, and the rules and regulations under which to operate. He goes into detail on chlorine, concentrations to use, and removing it from the well so the system can be put back into operation. Author Eric Duderstadt contributes "Knowing Well Microbiology" on page 18. He says groundwater professionals with a strong knowledge of biofouling mecha- nisms can better maintain well systems and that monitoring bacteria is not just a water quality issue. Being able to properly assess biological communities inhabiting wells can allow for more effective treatment strategies, selecting the proper chemistries, and more accurate chemical volumes—ultimately extending the life of the well. Duderstadt then provides detail on biofilm, scale, microbially influenced corrosion, and how to evaluate wells to make maintenance decisions. The monthly installment of the Safety Matters column on page 38 begins a two-part series on companies measuring their safety performance. Jerome E. Spear, CSP, CIH, focuses the first article, "Measuring Safety and Health Performance," on reviewing commonly used performance indicators. He explains the different metrics that can be used and then provides details on outcome performance measures—those that occur after the fact and measure an outcome, and process-oriented performance measures—those indicating an action or activities are being performed. He adds no single one metric or type is best and that a combination is truly needed to measure a company's safety performance. Spear provides detail on measures such as injury/illness rates and insurance claims data to showcase how the different metrics work. Drawing from the Well columnist Gary Shawver, MGWC, discusses grouting issues once again in his January column. "A View on Minimum Grouting Standards" on page 30 recounts how grouting standards have changed since Shawver began in the industry and how he feels doing more than the minimum can not only lead to high quality well systems, but satisfied customers too. His firm performs full-length grouting of the casing on its jobs and even grouts a 5-inch liner inside a 6.375-inch inside diameter casing with neat cement. He admits the jobs come with extra costs, but points out benefits that outweigh the costs. Water Well Journal catches up with the authors of the recently released book, Operational Stage of the Well in a WWJ Q&A on page 28. The NGWA Press book is written by Thomas M. Hanna, PG, Michael J. Schnieders, PG, PH-GW, and John H. Schnieders, Ph.D., CPC and the authors answered questions about the book, well life, and well maintenance. The book details how wells, depending on their environment, deteriorate at varying rates based on a variety of factors such as well design, operational history, water quality, and more. As understanding everything can be difficult, they provide a method to assess and assign a value to a well's health. Disclaimer Water Well Journal and the National Ground Water Association provide information for guid- ance and information purposes only. This publi- cation is not intended to provide investment, tax, or legal advice. The information contained herein has been compiled from sources deemed reliable and it is accurate to the best of our knowledge and belief; however, Water Well Journal and the National Ground Water Association cannot guarantee as to its accuracy, completeness, and validity and cannot be held liable for any errors or omissions. All information contained herein should be independently verified and confirmed. Water Well Journal and the National Ground Water Association do not accept any liability for any loss or damage howsoever caused in reliance upon such information. Reader agrees to assume all risk resulting from the application of any of the information provided by Water Well Journal and the National Ground Water Association. Trademarks and copyrights mentioned within Water Well Journal are the ownership of their respective companies. The names of products and services presented are used only in an edu- cational fashion and to the benefit of the trade- mark and copyright owner, with no intention of infringing on trademarks or copyrights. No endorsement of any third-party products or services is expressed or implied by any infor- mation, material, or content referred to in the Water Well Journal. Subscriptions/Back Issues For questions, changes or problems with your subscription call Carol Clark. Subscriptions: Water well contractors and other qualified groundwater industry personnel in U.S. and Canada — free; others in U.S. and Canada — $115 per year; $15 per copy. International: $150 per year; $35 per copy. Subscriptions available through NGWA offices only. We re- serve the right to refuse subscriptions to any- one not directly engaged in the groundwater industry. Claims for missing issues must be made in writing within three months of publi- cation and will be subject to the availability of back issues. Advertising Disclaimer Advertisers and advertising agencies assume liability for all content (including text, repre- sentation, and illustrations) of advertisements printed and also assume responsibility for any claims arising therefrom made against the pub- lisher. The publisher reserves the right to reject any advertising that it believes is not in keeping with the publication's standards or is deemed unsuitable or misleading. In this ISSUE waterwelljournal.com Roger Miller Jerome E. Spear, CSP, CIH Gary Shawver, MGWC 8 January 2017 WWJ

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