Search Results - "LeChevallier, Mark"

Drinking water microbiome assembly induced by water stagnation by Ling, Fangqiong, Whitaker, Rachel, LeChevallier, Mark W., Liu, Wen-Tso

“…What happens to tap water when you are away from home? Day-to-day water stagnation in building plumbing can potentially result in water quality deterioration…”
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Occurrence of culturable Legionella pneumophila in drinking water distribution systems by LeChevallier, Mark W.

“…A prior study of 12 potable water distribution systems detected Legionella pneumophila in only one of 576 samples (0.17%), but the survey was conducted during…”
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America Needs a New National Water Policy by LeChevallier, Mark W.

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Managing Legionella pneumophila in Water Systems by LeChevallier, Mark W.

“…Key Takeaways Utilities might be in compliance with water treatment regulations, but is this enough to safeguard against pathogens such as Legionella? Keeping…”
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Where in the Water World is Gretta? by LeChevallier, Mark W.

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Microbial community similarity and dissimilarity inside and across full-scale activated sludge processes for simultaneous nitrification and denitrification by Wen, Jianfeng, LeChevallier, Mark W, Tao, Wendong

“…Simultaneous nitrification and denitrification under low dissolved oxygen conditions is an energy-saving modification of the activated sludge process to…”
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Core-satellite populations and seasonality of water meter biofilms in a metropolitan drinking water distribution system by Ling, Fangqiong, Hwang, Chiachi, LeChevallier, Mark W, Andersen, Gary L, Liu, Wen-Tso

“…Drinking water distribution systems (DWDSs) harbor the microorganisms in biofilms and suspended communities, yet the diversity and spatiotemporal distribution…”
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Microbial Community Dynamics of an Urban Drinking Water Distribution System Subjected to Phases of Chloramination and Chlorination Treatments by HWANG, Chiachi, FANGQIONG LING, ANDERSEN, Gary L, LECHEVALLIER, Mark W, LIU, Wen-Tso

“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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Risk-Based Critical Concentrations of Legionella pneumophila for Indoor Residential Water Uses by Hamilton, Kerry A, Hamilton, Mark T, Johnson, William, Jjemba, Patrick, Bukhari, Zia, LeChevallier, Mark, Haas, Charles N, Gurian, P. L

“…Legionella spp. is a key contributor to the United States waterborne disease burden. Despite potentially widespread exposure, human disease is relatively…”
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Monitoring distribution systems for Legionella pneumophila using Legiolert by LeChevallier, Mark W.

“…This study implemented the Legiolert test (a culture‐based assay for L. pneumophila based on the most probable number [MPN]) at 12 utilities to assess their…”
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Protecting wastewater workers from disease risks: Personal protective equipment guidelines by LeChevallier, Mark W., Mansfield, Theodore J., Gibson, Jacqueline MacDonald

“…The 2013–2016 Ebola epidemic revived concerns about infection risks to wastewater workers. Prior research has shown that wastewater can contain a variety of…”
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Regrowth of Potential Opportunistic Pathogens and Algae in Reclaimed-Water Distribution Systems by Jjemba, Patrick K, Weinrich, Lauren A, Cheng, Wei, Giraldo, Eugenio, LeChevallier, Mark W

“…A study of the quality of reclaimed water in treated effluent, after storage, and at three points in the distribution system of four plants in California,…”
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Opportunistic Pathogens in Drinking Water Distribution Systems-A Review by LeChevallier, Mark W, Prosser, Toby, Stevens, Melita

“…In contrast to "frank" pathogens, like , , and , that always have a probability of disease, "opportunistic" pathogens are organisms that cause an infectious…”
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Pyrosequencing Analysis of Bacterial Biofilm Communities in Water Meters of a Drinking Water Distribution System by HONG, Pei-Ying, HWANG, Chiachi, FANGQIONG LING, ANDERSEN, Gary L, LECHEVALLIER, Mark W, LIU, Wen-Tso

“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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Phenotypic and Phylogenetic Identification of Coliform Bacteria Obtained Using 12 Coliform Methods Approved by the U.S. Environmental Protection Agency by Zhang, Ya, Hong, Pei-Ying, LeChevallier, Mark W, Liu, Wen-Tso

“…The current definition of coliform bacteria is method dependent, and when different culture-based methods are used, discrepancies in results can occur and…”
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Implications of organic carbon in the deterioration of water quality in reclaimed water distribution systems by Weinrich, Lauren A., Jjemba, Patrick K., Giraldo, Eugenio, LeChevallier, Mark W.

“…Changes in water quality in reclaimed water distribution systems are a major concern especially when considering the potential for growth of pathogenic…”
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Mark W. LeChevallier: 2015 A.P. Black Award Recipient by Anon

“…Mark W. LeChevallier is the 2015 recipient of AWWA's A.P. Black Research Award, which was established in 1967 in honor of Alvin Percy Black to recognize…”
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Occurrence of Legionella in Nonpotable Reclaimed Water by Johnson, William J., Jjemba, Patrick K., Bukhari, Zia, LeChevallier, Mark W.

“…Legionella was monitored in reclaimed water systems and were detected by culture in 50% of 115 samples, while 80% of the samples were positive by quantitative…”
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Impact of MBR cleaning and breaching on passage of selected microorganisms and subsequent inactivation by free chlorine by HIRANI, Zakir M, BUKHARI, Zia, OPPENHEIMER, Joan, JJEMBA, Patrick, LECHEVALLIER, Mark W, JACANGELO, Joseph G

“…Membrane bioreactors (MBRs) produce better quality effluent compared to conventional treatment processes but they are still subjected to the same disinfection…”
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Protocol for responding to the detection of Legionella pneumophila in drinking water distribution systems by Bartrand, Timothy A., LeChevallier, Mark W., Clancy, Jennifer L., Burlingame, Gary A.

“…A protocol for responding to Legionella pneumophila detections in distribution system samples is presented and justified. The protocol was developed using…”
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