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Stagnant water can have chemical and microbiological contaminants that pose potential health risks to occupants. Health officials, building owners, utilities, and other entities are rapidly developing guidance to address this issue, but the scope, applicability, and details included in the guidance vary widely. To provide a primer of large building water system preventative and remedial strategies, peer\u2010reviewed, government, industry, and nonprofit literature relevant to water stagnation and decontamination practices for plumbing was synthesized. Preventative practices to help avoid the need for recommissioning (e.g., routine flushing) and specific actions, challenges, and limitations associated with recommissioning were identified and characterized. Considerations for worker and occupant safety were also indicated. The intended audience of this work includes organizations developing guidance.<\/jats:p>","DOI":"10.1002\/aws2.1186","type":"journal-article","created":{"date-parts":[[2020,6,16]],"date-time":"2020-06-16T10:05:07Z","timestamp":1592301907000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":113,"title":["Considerations for large building water quality after extended stagnation"],"prefix":"10.1002","volume":"2","author":[{"given":"Caitlin R.","family":"Proctor","sequence":"first","affiliation":[{"name":"Division of Environmental and Ecological Engineering, Lyles School of Civil Engineering, Weldon School of Biomedical Engineering, School of Materials Engineering Purdue University West Lafayette Indiana"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William J.","family":"Rhoads","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering Virginia Tech Blacksburg Virginia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tim","family":"Keane","sequence":"additional","affiliation":[{"name":"Legionella Risk Management, Inc. Chalfont Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maryam","family":"Salehi","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering University of Memphis Memphis Tennessee"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kerry","family":"Hamilton","sequence":"additional","affiliation":[{"name":"School of Sustainable Engineering and the Built Environment Arizona State University Tempe Arizona"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kelsey J.","family":"Pieper","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering Northeastern University Boston Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David M.","family":"Cwiertny","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, Seamans Center for the Engineering Arts and Sciences University of Iowa Iowa City Iowa"},{"name":"Center for Health Effects of Environmental Contamination University of Iowa Iowa City Iowa"},{"name":"Public Policy Center University of Iowa Iowa City Iowa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michele","family":"Pr\u00e9vost","sequence":"additional","affiliation":[{"name":"Civil, Geological and Mining Engineering Polytechnique Montreal Montr\u00e9al Qu\u00e9bec Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew J.","family":"Whelton","sequence":"additional","affiliation":[{"name":"Lyles School of Civil Engineering, Division of Environmental and Ecological Engineering Purdue University West Lafayette Indiana"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,8,6]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"ADEQ. 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