Thikra Dawood, Emad Elwakil, Hector Mayol Novoa, José Fernando Gárate Delgado
{"title":"3D Interactive Modeling of Pipe Failure in Water Supply Systems","authors":"Thikra Dawood, Emad Elwakil, Hector Mayol Novoa, José Fernando Gárate Delgado","doi":"10.1111/j.1936-704X.2020.3345.x","DOIUrl":"10.1111/j.1936-704X.2020.3345.x","url":null,"abstract":"<div>\u0000 \u0000 <p>The increased incidences of pipe breaks worldwide are posing a serious threat to potable water security in urban communities. The consequences may involve water loss and service interruptions, compromised water quality, infrastructure disruptions, and loss of revenue. Thus, creating failure assessment models is quite crucial to sustain water distribution networks (WDNs) and to optimize maintenance spending. This research paper aims at developing an assessment framework for water systems, as well as modeling the failure phenomena toward sustainable management of underground infrastructure. The city of El Pedregal in Peru was chosen to exemplify the methodology of the research due to the rapid pace of urbanization and growing economic activities in the region, which make water infrastructure even more critical. The framework is based on the application of modeling techniques stemming from statistical regression analysis (RA) and 3D schematic representation. First, the influential factors that lead to the deterioration of the WDNs are determined. Second, the RA technique is leveraged to evaluate and model the failure rate through consecutive simulation operations and a 3D surface plot. Finally, the efficacy of the model is investigated using different performance metrics, in conjunction with a residual analysis scheme. The validation results revealed the robustness of the model with R-squared (R<sup>2</sup>) and the sum of squares error (SSE) of 0.9767 and 0.0008, respectively. The developed model is a predictive tool that can be used by municipal engineers as a preemptive measure against future pipeline bursts or leaks.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2021-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.3345.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47446581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Katy E. Mazer, Abigail A. Tomasek, Fariborz Daneshvar, Laura C. Bowling, Jane R. Frankenberger, Sara K. McMillan, Hector M. Novoa, Carlos Zeballos-Velarde
{"title":"Integrated Hydrologic and Hydraulic Analysis of Torrential Flood Hazard in Arequipa, Peru","authors":"Katy E. Mazer, Abigail A. Tomasek, Fariborz Daneshvar, Laura C. Bowling, Jane R. Frankenberger, Sara K. McMillan, Hector M. Novoa, Carlos Zeballos-Velarde","doi":"10.1111/j.1936-704X.2020.3347.x","DOIUrl":"10.1111/j.1936-704X.2020.3347.x","url":null,"abstract":"<div>\u0000 \u0000 <p>Seated at the foot of the Misti volcano in an area prone to intense seasonal rains and earthquakes, the city of Arequipa is highly vulnerable to natural disasters. During the rainy season, intense storms create large volumes of runoff that rush through the city's ephemeral streams, known locally as <i>torrenteras</i>. Episodic flows in these <i>torrenteras</i> have caused flooding, damage to bridges, homes, and other infrastructure, and caused many deaths. In recent years, while unprecedented rain events have caused extreme disasters, the city's population has continued to expand into these channels by creating informal or illegal settlements. Currently, detailed hazard maps of flood-prone areas surrounding the <i>torrenteras</i> are not available to stakeholders in Arequipa. In this study, hydrologic and hydraulic models were combined to assess flash flood hazards, including inundation, velocity hazards, and slope instability hazards. Hydrologic models were created using satellite precipitation data and terrain-sensitive, gridded climate maps to characterize flow within six <i>torrenteras</i> in Arequipa. These flows were used in conjunction with elevation data and data collected in the field using an online mobile application system to develop a hydraulic model of these flood events. Hydraulic model outputs were used to determine flood hazards related to inundation, velocity affecting human stability, and slope instability in case study areas of the <i>torrenteras</i>. We then discuss how this information can be used by disaster risk management groups, water authorities, planners and municipalities, and community groups.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2021-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.3347.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46852090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Letter from the Editors","authors":"Karl W.J. Williard, Jackie F. Crim","doi":"10.1111/j.1936-704X.2020.03336.x","DOIUrl":"https://doi.org/10.1111/j.1936-704X.2020.03336.x","url":null,"abstract":"<p>The <i>Journal of Contemporary Water Research and Education</i> is evolving to better serve our authors and readership. We are pleased to introduce new article categories published in the <i>Journal of Contemporary Water Research and Education. JCWRE</i> now accepts submissions to five distinct categories: 1) Original Research, 2) Case Study, 3) Review, 4) Research Note, and 5) Perspective Piece.</p><p>The majority of articles published in <i>JCWRE</i> have been Original Research articles. Case Studies differ from an Original Research article in that Case Studies are “example” applications of concepts, tools, and models. The purpose of this category is to allow professionals to share new ideas, projects, or new applications of previously published research. Similar to an Original Research article, authors must identify how the research is novel and how it contributes to the existing literature. Authors must demonstrate an original contribution and cannot simply replicate previous studies. Review articles are comprehensive reviews of applied research, policy, education, or outreach/extension in water and watershed science and management. A Review article titled “Hawai‘i's Cesspool Problem: Review and Recommendations for Water Resources and Human Health” is published in this journal issue. Research Notes provide brief research communications, shorter than an Original Research article, and limited in scope. Examples of a Research Note would be to introduce a new method and/or compare existing methods, to report on preliminary data that may have a significant impact in the author's field, or to provide an update to previously published data. Perspective Pieces are commentaries on current water issues from experts in the field.</p><p>All submitted manuscripts should be of interest to the wide variety of water-related disciplines that encompass <i>JCWRE</i> readership. Each category has specific author guidelines that are found on www.ucowr.org. All categories, except Perspective Pieces, are peer-reviewed and subject to standard publication fees. Perspective Pieces are reviewed internally by our Editors and are not charged a publication fee. We look forward to receiving your manuscript submissions.</p><p>The <i>JCWRE</i> Editorial Staff is continually striving to enhance the journal and increase visibility. We want to thank past authors, reviewers, and Associate Editors for their contributions to <i>JCWRE</i>.</p><p>Sincerely,</p><p>Karl W.J. Williard and Jackie F. Crim</p><p>Co-Editors, <i>Journal of Contemporary Water Research and Education</i></p>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2021-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.03336.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137483763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Uhlman, C. Eastoe, Z. Guido, M. Crimmins, Anne Purkey‐Deller, S. Eden
{"title":"Assessing the Vulnerability of an Aquifer to Climate Variability through Community Participation in Arivaca, Arizona","authors":"K. Uhlman, C. Eastoe, Z. Guido, M. Crimmins, Anne Purkey‐Deller, S. Eden","doi":"10.1111/j.1936-704x.2020.03337.x","DOIUrl":"https://doi.org/10.1111/j.1936-704x.2020.03337.x","url":null,"abstract":"In Arivaca, Arizona, groundwater isotope measurements (stable O and H, tritium, and carbon-14) were made in conjunction with water level measurements and climate data. Recharge is predominantly young (post-1950) and is mainly from summer monsoon precipitation. Following a five-month period of unusually low δ18O and δ2H in precipitation in 2014-2015, corresponding shift in groundwater δ18O and δ2H was observed only at a site with recently built gabions. Water levels near the basin outlet increase in summer following periods of high storm frequency. Water levels also rebound in winter, possibly because of cessation of transpiration. The young groundwater is vulnerable to climate change, e.g., to protracted periods with summers that are drier or hotter than normal. Rapid assessment of groundwater and its connection to climate can provide valuable information to local water managers and citizens for whom more expensive studies are not feasible. Such assessments, based on relatively inexpensive isotope analyses and groundwater level data collected by volunteers, engage the community in management of its water resources. In Arivaca, the community responded to the results of the assessment with heightened interest in managing their water for sustainability and the construction of gabions to increase recharge from","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704x.2020.03337.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41806413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jennifer Hunnell, Heather A. Triezenberg, Diane M. Doberneck
{"title":"Training Early Career Great Lakes Scientists for Effective Engagement and Impact","authors":"Jennifer Hunnell, Heather A. Triezenberg, Diane M. Doberneck","doi":"10.1111/j.1936-704x.2020.03338.x","DOIUrl":"https://doi.org/10.1111/j.1936-704x.2020.03338.x","url":null,"abstract":"Freshwater systems worldwide are increasingly facing complex environmental issues. In the Laurentian Great Lakes region, harmful algal blooms are one example spanning agriculture, municipal drinking water, science and monitoring, water quality, and human health. Addressing these challenges and working across stakeholder interests requires sound science and additional skills that are not necessarily taught to graduate students in the apprentice research model. Effective stakeholder engagement and science communication are two areas consistent with emphases on broader impacts from the National Science Foundation, information and dissemination of the National Institutes of Health, and community engagement of the National Institutes of Health’s Institute of Environmental Health Sciences. The lack of training in these areas creates a gap for outreach, engagement, and science communication training to help enable researchers to translate important science to influential stakeholders, policy makers, and members of the public. To address this gap, we held a Community-Engaged Scholarship Workshop for graduate students and early career faculty. The workshop used an established community-engagement framework and was tailored to address the complex environmental issue of harmful algal blooms. It addressed four community-engagement competencies, including community-engaged partnerships, community-engaged teaching and learning, community-engaged research, and science communications. Here, we report evaluation results on changes in these four competencies and participant satisfaction. We conclude with a discussion of potential improvements and next steps for those seeking to host similar community-engaged trainings.","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704x.2020.03338.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45465114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Mezzacapo, M. Donohue, Celia M. Smith, A. El-Kadi, K. Falinski, D. Lerner
{"title":"Review Article: Hawai‘i's Cesspool Problem: Review and Recommendations for Water Resources and Human Health","authors":"M. Mezzacapo, M. Donohue, Celia M. Smith, A. El-Kadi, K. Falinski, D. Lerner","doi":"10.1111/j.1936-704x.2020.03339.x","DOIUrl":"https://doi.org/10.1111/j.1936-704x.2020.03339.x","url":null,"abstract":"","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704x.2020.03339.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42415625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Confluence of Anticolonial Pathways for Indigenous Sacred Site Protection","authors":"Rachel Ellis, Denielle Perry","doi":"10.1111/j.1936-704X.2020.03329.x","DOIUrl":"10.1111/j.1936-704X.2020.03329.x","url":null,"abstract":"<div>\u0000 \u0000 <p>The confluence of the Little Colorado and Colorado Rivers is an Indigenous socio-ecological landscape, revolving in large part around water resources. Substantial surface and groundwater use within the Little Colorado River (LCR) basin threatens the water sources of the confluence, springs in the LCR basin, and specifically the Hopi <i>Sipapuni</i>—a sacred site of cultural emergence. To address concerns about diminished flows of sacred springs, we engaged in praxis through collaborative, reciprocal, community-based research processes. Through the lens of anticolonial theory, we ask: Can federal policies be employed in an anticolonial pursuit of water and sacred site protection? How do Indigenous grassroots organizers envision protection and work to re-Indigenize water management? Semi-structured interviews with Indigenous community organizers and federal land managers were coupled with policy analysis of the National Historic Preservation Act/Traditional Cultural Properties, the ongoing LCR Adjudication, and the Treaty of Guadalupe Hidalgo. Findings point to multifaceted, complex, and contradictory themes that elucidate the continued influence of colonization on water governance and the degree to which protection solutions can be anticolonial. Criteria were generated for anticolonial protective pathways that highlight the centrality of reciprocal relationships, Indigenous Knowledges, and meaningful inclusion. While details about protection pathways for the confluence and <i>Sipapuni</i> are many, the salient finding is that the struggle for water protection in the LCR is the struggle for protection of inherent Indigenous rights.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.03329.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46190553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Water in the Native World","authors":"Karletta Chief","doi":"10.1111/j.1936-704X.2020.03328.x","DOIUrl":"10.1111/j.1936-704X.2020.03328.x","url":null,"abstract":"<p><b>T</b>o Indigenous peoples, water is sacred. Water is the lifeline of Indigenous cultures, ceremonies, livelihood, and beliefs. Indigenous peoples have a repository of knowledge related to water, its use, and its spatial and temporal distribution. Hydrology and water resources can greatly benefit from Indigenous perspectives that includes place-based knowledge that helps us better understand complex natural and human systems. Sivapalan et al. (<span>2012</span>) termed “social-hydrology” as the science of people and water that is aimed at understanding the dynamics and co-evolution of coupled human-water systems. For Indigenous people, the study and observation of water were never separated from the people. For some Indigenous people, separating people and water is impossible as the origin, occurrence, form, and quality of water often define an Indigenous person, clan, people, and/or community.</p><p>Internationally, Indigenous people are known as “water protectors” and they have been fighting to protect their waters from overuse and contamination. However, the voices of Indigenous people are rarely heard in hydrological sciences. The representation of Indigenous scientists in hydrology is also very small and they are often asked to participate in water research on tribal lands to ensure ethical protocols, strong tribal partnerships, and cultural sensitivity. Indigenous hydroscientists not only produce scientific investigation and knowledge, but they also have a passion and a deep commitment to doing science for the purpose of helping their communities address water challenges. In a sense, Indigenous hydroscientists become “water protectors” by using science as a tool to address water challenges facing tribal communities. Indigenous water scientists play a key role in bridging Western science with Indigenous knowledge and it is imperative to recruit and retain more Indigenous students in hydrological sciences. In this Special Issue, “Water in the Native World,” nearly all of the co-authors are Indigenous and three publications (Bulltail and Walter <span>2020</span>; Conroy-Ben and Crowder <span>2020</span>; Martin et. al <span>2020</span>) are led by an Indigenous lead author. With the need to consider the people in water research, Indigenous perspectives can also be gained through Indigenous scientists in health and social sciences. Indigenous health and social scientists have been present in health and social science research longer and in greater numbers than in hydrosciences. It is important to bridge hydrosciences with health and social sciences to critically examine health disparities and social dynamics. This Special Issue provides several examples of bridging hydrosciences with health and social sciences including Ellis and Perry (<span>2020</span>), Martin et al. (<span>2020</span>), and Kozich et al. (<span>2020</span>). This Special Issue is compiled by an Indigenous hydroscientist (Dr. Karletta Chief, Diné) and aims to bring to t","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.03328.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49447503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrew T. Kozich, Valoree S. Gagnon, Gene Mensch, Sophia Michels, Nicholas Gehring
{"title":"Walleye Ogaawag Spearing in the Portage Waterway, Michigan: Integrating Mixed Methodology for Insight on an Important Tribal Fishery","authors":"Andrew T. Kozich, Valoree S. Gagnon, Gene Mensch, Sophia Michels, Nicholas Gehring","doi":"10.1111/j.1936-704X.2020.03335.x","DOIUrl":"10.1111/j.1936-704X.2020.03335.x","url":null,"abstract":"<div>\u0000 \u0000 <p>The Portage Waterway in Michigan's Upper Peninsula supports traditional Anishnaabe walleye (or <i>ogaawag</i> in the Anishnaabe language) spear-harvesting for the Keweenaw Bay Indian Community (KBIC). Through reserved Indian treaty fishing rights, KBIC is highly involved in the waterway's stewardship and annual community spear-harvest. Tribal leadership and fisheries personnel have long documented that annual harvests are far below sustainable quotas. The objectives of this research were to 1) understand the values and concerns of KBIC tribal members on Anishnaabe walleye (<i>ogaawag</i>) spear-harvesting, 2) examine water temperature patterns during the spring 2018 harvest to seek insight on how harvests may be optimized, and 3) integrate <i>Anishinaabe gikendaasowin</i> or traditional knowledge with science and education. We conducted an online survey in February 2018, containing 27 questions, to gain preliminary insight on KBIC's perspectives of the annual walleye (<i>ogaawag</i>) spear-harvest. Nearly all respondents highly value the spear-harvest tradition personally and on behalf of the community. Similarly, nearly all agreed that it is important for the KBIC to manage its own fishery resources, and that the Tribe's Natural Resources Department effectively does so. Respondents also expressed concerns about factors that could impact their harvests, including environmental changes and confrontations with non-Native residents. From May 1 to May 19, 2018, we deployed 13 Onset HOBO Pro V2 temperature dataloggers across the Portage Waterway to measure spring warming patterns in locations popular for spear-fishing. This period encompassed the entire KBIC spear-harvest season, with dataloggers recording water temperature every two hours. Temperature data show that management of the harvest season may need revision, as embayments and sloughs where spear-fishing largely occurs warmed significantly earlier than other parts of the waterway. As the presence of walleye (<i>ogaawag</i>) in shallow waters depends on temperature, some parts of the waterway should be opened for harvesting earlier. Our findings will be prepared in a formal recommendation for KBIC leadership in efforts to increase harvests for the Tribal community that rely on walleye (<i>ogaawag</i>) as a sacred and traditional food source.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.03335.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48038749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unregulated and Emerging Contaminants in Tribal Water","authors":"Otakuye Conroy-Ben, Emily Crowder","doi":"10.1111/j.1936-704X.2020.03334.x","DOIUrl":"10.1111/j.1936-704X.2020.03334.x","url":null,"abstract":"<div>\u0000 \u0000 <p>Emerging contaminants in Tribal water have been unexplored until implementation of the Unregulated Contaminant Monitoring Rule (UCMR) campaigns, which mandated the analysis of up to 30 new contaminants in drinking water every five years. As additions to the Safe Water Drinking Act (SDWA), the UCMR1 – 3 were created to assess contaminants which have not yet been assigned a maximum contaminant level (MCL) but may be regulated in the future to protect human health. While a handful of Tribes (n = 6) participated in UCMR1, public water systems (PWS) within reservation boundaries were intentionally included in representative nation-wide sampling beginning with UCMR2 after a period of Tribal consultation. Still, less than 3% of Tribal PWS were surveyed. The results from UCMR2 revealed that samples from all surveyed Tribal PWS fell below the method detection limits. Target analytes shifted to metals, perfluorinated chemicals, hormones, volatile organic compounds (VOCs), dioxane, and chlorate under UCMR3. Detectable levels of metals (chromium, hexavalent chromium, strontium, and vanadium), chlorate, and dioxane were observed, and in some cases, at concentrations greater than the U.S. Environmental Protection Agency's (EPA's) recommended health reference limit (HRL). The presence of elevated levels of vanadium, strontium, 1,4-dioxane, perfluorooctanesulfonate (PFOS), and chlorate defines a new set of emerging contaminants that needs to be considered with regards to risk, reporting and monitoring, and water treatment in Tribal drinking water.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1936-704X.2020.03334.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48057372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}