Historical water-quality data, Puerco River Basin, Arizona and New Mexico

Wirt, Laurie; Metre, Peter C. Van; Favor, B.O.

doi:10.3133/ofr91196

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…Beyond arsenic and uranium, the results demonstrate an elevation above US EPA guidelines and USGS average water content of four other metals (Ca, Li, Mn, V). These four metals have been investigated in only a few previous publications, the most significant being a spatial clustering analysis by Hoover (2018) that matched co-eluting contaminants in water sources across Navajo [52,71,72]. Elevations of calcium and vanadium in drinking water do not seem to have any significant detriment other than changes in the aesthetic quality of the water, and these elevations seem reasonable given the geologic profile of the Navajo Nation [56,65,73].…”

Section: Resultsmentioning

confidence: 99%

“…Some studies suggest lithium in drinking water is associated with decreased instances of some mental health conditions (depression, anxiety, and dementia); however, this is still hotly debated. Additionally, lithium exposure has been linked with the development of chronic kidney disease [72,74,75,76,77]. There is growing evidence that chronic exposure to manganese in drinking water may have similar neurotoxic effects as occupational exposure to manganese, resulting in intellectual impairment in children and visible brain deposition in mouse models [78,79,80].…”

Section: Resultsmentioning

confidence: 99%

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Quantification of Elemental Contaminants in Unregulated Water across Western Navajo Nation

Credo

Torkelson

Rock

et al. 2019

IJERPH

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The geologic profile of the western United States lends itself to naturally elevated levels of arsenic and uranium in groundwater and can be exacerbated by mining enterprises. The Navajo Nation, located in the American Southwest, is the largest contiguous Native American Nation and has over a 100-year legacy of hard rock mining. This study has two objectives, quantify the arsenic and uranium concentrations in water systems in the Arizona and Utah side of the Navajo Nation compared to the New Mexico side and to determine if there are other elements of concern. Between 2014 and 2017, 294 water samples were collected across the Arizona and Utah side of the Navajo Nation and analyzed for 21 elements. Of these, 14 elements had at least one instance of a concentration greater than a national regulatory limit, and six of these (V, Ca, As, Mn, Li, and U) had the highest incidence of exceedances and were of concern to various communities on the Navajo Nation. Our findings are similar to other studies conducted in Arizona and on the Navajo Nation and demonstrate that other elements may be a concern for public health beyond arsenic and uranium.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Quantification of Elemental Contaminants in Unregulated Water across Western Navajo Nation

Credo

Torkelson

Rock

et al. 2019

IJERPH

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“…Many streams in the Little Colorado River watershed have been dammed for consumptive use or recreation, changing the frequency of significant flow events. The Puerco River, a tributary to the Little Colorado River, is largely unregulated and can produce a large volume of sediment under intense runoff conditions (Wirt et al 1991).…”

Section: Colorado River Below Glen Canyon Dam and The Role Of Tributariesmentioning

confidence: 99%

Breeding waterbirds of the Mexican portion of the Colorado River delta

Mellink¹,

Hinojosa-Huerta²

Riparian Research and Management: Past, Present, Future: Volume 1

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Fifty years ago, riparian habitats were not recognized for their extensive and critical contributions to wildlife and the ecosystem function of watersheds. This changed as riparian values were identified and documented, and the science of riparian ecology developed steadily. Papers in this volume range from the more mesic northwestern United States to the arid Southwest and Mexico. More than two dozen authors-most with decades of experience-review the origins of riparian science in the western United States, document what is currently known about riparian ecosystems, and project future needs. Topics are widespread and include: interactions with fire, climate change, and declining water; impacts from exotic species; unintended consequences of biological control; the role of small mammals; watershed response to beavers; watershed and riparian changes; changes below large dams; water birds of the Colorado River Delta; and terrestrial vertebrates of mesquite bosques. Appendices and references chronicle the field's literature, authors, "riparian pioneers," and conferences.

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US Geological Survey research on the environmental fate of uranium mining and milling wastes

Landa

Gray

1995

Geo

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Historical water-quality data, Puerco River Basin, Arizona and New Mexico

Cited by 6 publications

References 31 publications

Quantification of Elemental Contaminants in Unregulated Water across Western Navajo Nation

Quantification of Elemental Contaminants in Unregulated Water across Western Navajo Nation

Breeding waterbirds of the Mexican portion of the Colorado River delta

US Geological Survey research on the environmental fate of uranium mining and milling wastes

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