{"id":{"repo_id":"unlv","oai_identifier":"oai:oasis.library.unlv.edu:rtds-1069"},"canonical_url":"https://search.dev.ndltd.org/etd/unlv/oai:oasis.library.unlv.edu:rtds-1069","repository":{"repo_id":"unlv","name":"University of Nevada - Las Vegas","base_url":"https://oasis.library.unlv.edu/do/oai/"},"display":{"title":"Hydrogeology and ground-water quality in the Sanders area, western Puerco River basin, Arizona","abstract":"Ground-water in the western Puerco River basin near Sanders, Arizona, was evaluated to identify areas of poor water quality and possible radionuclide contamination from natural and/or anthropogenic sources. In addition to documented radioactive occurrences in the regional Chinle Formation, the headwaters of the Puerco River have been host to uranium mine waste discharge and spoils from a tailings pond failure in 1979. Samples from 42 wells and springs were collected during 1987-88 for inorganic ion and radionuclide analysis. Waters, originating from the Alluvial, Bidahochi, and Chinle aquifers, contained variable amounts of dissolved solids and radioactivity. Dissolved solids content ranged from 105 to 1390 mg/{dollar}l{dollar}, and combined gross alpha and beta activities ranged from 1 to 590 pCi/{dollar}l{dollar}. However, regional radioactive occurrences and overall low correlation values suggested most elevated radioactivity in ground water was produced by natural sources and not by recharge water from the Puerco River.","abstract_html":"Ground-water in the western Puerco River basin near Sanders, Arizona, was evaluated to identify areas of poor water quality and possible radionuclide contamination from natural and/or anthropogenic sources. In addition to documented radioactive occurrences in the regional Chinle Formation, the headwaters of the Puerco River have been host to uranium mine waste discharge and spoils from a tailings pond failure in 1979. Samples from 42 wells and springs were collected during 1987-88 for inorganic ion and radionuclide analysis. Waters, originating from the Alluvial, Bidahochi, and Chinle aquifers, contained variable amounts of dissolved solids and radioactivity. Dissolved solids content ranged from 105 to 1390 mg/{dollar}l{dollar}, and combined gross alpha and beta activities ranged from 1 to 590 pCi/{dollar}l{dollar}. However, regional radioactive occurrences and overall low correlation values suggested most elevated radioactivity in ground water was produced by natural sources and not by recharge water from the Puerco River.","abstract_has_math":false,"creators":["Dixon, Earle Campbell"],"institution":"University of Nevada, Las Vegas","degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Geoscience","degree_department":null,"school":null,"contributors":["John W. Hess"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1989,"date_issued":"1989-01-01T08:00:00Z","date_published":"1989-01-01T08:00:00Z","updated_at":"2026-07-24T05:24:07Z","subjects":[],"languages":["English"],"rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://oasis.library.unlv.edu/rtds/70"],"render_values":[{"text":"https://oasis.library.unlv.edu/rtds/70","href":"https://oasis.library.unlv.edu/rtds/70","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.25669/cvc5-vjp4","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["John W. 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Samples from 42 wells and springs were collected during 1987-88 for inorganic ion and radionuclide analysis. Waters, originating from the Alluvial, Bidahochi, and Chinle aquifers, contained variable amounts of dissolved solids and radioactivity. Dissolved solids content ranged from 105 to 1390 mg/{dollar}l{dollar}, and combined gross alpha and beta activities ranged from 1 to 590 pCi/{dollar}l{dollar}. However, regional radioactive occurrences and overall low correlation values suggested most elevated radioactivity in ground water was produced by natural sources and not by recharge water from the Puerco River."]},{"key":"dc:format","label":"Dc Format","values":["pdf"]},{"key":"dc:title","label":"Title","values":["Hydrogeology and ground-water quality in the Sanders area, western Puerco River basin, Arizona"]}]}],"canonical_facts":{"dc:contributor":["John W. Hess"],"dc:creator":["Dixon, Earle Campbell"],"dc:description.abstract":["Ground-water in the western Puerco River basin near Sanders, Arizona, was evaluated to identify areas of poor water quality and possible radionuclide contamination from natural and/or anthropogenic sources. In addition to documented radioactive occurrences in the regional Chinle Formation, the headwaters of the Puerco River have been host to uranium mine waste discharge and spoils from a tailings pond failure in 1979. Samples from 42 wells and springs were collected during 1987-88 for inorganic ion and radionuclide analysis. Waters, originating from the Alluvial, Bidahochi, and Chinle aquifers, contained variable amounts of dissolved solids and radioactivity. Dissolved solids content ranged from 105 to 1390 mg/{dollar}l{dollar}, and combined gross alpha and beta activities ranged from 1 to 590 pCi/{dollar}l{dollar}. However, regional radioactive occurrences and overall low correlation values suggested most elevated radioactivity in ground water was produced by natural sources and not by recharge water from the Puerco River."],"dc:format":["pdf"],"dc:identifier":["10.25669/cvc5-vjp4","https://oasis.library.unlv.edu/rtds/70","https://oasis.library.unlv.edu/context/rtds/article/1069/viewcontent/uc.pdf"],"dc:language":["English"],"dc:publisher":["University of Nevada, Las Vegas"],"dc:rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Hydrogeology and ground-water quality in the Sanders area, western Puerco River basin, Arizona"],"dc:type":["Text"],"thesis:degree_discipline":["Geoscience"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:24:07Z"}