Výsledky vyhledávání - "Christy A. Crandall"

Factors affecting the movement and persistence of nitrate and pesticides in the surficial and upper Floridan aquifers in two agricultural areas in the southeastern United States

Autor: Marian P. Berndt, Christy A. Crandall, Brian G. Katz

Publikováno v: Environmental Earth Sciences. 71:2779-2795

Differences in the degree of confinement, redox conditions, and dissolved organic carbon (DOC) are the main factors that control the persistence of nitrate and pesticides in the Upper Floridan aquifer (UFA) and overlying surficial aquifer beneath two

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::624d2ef3c65f2fb0172934af33a11e0d
https://doi.org/10.1007/s12665-013-2657-8

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Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States

Autor: Brian G. Katz, Matthew K. Landon, Sandra M. Eberts, Bryant C. Jurgens, Christy A. Crandall, Karen R. Burow

Publikováno v: Hydrogeology Journal. 18:577-593

Depth-dependent water-quality and borehole flow data were used to determine where and how contamination enters public-supply wells (PSWs) at study sites in different principal aquifers of the United States. At each of three study sites, depth-depende

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f53bf795bea0f532750e255cdc961737
https://doi.org/10.1007/s10040-009-0531-2

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Hydrochemical evidence for mixing of river water and groundwater during high-flow conditions, lower Suwannee River basin, Florida, USA

Autor: Joshua J. Hirten, Christy A. Crandall, Brian G. Katz

Publikováno v: Hydrogeology Journal. 7:454-467

Karstic aquifers are highly susceptible to rapid infiltration of river water, particularly during periods of high flow. Following a period of sustained rainfall in the Suwannee River basin, Florida, USA, the stage of the Suwannee River rose from 3.0

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efdc8c9823eaa2735fe6981b4d3c9c90
https://doi.org/10.1007/s100400050218

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Simulations of Groundwater Flow and Particle Tracking Analysis in the Area Contributing Recharge to a Public-Supply Well near Tampa, Florida, 2002-05

Autor: Marian P. Berndt, Leon J. Kauffman, Christy A. Crandall, W. Scott McBride, Brian G. Katz, Patricia A. Metz

Publikováno v: Scientific Investigations Report.

Shallow ground water in the north-central Tampa Bay region, Florida, is affected by elevated nitrate concentrations, the presence of volatile organic compounds, and pesticides as a result of groundwater development and intensive urban land use. The r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4287bfd48ddc884b56ae6e8aab11b8c6
https://doi.org/10.3133/sir20085231

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Vulnerability of a public supply well in a karstic aquifer to contamination

Autor: Andrew G. Hunt, P.A. Metz, W.S. McBride, Marian P. Berndt, Christy A. Crandall, Sandra M. Eberts, Brian G. Katz

Publikováno v: Ground water. 47(3)

To assess the vulnerability of ground water to contamination in the karstic Upper Floridan aquifer (UFA), age-dating tracers and selected anthropogenic and naturally occurring compounds were analyzed in multiple water samples from a public supply wel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15ff46d2a525619a9a4bddef6366b77e
https://pubmed.ncbi.nlm.nih.gov/18823399

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Source and transport controls on the movement of nitrate to public supply wells in selected principal aquifers of the United States

Autor: Matthew K. Landon, Leon J. Kauffman, Christy A. Crandall, John Karl Böhlke, Craig J. Brown, Karen R. Burow, Peter B. McMahon, K. L. Kipp

Publikováno v: Water Resources Research. 44

[1] In 2003–2005, systematic studies in four contrasting hydrogeologic settings were undertaken to improve understanding of source and transport controls on nitrate movement to public supply wells (PSW) in principal aquifers of the United States. C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3df8733541e8c4694b7e787547ecf214
https://doi.org/10.1029/2007wr006252

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