Geochemical and stable isotope variations in baseflow from an urbanized watershed: White Rock Creek, Dallas, Texas

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Public concerns about surface water quality and its impact on health issues have put a premium on the ability to predict surface and groundwater quality in urban areas. The movement of toxins and nutrients in urban areas is largely controlled by interactions with soil and aquifer minerals along hydrologic pathways. Despite progress in theoretical modeling of the effects of these interactions on water chemistry, it is presently impossible to predict overall trends in urban water quality. Determining the controls on stream water chemistry is problematic due to the interplay between different hydrologic reservoirs which cannot be easily observed or measured. ... continued below

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6 p.

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Hercod, D.J.; Gregory, R.T. & Brady, P.V. March 1, 1995.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Hercod, D.J.
  • Gregory, R.T. State Medical Univ., Dallas, TX (United States). Dept. of Geological Sciences
  • Brady, P.V. State Medical Univ., Dallas, TX (United States). Dept. of Geological Sciences

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Public concerns about surface water quality and its impact on health issues have put a premium on the ability to predict surface and groundwater quality in urban areas. The movement of toxins and nutrients in urban areas is largely controlled by interactions with soil and aquifer minerals along hydrologic pathways. Despite progress in theoretical modeling of the effects of these interactions on water chemistry, it is presently impossible to predict overall trends in urban water quality. Determining the controls on stream water chemistry is problematic due to the interplay between different hydrologic reservoirs which cannot be easily observed or measured. Natural tracers, such as dissolved ions and isotopes, provide an indirect method for observing subsurface interactions and are useful for time series analysis of stream water composition. Ionic species are generally nonconservative components because of chemical reactions and are thus useful for discerning the overall discharge chemistry affected by the relationship.

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6 p.

Notes

INIS; OSTI as DE95008528

Source

  • 24. water for Texas conference, Austin, TX (United States), 25-26 Jan 1995

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  • Other: DE95008528
  • Report No.: SAND--95-0318C
  • Report No.: CONF-950178--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 39092
  • Archival Resource Key: ark:/67531/metadc688542

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 1995

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • April 14, 2016, 7:46 p.m.

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Hercod, D.J.; Gregory, R.T. & Brady, P.V. Geochemical and stable isotope variations in baseflow from an urbanized watershed: White Rock Creek, Dallas, Texas, article, March 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc688542/: accessed November 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.