Water resources data, Texas, water year 2005

Gibbons, W.J.; Andrews, F.L.; Gandara, S.C.; Jones, R.E.; Barbie, D.L.

doi:10.3133/wdrtx05

2006

DOI: 10.3133/wdrtx05

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Water resources data, Texas, water year 2005

W.J. Gibbons¹,

F.L. Andrews²,

S.C. Gandara³

et al.

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A Simplified Approach for Monitoring Hydrophobic Organic Contaminants Associated with Suspended Sediment: Methodology and Applications

Mahler

Metre

2003

Archives of Environmental Contamination and Toxicology

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Hydrophobic organic contaminants, although frequently detected in bed sediment and in aquatic biota, are rarely detected in whole-water samples, complicating determination of their occurrence, load, and source. A better approach for the investigation of hydrophobic organic contaminants is the direct analysis of sediment in suspension, but procedures for doing so are expensive and cumbersome. We describe a simple, inexpensive methodology for the dewatering of sediment and present the results of two case studies. Isolation of a sufficient mass of sediment for analyses of organochlorine compounds and PAHs is obtained by in-line filtration of large volumes of water. The sediment is removed from the filters and analyzed directly by standard laboratory methods. In the first case study, suspended-sediment sampling was used to determine occurrence, loads, and yields of contaminants in urban runoff affecting biota in Town Lake, Austin, TX. The second case study used suspended-sediment sampling to locate a point source of PCBs in the Donna Canal in south Texas, where fish are contaminated with PCBs. The case studies demonstrate that suspended-sediment sampling can be an effective tool for determining the occurrence, load, and source of hydrophobic organic contaminants in transport.

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A Simplified Approach for Monitoring Hydrophobic Organic Contaminants Associated with Suspended Sediment: Methodology and Applications

Mahler

Metre

2003

Archives of Environmental Contamination and Toxicology

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Hydrogeologic delineation of habitats for endangered species: the Comal Springs/River System

Crowe

Sharp

1997

Environmental Geology

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Water resources data, Texas, water year 2005

Cited by 2 publications

References 0 publications

A Simplified Approach for Monitoring Hydrophobic Organic Contaminants Associated with Suspended Sediment: Methodology and Applications

A Simplified Approach for Monitoring Hydrophobic Organic Contaminants Associated with Suspended Sediment: Methodology and Applications

Hydrogeologic delineation of habitats for endangered species: the Comal Springs/River System

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