Solute distribution in the Ogallala Aquifer, Texas: lithium, fluoride, nitrate, chloride and bromide

Citation

Material Information

Title:
Solute distribution in the Ogallala Aquifer, Texas: lithium, fluoride, nitrate, chloride and bromide
Series Title:
Carbonates and Evaporites
Creator:
Hudak, Paul F.
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Lithium ( local )
Fluoride ( local )
Nitrate ( local )
Chloride ( local )
Bromide ( local )
Groundwater ( local )
Ogallala ( local )
Texas ( local )
Genre:
serial ( sobekcm )

Notes

Abstract:
Spatial patterns of lithium, fluoride, nitrate, chloride and bromide in the Ogallala Aquifer of northwestern Texas were mapped and evaluated. Solute concentrations and depths were compiled for 705 water wells sampled between 2008 and 2014. Lithium concentrations were high relative to typical groundwater; median and maximum concentrations were 66.8 and 2,790 ug/L, respectively. Almost half of the fluoride observations equaled or exceeded the secondary maximum contaminant level (MCL) of 2 mg/L. Many nitrate observations exceeded the MCL of 44.3 mg/L, and several chloride observations exceeded the secondary MCL of 250 mg/L, with a maximum concentration nearly ten times that level. Most bromide observations were less than 0.15 mg/L; however, some observations exceeded 10 mg/L. Several wells had high chloride/bromide ratios and high chloride concentrations. Generally, concentrations of all solutes were higher in the southern part of the aquifer, where wells are relatively shallow. Solute concentrations documented in this study are likely influenced by water–rock interaction within the aquifer, as well as mixing with groundwater in underlying bedrock containing evaporite minerals. Agricultural practices and possibly oilfield activity also affect water quality in the Ogallala Aquifer.
Original Version:
Carbonates and Evaporites, Vol. 31, no. 4 (Nov-16).

Record Information

Source Institution:
University of South Florida Library
Holding Location:
University of South Florida
Rights Management:
This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.

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