Delineation of traveltime-related capture areas of wells using analytical flow models and particle-tracking analysis

E. Scott Bair, Abraham E Springer, George S. Roadcap

Research output: Contribution to journalArticle

27 Scopus citations


Traveltime-related capture areas of wells can be estimated in hydrogeologic settings with predominantly two-dimensional flow regimes using image-well theory, the principle of superposition, an appropriate well-hydraulics equation, and particle-tracking analysis. These analytical methods can be used to simulate the response of an aquifer to pumping stress by incorporating site-specific values of hydraulic properties, the effects of geologic and hydrologic boundaries, nonuniform regional hydraulic gradients, and well interferences. Analytical flow models based on the Theis equation and the Hantush-Jacob equation were constructed from conceptual flow models based on geologic, hydrologic, and pumpage data from wellfields completed in a confined/unconfined stratified-drift aquifer and in a leaky-confined fractured-carbonate aquifer. Predicted head distributions from the calibrated flow models were used in a particle-tracking analysis to compute flowpath trajectories and traveltime-related capture areas. The results compare favorably with known flowpaths from sources of contamination proximal to each wellfield.

Original languageEnglish (US)
Pages (from-to)387-397
Number of pages11
Issue number3
StatePublished - May 1991
Externally publishedYes


ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Water Science and Technology

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