Estimation of Solute Concentrations Using the Pathline Counting Method

Jeffrey A. Johnson, Ravi Varadhan, J. Kevin Rumery

Research output: Contribution to journalArticle


The paper discusses the use of the “pathline counting” approach to estimate solute concentrations at an extraction well using particle‐tracking flow models. The pathline counting approach is a unique method for predicting solute concentrations due to mixing. The pathline counting method using the semianalytical module RESSQC, contained within the WHPA model, was compared to MT3D, a numerical mass transport code, for a simple hypothetical problem. Results from the comparison indicate that results from the pathline counting approach were in reasonable agreement with the MT3D results. This approach was then applied to a field study, the Park City Bioremediation Project. The migration of a conservative tracer injected into three upgradient cells was simulated to estimate the concentration of solute at two pumping wells. The calculated concentrations compared favorably with measured field concentrations.

Original languageEnglish (US)
Pages (from-to)719-726
Number of pages8
JournalGround Water
Issue number5
Publication statusPublished - 1994
Externally publishedYes


ASJC Scopus subject areas

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

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