California Water Science Center

TracerLPM Graphs

TracerLPM (Version 1): An Excel« Workbook for Interpreting Groundwater Age Distributions from Environmental Tracer Data

TracerLPM is an interactive Excel« (2007 or later) workbook program used to evaluate groundwater age distributions from environmental tracer data by using lumped parameter models (LPMs). User-defined age distributions, such as those determined from particle tracking, and those generated from LPMs can be used to calculate past and future concentrations of non-point source contaminants and in evaluating the response of wells or receptors to changes in source loading using TracerLPM.


Download Software:

Version 1.0.2, March 25, 2015

Operates on systems running Windows XP or later


Jurgens, B.C., B÷hlke, J.K., and Eberts, S.M., 2012, TracerLPM (Version 1): An Excel« workbook for interpreting groundwater age distributions from environmental tracer data: U.S. Geological Survey Techniques and Methods Report 4-F3, 60p. (Revised March 2014)

Other Resources:

For reporting bugs or questions about the program, please contact:

Bryant Jurgens, Hydrologist

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Page Last Modified: Tuesday, 28-Jul-2015 16:35:23 EDT