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Most common methods used to present water-level data are graphical. These include various kinds of hydrographs, such as those showing water level versus time, draw-down versus time or distance, or the level in one well versus that in another. Contour plots in map view are essential for evaluating ground-water flow. Water levels on cross sections are useful in evaluating the relationship between stratigraphic units and water levels. Flow nets can be used in plan or cross-sectional view to estimate flow lines and possible pathways for seepage.
ground water, water level, data presentation, graphical presentation, tabular presentation
Chief hydrogeologist, Woodward-Clyde Consultants, Wayne, NJ