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Bohling, Geoffrey C. / A ground penetrating radar study of water table elevation in a portion of Wisconsin's central sand plain
[DNR-050] (1988)

I. Introduction: motivation and objectives,   pp. 1-9 PDF (2.5 MB)


Page 8

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In this study, locations of GPR data points and piezometers are
expressed in terms of miles east of County Highway F and miles north of
Birch Street. County Highway F runs north-south along the western edge
of Figure 2, intersecting with State Highway 54 southwest of Love Creek.
Birch Street runs along the southern edge of Figure 2. It is named Birch
Drive east of Monroe Avenue, which is two miles east of County Highway
F. It should also be noted that Drainage Ditch Number 1 runs parallel to
and just north of Birch Drive east of Monroe Avenue. West of Monroe
Avenue, Drainage Ditch Number 1 flows southwest, away from the study
area.
Most of the piezometers in the field area were installed for an ongo-
ing study of aldicarb contamination being carried out by George Kraft of
the Department of Soil Science, University of Wisconsin-Madison (Kraft,
in preparation). A number of the piezometers in the eastern portion of the
area were installed for the previously mentioned study by Harkin et al.
(1986) who reported that water samples from a number of these piezome-
ters have had high concentrations of aldicarb residues, some over 100 ppb,
and that two domestic wells in the study area have also had aldicarb levels
higher than the enforcement standard of 10 ppb.
For the analysis described in Chapter V, water table return times
obtained from radar records are compared to water levels observed in
those observation wells shown in Figure 2 which are next to roads where


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