Characterization of Aquifer Heterogeneity Using Cyclostratigraphy and Geophysical Methods in the Upper Part of the Karstic Biscayne Aquifer, Southeastern Florida—Water Resources Investigations Report 03-4208

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Figure 27. Heat-pulse flowmeter measurement of relative borehole transmissivity, indicating that limestone of the
upper part of the Biscayne aquifer can be subdivided into several flow and diffuse zones and a semiconfining unit.
Initial results show: (1) HFC5 is interpreted as one single flow zone, (2) the basal part of HFC4 is interpreted to form a
local flow zone, (3) the basal part of HFC3a forms a flow zone, and (4) the top of HFC3a has potential to act as a local
flow zone.

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