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Scientific Investigations Report 2007–5237

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5237

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Table 5. Values of horizontal and vertical hydraulic conductivity for hydrofacies based on field data and model calibration in the La Pine, Oregon, study area.

[Abbreviations: Kh, horizontal hydraulic conductivity Kv, vertical hydraulic conductivity]

Hydrofacies Horizontal hydraulic
conductivity, Kh
(feet per day)		   Vertical hydraulic
conductivity, Kv
(feet per day)
Probable
range		 Calibrated
value		 Probable
range		 Calibrated
value
Fluvial clay-silt 1–20 5 0.001–2 0.05
Fluvial sand 10–100 40 0.01–10 .40
Fluvial gravel 75–150 75 0.075–15 .75
Lacustrine clay-silt 0.1–10 10 0.0001–1 .10
Basalt 100–2,500 150 0.01–250 1.5

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