Hydrogeologic cross-sections

FIGURE 20.12 Monsanto Injection Facility hydrogeologic cross-section. (From U.S. EPA, Assessing the Geochemical Fate of Deep-Well-Injected Hazardous Waste A Reference Guide, EPA/625/6-89/025a, U.S. EPA, Cincinnati, OH, June 1990.)... 

FIGURE 3.17 Example of water table contour map and hydrogeologic cross section showing two groundwater flow regimes. 

FIGURE 12.14 Hydrogeologic cross section at refinery site. 

FIGURE 12.17 Generalized hydrogeologic cross section showing occurrence of perched and water table LNAPL. Approximate position of upper and lower informal units of the Lakewood Formation as shown on the left margin. Vertical exaggeration equals 25 1. (After Testa et al., 1989.)... 

FIGURE 12.22 Hydrogeologic cross section showing lithofacies and LNAPL presence beneath a refinery site. 

FIGU RE 13.10 Hydrogeologic cross section showing stratigraphic control of distribution of... 

Figure 7.26. Hydrogeologic cross-section of the Devonshire groundwater lens. The X s denote a calculated fit to the 50% isoline of relative salinity (e) using the Ghyben-Herzberg-Dupuit model. (After Vacher, 1974, 1978.)...

Fig. 2. Schematic hydrogeological cross-section (after Dassibat et al., 1975).

The model is subdivided into layers of various thickness over its depth. The layer thickness cases were defined by averaging the data on hydrogeologic cross sections of the boreholes TA -4,5,8, rX -l,22, FK-3, 11,6,51,23, 21, 19, rAT-2, re-6,and re-8. 

Fig. 8 presents vertical cross-section of the migration model. The imdergroimd water flow and radioactivity spread from the storage is considered in a three-layer model. The model layers have different coefficients of conductivity and porosity. For the layer of placement of the nuclear material storage in the hydrogeological task, condition of zero flow is used [10]. 

Figure 2.23 Cross-sections showing the theoretical distribution of hydraulic head and gravity-induced groundwater flow pattern in two inhomogeneous drainage basins with laterally extensive hydrogeological units and a complex ground surface geometry (after Freeze and Witherspoon, 1967, Water Resources Researdi, Vol. 3, no. 2, Fig. 3, p. 628. Copyright by the American Geophysical Union).

Figure 3. Cross-section showing major hydrogeologic units in the Fox River valley (see Fig. la for location of section A-A j. The regional recharge area for the St. Peter and deep sandstone aquifers occurs between the erosional edge of the Sinnipee and the regional ground water divide (denoted as "B " in figure). Modified from Batten and Bradbury (1996).

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