FIGURE 15-1

Simplified cross section developed from site and subsurface characterization.

FIGURE 15-2

Early geophysicist (or modern diviner).

FIGURE 15-3

Interpretation of a historic air photo of a landfill.

FIGURE 15-4

Workers in Level C protective equipment

sampling a tank truck.

FIGURE 15-5

Schematic of seismic survey.

FIGURE 15-6

Schematic of resistivity survey.

FIGURE 15-7

Terrain conductivity contours.

FIGURE 15-8

Ground-penetrating radar.

FIGURE 15-9

Magnetometer survey results.

FIGURE 15-10

Continuous flight augers.

FIGURE 15-11

Solid- and hollow-stem augers.

FIGURE 15-12

Mud rotary drilling.

FIGURE 15-13

Standard penetration test.

FIGURE 15-15

Vane shear testing.

FIGURE 15-16

Correction to vane shear test results.

FIGURE 15-17

Dilatometer testing.

FIGURE 15-18

Water level measurement.

FIGURE 15-20

Thin-wall samplers.

FIGURE 15-20

Thin-wall samplers.

FIGURE 15-21

Rock coring equipment.

FIGURE 15-22

Typical monitoring well.

FIGURE 15-23

Perched water table.

FIGURE 15-24

Piezometer cluster in unconfined/confined aquifer system.

FIGURE 15-25

Piezometers in confined aquifer.

FIGURE 15-26

Multiple and nested wells.

FIGURE 15-27

Monitoring rock formations.

FIGURE 15-28

Multilayer aquifer system.

FIGURE 15-29

Drilling through contaminated aquifer.

FIGURE 15-30

Principle of soil gas surveys.

FIGURE 15-31

Mobile laboratory used for soil analysis.

FIGURE 15-32

Interior of mobile laboratory.

FIGURE 15-33

Site map.

FIGURE 15-34

GIS representation of contaminated

soil (Scenario II).

FIGURE 15-35

GIS representation of contaminated soil (Scenario V).

FIGURE 15-36

Contour map.

FIGURE 15-37

Three-dimensional representation of site topography.

FIGURE 15-38

Typical boring log.

FIGURE 15-39

Geologic profile.

FIGURE 15-40

Structural contour.

FIGURE 15-41

Isopac map.

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Case Study

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FIGURE 15-43

Groundwater contours.