Geological Cross Section and Induced Recharge Quiz

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What percentage of the earth's water is readily available for human use?

Over 50%

Around 10%

Between 25-30%

Less than 1% (correct)

Which geological formations store and allow slow movement of groundwater?

Slate

Sandstone (correct)

Shale

Limestone

What refers to the measure of the void spaces in a material?

Permeability

Porosity (correct)

Hydraulic conductivity

Saturated zone

What is the geological term for the top of the zone of saturation?

Water table Signup and view all the answers

Which type of soil has the most rapid permeability?

Coarse-textured sandy & gravel soils Signup and view all the answers

What is the most common mode of contaminant migration in the subsurface with groundwater?

Advective flow with groundwater Signup and view all the answers

Which method can be used to increase the accuracy of the geologic cross section model?

Using well cuttings Signup and view all the answers

What is the term for the stretching of the cone of depression to nearby water bodies such as lakes or streams?

Induced recharge Signup and view all the answers

What is the purpose of using appropriate vertical and horizontal scales when constructing a geologic cross section profile?

To enlarge the cross section to see additional detail Signup and view all the answers

What represents discrete points of knowledge about the subsurface geology in a geologic cross section profile?

Geologic information from each well bore Signup and view all the answers

What can be used to help understand geologic conditions that occur in specific areas of a geologic cross section?

Driller’s logs Signup and view all the answers

In the context of constructing a geologic cross section profile, what can be used to guide in selecting the appropriate scales?

Deciding what the geologic cross section is going to be used for Signup and view all the answers

What type of lines should be used to indicate uncertainty or inferred data in a geologic cross section profile?

Dotted lines Signup and view all the answers

What is the purpose of incorporating a legend into a geologic cross-section profile?

To explain the types of geologic materials present Signup and view all the answers

Under the BC Groundwater Protection Regulation, what must be done at the end of the service life of a water well?

It must be properly deactivated and ultimately closed Signup and view all the answers

What role do groundwater wells play according to the BC Groundwater Protection Regulation?

They are used by industries to meet water needs Signup and view all the answers

What is the purpose of a surface seal in groundwater wells according to the BC Groundwater Protection Regulation?

To prevent contaminants from entering the well from the surface or shallow subsurface zone Signup and view all the answers

What should be used to indicate reasonably certain relations between discrete data points on a geologic cross section profile?

Solid lines Signup and view all the answers