Index to all pages:

Quiz 3: Beyond the Basics

Let's move on to something a little more challenging. This quiz will test your knowledge of things that go beyond just the basics.


In most years, the largest amount of water discharged from the Edwards goes to:

a) springflows
b) domestic use
c) industrial use
d) irrigation

Recharge to the Edwards:

a) varies widely from year to year
b) occurs mainly in creek beds
c) happens where water goes down along fault planes
d) is the same quality when it comes out at wells and springs
e) all except d

Edwards Aquifer springs are usually groupings of hundreds or even thousands of small springs, with a few large ones.

a) true
b) false

In this zone, highly faulted and fractured Edwards limestones outcrop at the land surface, allowing large quantities of water to flow into the Aquifer.

a) Contributing Zone
b) Artesian Zone
c) Recharge Zone
d) Twilight Zone

An artesian aquifer is a geologic formation in which water is under sufficient hydrostatic pressure to be discharged to the surface without pumping. The Edwards is this type of aquifer.

a) true
b) false

Most cities spend millions every year on water treatment. In our region, Aquifer protection is all about protecting the ability of the Edwards to naturally filter and cleanse stormwater runoff, so that we don't have to pay for it.

a) true
b) false

This word describes flowing wells and springs, where hydraulic pressure is sufficient to force water up to the land surface.

a) confined
b) dry
c) piezometric
d) artesian

Changes in hydraulic pressure within the Aquifer are reflected in rising or falling well levels and are monitored at the:

a) J-34 index well
b) J-17 index well
c) San Pedro Springs
d) Tower of the Americas

The rising and falling level of the J-17 index well is a measure of:

a) pressure in the artesian zone
b) how far down to the water
c) how many feet of water are left
d) how much an iPad costs

Most recharge to the Edwards occurs in creekbeds, where exposed faults and fractures allow water to flow underground.

a) true
b) false