Coastline Community College - GEOLOGY 105

Lab Lesson 11: Streams and Groundwater

Question1)All of the following stream parameters generally increase downstream EXCEPT for     .

Question 2

Record your answer to Lab Exercise #1,

What is the distance in miles

along the Merced River from the Leidig Meadow footbridge to the El Capitan Bridge?

Question 3

Record your answer to Lab Exercise #1,

What is the difference in elevation between the Leidig Meadow footbridge and El Capitan Bridge?

Question 4

Record your answer to Lab Exercise #1,

What is the stream gradient of the Merced River between the Leidig Meadow footbridge and El Capitan Bridge?

Question 5

Record your answer to Lab Exercise #1,

What was the volume of a cross section at Pohono Bridge on the day its width was 22 feet and its water height was 3.6 feet?

Question 6 Record your answer to Lab Exercise #1,

Assuming that the river’s velocity at the gauge station was 6 ft/sec on that day, what was the discharge of the Merced River at Pohono Bridge?

Question 7

Record your answer to Lab Exercise #1,

If the Merced River reached flood stage, which of the following is most likely to be closed as a result of flooding?

Question 8

Record your answer to Lab Exercise #1,

If the Merced River reached flood stage, which of the locations appears to be the safest?

Questions 9 through 16 are based on Lab Exercise #2: Stream Deposition.

Record your answer to Lab Exercise #2,

In which of the following stream environments were the sediments in Bag A most likely to have been deposited?

Question 10

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In which of the following stream environments were the sediments in Bag B most likely to have been deposited?

Question 11

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In which of the following stream environments were the sediments in Bag C most likely to have been deposited?

Question 12 Record your answer to Lab Exercise #2,

In which of the following stream environments were the sediments in Bag D most likely to have been deposited?

Question 13

Record your answer to Lab Exercise #2,

In which of the following stream environments were the sediments in Bag E most likely to have been deposited?

Question 14

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In which of the following stream environments were the sediments composing sedimentary rock specimen #11 most likely to have been deposited?

Question 15

Record your answer to Lab Exercise #2,

In which of the following stream environments were the sediments composing sedimentary rock specimen #13 most likely to have been deposited?

Question 16

Record your answer to Lab Exercise #2,

In which of the following stream environments were the sediments composing sedimentary rock specimen #17 most likely to have been deposited?

Questions 17

through 20 are based on Lab Exercise #3: Groundwater Flow

Record your answer to Lab Exercise #3,

If there is groundwater contamination at the site, what would be the most likely source?

Question 18

Record your answer to Lab Exercise #3,

Provided the source of any contamination is the strip mall in Figure 11.14, what is the contamination most likely to be?

Question 19

Record your answer to Lab Exercise #3, In which compass direction is the groundwater flowing?

Question 20

Record your answer to Lab Exercise #3,

Which two locations—A, B, C, or D—would be the best places to install groundwater monitoring wells?

Question 21

What percentage of precipitation falling on the land becomes surface water, or runoff, and flows to the sea in river and stream channels?

Question 22

The volume of freshwater held beneath the earth’s surface constitutes as much as          the freshwater contained in lakes, rivers, and streams.

Question 23

An aquifer must be                        .

Question 24

Of the following, the best aquifer would be