Surface Water

Question 1

Watersheds (drainage basins)

Answer 1

Watershed is essentially same as drainage basin, all the areas that drained by gravity into a body of water, smaller watersheds usually exist within large watersheds

Question 2

Drainage divides

Answer 2

High area that separates watersheds

Question 3

Weather related event that causes most deaths

Answer 3

?

Question 4

Point source pollution

Answer 4

?The U.S. Environmental Protection Agency (EPA) defines point source pollution as “any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack” (Hill, 1997). Factories and sewage treatment plants are two common types of point sources

Question 5

Non point source pollution

Answer 5

?Nonpoint Source (NPS) pollution is caused by rainfall or snowmelt moving over and through the ground, it picks up and carries natural and human-made pollutants, depositing them into lakes, rivers, wetlands, coastal waters and ground waters.

Question 6

Relationship of amount of impervious surface and timing

Answer 6

?As impervious surface increases in urban areas, so does runoff. … addition to contamination, the amount of runoff increases with urbanization.

Question 7

Amount of water in flooding events (diagram shown in class and on handout)

Answer 7

Where there are plants and no urbanization the level of discharge doesn’t go as high and comes later(longer lag time)

Where there are houses streets and roads, urbanization, it doesn’t take long to flood, level of discharge goes higher , flood Peak higher and lag time is not long

Question 8

General situation in the Wilson’s Creek drainage basin

Answer 8

Comparison before and after last expansion of WE waste water treatment plant, effect also of urbanization

Question 9

Water quality study

Answer 9

?

Question 10

Biological water tests and chemical water tests

Answer 10

?