SOLUTION: Where South Carolina’s surface water comes from
Precipitation 103.0 MAF/yr
Net imports from out of state 1.7 MAF/yr
Groundwater Pumping 2.0
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Question 1048129: Where South Carolina’s surface water comes from
Precipitation 103.0 MAF/yr
Net imports from out of state 1.7 MAF/yr
Groundwater Pumping 2.0 MAF/yr
Total: 106.7 MAF/yr
Where South Carolina’s surface water goes
Evaporation & transpiration 61.0 MAF/yr
Agriculture 3.0 MAF/yr
Flows for wild & scenic rivers, and
for estuary salinity standards 11.5 MAF/yr
Other river flow to the ocean 27.2 MAF/yr
Urban/industrial use 4 MAF/yr
Total: 106.7 MAF/yr
1) What percentage of precipitation is available, after evaporation and
transpiration, for use by humans and ecosystems? 1pt
2) What is the sum of available water (that is, the total supply of water for
Wild & Scenic Rivers-maintaining estuary salinity standards, agriculture,
urban/industrial use, and other flow to the ocean)? 1
3) What percentage of available water goes to human uses (agriculture and
urban/industrial use)? 1pt %
4) If precipitation, statewide, decreases by 20%, evaporation and transpiration
stay constant, and net imports from out of state and groundwater pumping
stay constant, and agricultural and urban uses remain unchanged, what
amount of water is left for rivers and flows to the ocean? 2pt
5) By what percentage has this 20% drop in precipitation decreased the
amount of water that went to rivers and flows to the ocean? 3 pt
6) Therefore a ___________% decrease in rainfall led to a ___________% decrease in river runoff. 1 pt
7) Can this amount of runoff (in #4) accommodate the current needs of
agriculture, urban/industrial users, and Wild & Scenic rivers/estuary salinity
standards? By what percentage? 2 pt
Yes or No
%
8) If we use all of the water available after the 20% decrease in rainfall how much water is left for river flow to the
ocean? What is the consequence of not curtailing our water consumption during a drought? (1 points)
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
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