Water Wells & Saltwater Intrusion
Jan 21, 2016
Water Wells &Saltwater Intrusion
What is a Water Well?
Part 1 Draw a water well in the ground
Part 2 Show how water gets into the well
AQUIFER: Saturated rock and sediment that water can flow through
Part 3 List places where this groundwater comes
from
Part 4 Predict what happens as you take too much
water out of the well.
Part 5 How can we extract more water from the
well when the groundwater level has dropped?
RECHARGE
DRILL DEEPER
Part 6 Draw a well that is near the ocean. Indicate
what you think the groundwater looks like between the ocean and the well.
OCEAN
Part 7 Take your model of a well near the ocean. Slowly pour a small amount of the blue
ocean water on the opposite end of the well.
Draw water up through your well. Collect the water.
As water is drawn from the well, predict what will happen.
WELLOcean AreaPour BLUE WATER HERE
Part 8 Draw what happens to the fresh and ocean
groundwater as water is continually drawn up the well.
OCEAN
Saltwater intrusion: movement of saltwater into freshwater aquifer
SCENARIO
Saltwater is approaching your water wells
You have been hired to come up with a solution!!!!
Design a solution to prevent saltwater intrusion
You and your team will give a 5 minute PowerPoint presentation to the class
Consider◦ Cost◦ Feasibility (convenience)◦ Community priorities◦ Reliability◦ Aesthetics◦ Social/cultural/environmental impacts◦ Timeline/schedule
Presentations The class (“city counsel”) will vote on the
best solution for the city