36.7 - Well Constants
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Practice Questions
Test your understanding with targeted questions
What is the Theis equation used for?
💡 Hint: Look for keywords like drawdown and pumping tests in your notes.
Define drawdown in the context of groundwater.
💡 Hint: Think about what happens to the water level when you extract water.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Theis equation calculate?
💡 Hint: Focus on what happens to water levels when pumping occurs.
True or False: Transmissibility indicates how easily water can move through an aquifer.
💡 Hint: Think about the flow dynamics of groundwater.
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Challenge Problems
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Consider a scenario where a well shows a drawdown of 4 meters after 10 hours of pumping at a rate of 50 m³/day. If the transmissibility of the aquifer is 200 m²/day, estimate the distance 'r' from the well that would yield the observed drawdown using the Theis equation.
💡 Hint: Break down each piece of the equation and consider how you’d isolate r.
Using empirical data from aquifer tests, describe how you would create a time-drawdown curve and calculate the well constants.
💡 Hint: Remember, the curve serves as a visual guide to understanding aquifer behavior.
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