Connect groundwater and streams
See this course’s project requirements
A fictional watershed diagram tracking runoff, infiltration, groundwater and pollution paths, with a supported upstream/downstream prevention choice.
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What to include
- Draw outlet-specific and nested drainage boundaries.
- Label water stores, phase changes and land/plant routes.
- Balance supplied rain budgets and compare fractions.
- Read groundwater/stream exchange cross-sections.
- Trace a possible pollution route without inventing treatment.
- Explain a responsible paper prevention choice and include all changed cases.
Review and revise
Use these criteria to check your work and choose what to improve.
- Method: applies the course-specific rules to the supplied cases with visible intermediate work.
- Accuracy: results agree with the stated facts, units, boundaries and independent checks.
- Reasoning: explains why the result follows and identifies a limitation or unresolved question.
- Transfer: completes changed cases and revises the final project when a relevant assumption changes.
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The idea in everyday life
Supplied cross-sections: G—groundwater arrows point toward and into a stream; L—stream-water arrows point into the underlying aquifer. A separate saturated rock drawing has connected pore spaces. These are labeled paper models, not local well findings.
Groundwater occupies pores and fractures below the surface; it is not generally one underground river. Water can exchange between streams and groundwater depending on the hydraulic conditions. A gaining stream receives groundwater; a losing stream supplies water to the ground. Surface and underground systems can therefore carry connected quantity and quality effects.
Connect groundwater and streams — worked practice
Groundwater occupies pores and fractures below the surface; it is not generally one underground river. Water can exchange between streams and groundwater depending on the hydraulic conditions. A gaining stream receives groundwater; a losing stream supplies water to the ground. Surface and underground systems can therefore carry connected quantity and quality effects.
Supplied cross-sections: G—groundwater arrows point toward and into a stream; L—stream-water arrows point into the underlying aquifer. A separate saturated rock drawing has connected pore spaces. These are labeled paper models, not local well findings.
1. 1. Pores
Mark water in the supplied connected pore spaces.
You should see: Groundwater occupies the saturated pores rather than an invented open cavern.
2. 2. G
Follow arrows crossing into the stream.
You should see: G is a gaining-stream model.
3. 3. L
Follow arrows crossing from the stream into the ground.
You should see: L is a losing-stream model.
4. 4. Connect
Explain why surface pollution can be relevant underground and vice versa.
You should see: Exchanges provide possible transport routes; specific travel times and contaminant behavior need more evidence.
What to finish
Two labeled cross-sections with pore storage and travel-time limits.
Watch for this
The drawings identify possible exchange directions. Travel time and quality effects depend on site properties and the substance involved.
How can I tell I understand it?
Classify a changed exchange direction without assuming every stream has the same condition.
Quick knowledge check
Answer all 3 questions. Get at least 2 right and the lesson completes automatically.
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Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.
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Source & access notes · checked 2026-10-01
Web open/search showed the official page, its topic heading and relevant concept description. This is a content/source check, not a provider endorsement.
Access: Official page retrieved with the web reader on 2026-10-01; interactive tools and videos were not certified by retrieval.
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