Trace a possible nonpoint pollution route
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
Fictional map: loose ordinary litter near a paved yard; rain arrows to an inlet; inlet connects to Creek W without a stated treatment step; Creek W joins River J. Separate dissolved-material route could infiltrate into groundwater, but its behavior and concentration are not supplied.
Runoff can pick up material from dispersed land sources and carry it through drains, streams or infiltration pathways. A possible route does not prove that a particular source caused a measured problem. Trace source, transport, receiving water and missing evidence; never handle unknown material to complete this lesson.
Trace a possible nonpoint pollution route — worked practice
Runoff can pick up material from dispersed land sources and carry it through drains, streams or infiltration pathways. A possible route does not prove that a particular source caused a measured problem. Trace source, transport, receiving water and missing evidence; never handle unknown material to complete this lesson.
Fictional map: loose ordinary litter near a paved yard; rain arrows to an inlet; inlet connects to Creek W without a stated treatment step; Creek W joins River J. Separate dissolved-material route could infiltrate into groundwater, but its behavior and concentration are not supplied.
1. 1. Source
Mark the supplied litter location separately from receiving water.
You should see: Yard is the possible source; creek and river are receiving routes.
2. 2. Transport
Trace the runoff path through every stated connection.
You should see: Yard→inlet→Creek W→River J.
3. 3. Reserve
Avoid inventing a treatment facility.
You should see: No treatment is supplied, so the diagram cannot assume removal.
4. 4. Evidence
State what would be needed to attribute actual pollution.
You should see: Material identification, timing, concentrations and other sources would require appropriate official investigation.
What to finish
A source-to-receiving-water diagram with missing evidence noted.
Watch for this
A connected pathway can explain how material could move. Establishing actual cause needs substance, timing and competing-source evidence.
How can I tell I understand it?
Revise a changed creek connection without preserving the obsolete route.
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.
Reuse: Original fictional teaching cases, calculations, questions and examples; link and short factual paraphrase only. No copied source exercises or illustrations.
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.
Reuse: Original fictional teaching cases, calculations, questions and examples; link and short factual paraphrase only. No copied source exercises or illustrations.
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