Water Quality
2026 season
Type: Hybrid
Divisions: B, C
Participants: Up to 2
Approx. Time: 50 minutes
Allowed Resources: See current‑year rules; policies vary by event and season.
Limnology and aquatic ecology with data interpretation and potential hands-on components depending on level.
- Water chemistry (pH, DO, nitrates, phosphates); indicator species
- Food webs; eutrophication; watershed management
- Macroinvertebrate ID; biotic indices (e.g., EPT)
Allowed materials: Notes/binder and non-programmable calculator typically allowed; specific equipment varies by tournament.
Official references
Sample notesheet
Download a printable, rule-compliant sample notesheet. Customize with your notes.
Study roadmap
- Build a reference for indicator taxa and tolerance values
- Practice chemical parameter calculations and unit conversions
- Analyze sample datasets; explain trends and causes