Gennarbyträsket
Raasepori, FinlandView mapDirections
Syke publishes the water-quality measurements for Gennarbyträsket. Here is what has been measured.
- Limited data
Gennarbyträsket in Raasepori, Finland has official water-quality measurements, shown as reported. Phosphorus: 13 µg/L.
How Gennarbyträsket is classified
Gennarbyträsket in Finland is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Finnish Environment Institute (Syke) and the ELY Centres.
Gennarbyträsket is a lake in Raasepori County, Finland.
Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2018-07-17. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Gennarbyträsket is safe to swim in today is a call for the Finnish Environment Institute (Syke) and the ELY Centres and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Gennarbyträsket
These are the measurements Syke publishes for Gennarbyträsket. More on the source.
No clarity data. Phosphorus 13 µg/L. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 13µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Frequently asked questions about Gennarbyträsket
Where is Gennarbyträsket?
- Gennarbyträsket is a lake in Raasepori, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Gennarbyträsket?
- Gennarbyträsket in Raasepori, Finland has official water-quality measurements, shown as reported. Phosphorus: 13 µg/L.
Is Gennarbyträsket safe to swim in?
- Gennarbyträsket has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
3 measurements from 3 monitoring stations, 2018. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Finnish Environment Institute (Syke) and ELY Centres
syke-vesla3 samples · 2018
Analytical methods
- SYKE VESLA
Monitoring station identifiers (3)
853078530985310
Authority classifications are shown as the authority published them. See where the data comes from and data sources.