Tjärnen Lake
Inkoo, FinlandView mapDirections
Syke publishes the water-quality measurements for Tjärnen Lake. Here is what has been measured.
- Limited data
Tjärnen Lake in Inkoo, Finland has official water-quality measurements, shown as reported. Water clarity: 3.5 m visibility. Phosphorus: 3.4 µg/L.
How Tjärnen Lake is classified
Tjärnen Lake 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 water clarity and phosphorus, but not 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.
Tjärnen Lake is a lake in Inkoo County, Finland.
Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2020-08-20. Methodology: how these readings are compared.
What Tjärnen Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.5 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Tjärnen Lake 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 Tjärnen Lake
These are the measurements Syke publishes for Tjärnen Lake. More on the source.
Good clarity, visible to about 11.5 ft. Phosphorus 3.4 µg/L. TSI 32.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.5m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 3.4µg/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. | 32 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Tjärnen Lake
Answers come straight from the public measurements and survey records on this page.
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Fishing Tjärnen Lake
Frequently asked questions about Tjärnen Lake
Where is Tjärnen Lake?
- Tjärnen Lake is a lake in Inkoo, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Tjärnen Lake?
- Tjärnen Lake in Inkoo, Finland has official water-quality measurements, shown as reported. Water clarity: 3.5 m visibility. Phosphorus: 3.4 µg/L.
Is Tjärnen Lake safe to swim in?
- Tjärnen Lake 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
2 measurements from 1 monitoring station, 2020. 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-vesla2 samples · 2020
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
89508
Authority classifications are shown as the authority published them. See where the data comes from and data sources.