Kortejärvi
Kortejärvi in Orivesi, Finland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2.4 µg/L.
Why Kortejärvi has no A–F grade
Kortejärvi in Finland is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the Finnish Environment Institute (Syke) and the ELY Centres.
Kortejärvi is a lake in Orivesi County, Finland.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2017-08-10. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Kortejärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 14 µg/L. Chlorophyll-a: 2.4 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 14 µg/L | Not graded |
| Chlorophyll-a (Algae) | 2.4 µg/L | Not graded |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Kortejärvi
Compare lakeside cabins, hotels, and vacation rentals near Kortejärvi in Orivesi, Finland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Kortejärvi
Frequently asked questions about Kortejärvi
What is the water quality of Kortejärvi?
- Kortejärvi in Orivesi, Finland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2.4 µg/L.
Is Kortejärvi safe to swim in?
- Kortejärvi 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, 2017. 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 · 2017
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
84771
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2017-08-10
Monitoring stations: 1