Korpijärvi
Korpijärvi in Parikkala, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 6.2 m visibility. Phosphorus: 6.3 µg/L. Chlorophyll-a (algae): 2 µg/L. Maximum depth: 26.2 ft.
- Clarity
- 6.2 m
- Max depth
- 8 m
Why Korpijärvi has no A–F grade
Korpijärvi 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 water clarity, phosphorus and algae (chlorophyll-a).
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.
Korpijärvi is a lake in Parikkala County, Finland with a maximum depth of 26 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-08-04. 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 Korpijärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Crystal clear, you can see 20.3 ft down. Phosphorus level: 6.3 µg/L. Chlorophyll-a: 2 µg/L. Trophic State Index: 34.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.2 m | Not graded |
| Phosphorus | 6.3 µg/L | Not graded |
| Chlorophyll-a (Algae) | 2 µg/L | Not graded |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8 m |
Where to stay near Korpijärvi
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Fishing Korpijärvi
Frequently asked questions about Korpijärvi
What is the water quality of Korpijärvi?
- Korpijärvi in Parikkala, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 6.2 m visibility. Phosphorus: 6.3 µg/L. Chlorophyll-a (algae): 2 µg/L. Maximum depth: 26.2 ft.
Is Korpijärvi safe to swim in?
- Korpijärvi 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.
How deep is Korpijärvi?
- Korpijärvi has a maximum depth of 26.2 feet.
Explore Korpijärvi across LakeGrade
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Where this data comes from
15 measurements from 1 monitoring station, 2018–2025. 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-vesla15 samples · 2018–2025
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
72153
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: 2025-08-04
Monitoring stations: 1