Orijärvi
Orijärvi in Mikkeli, Finland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 9.5 µg/L. Maximum depth: 29.2 ft.
- Max depth
- 8.9 m
Why Orijärvi has no A–F grade
Orijärvi 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, but not water clarity 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.
Orijärvi is a lake in Mikkeli County, Finland with a maximum depth of 29 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-09-22. 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 Orijärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 9.5 µg/L. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 9.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8.9 m |
Where to stay near Orijärvi
Compare lakeside cabins, hotels, and vacation rentals near Orijärvi in Mikkeli, 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 Orijärvi
Frequently asked questions about Orijärvi
What is the water quality of Orijärvi?
- Orijärvi in Mikkeli, Finland has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 9.5 µg/L. Maximum depth: 29.2 ft.
Is Orijärvi safe to swim in?
- Orijärvi 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 Orijärvi?
- Orijärvi has a maximum depth of 29.2 feet.
Explore Orijärvi across LakeGrade
More lakes in Finland
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)
13469
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: 2020-09-22
Monitoring stations: 1