Maivajärvi
Maivajärvi in Kuusamo, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.3 m visibility. Phosphorus: 9.8 µg/L. Chlorophyll-a (algae): 3 µg/L.
- Clarity
- 1.3 m
Why Maivajärvi has no A–F grade
Maivajärvi 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.
Maivajärvi is a lake in Kuusamo County, Finland.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-10-18. 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 Maivajärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 4.3 ft. Phosphorus level: 9.8 µg/L. Chlorophyll-a: 3 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.3 m | Not graded |
| Phosphorus | 9.8 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3 µg/L | Not graded |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Maivajärvi
Compare lakeside cabins, hotels, and vacation rentals near Maivajärvi in Kuusamo, 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 Maivajärvi
Frequently asked questions about Maivajärvi
What is the water quality of Maivajärvi?
- Maivajärvi in Kuusamo, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.3 m visibility. Phosphorus: 9.8 µg/L. Chlorophyll-a (algae): 3 µg/L.
Is Maivajärvi safe to swim in?
- Maivajärvi 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 Maivajärvi?
- The available depth estimate for Maivajärvi is shallower than its measured water clarity, which cannot be right, so no depth is shown.
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Where this data comes from
37 measurements from 2 monitoring stations, 2016–2023. 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-vesla37 samples · 2016–2023
Analytical methods
- SYKE VESLA
Monitoring station identifiers (2)
8069180692
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: 2023-10-18
Monitoring stations: 2