Suuri Humalajärvi
Suuri Humalajärvi in Heinävesi, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.3 m visibility. Phosphorus: 22 µg/L. Chlorophyll-a (algae): 11 µg/L. Maximum depth: 67.3 ft.
- Clarity
- 1.3 m
- Max depth
- 20.5 m
Why Suuri Humalajärvi has no A–F grade
Suuri Humalajärvi 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.
Suuri Humalajärvi is a lake in Heinävesi County, Finland with a maximum depth of 67 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2026-06-25. 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 Suuri Humalajärvi
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: 22 µg/L. Chlorophyll-a: 11 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.3 m | Not graded |
| Phosphorus | 22 µg/L | Not graded |
| Chlorophyll-a (Algae) | 11 µg/L | Not graded |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 20.5 m |
Where to stay near Suuri Humalajärvi
Compare lakeside cabins, hotels, and vacation rentals near Suuri Humalajärvi in Heinävesi, 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 Suuri Humalajärvi
Frequently asked questions about Suuri Humalajärvi
What is the water quality of Suuri Humalajärvi?
- Suuri Humalajärvi in Heinävesi, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.3 m visibility. Phosphorus: 22 µg/L. Chlorophyll-a (algae): 11 µg/L. Maximum depth: 67.3 ft.
Is Suuri Humalajärvi safe to swim in?
- Suuri Humalajärvi 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 Suuri Humalajärvi?
- Suuri Humalajärvi has a maximum depth of 67.3 feet.
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Where this data comes from
18 measurements from 1 monitoring station, 2020–2026. 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-vesla18 samples · 2020–2026
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
14355
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: 2026-06-25
Monitoring stations: 1