Vähä Haapajärvi
Vähä Haapajärvi in Ähtäri, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.3 m visibility. Phosphorus: 21 µg/L. Maximum depth: 16.4 ft.
- Clarity
- 1.3 m
- Max depth
- 5 m
Why Vähä Haapajärvi has no A–F grade
Vähä Haapajärvi 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 and phosphorus, but not 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.
Vähä Haapajärvi is a lake in Ähtäri County, Finland with a maximum depth of 16 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-03-22. 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 Vähä Haapajärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 4.1 ft. Phosphorus level: 21 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.25 m | Not graded |
| Phosphorus | 21 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 5 m |
Where to stay near Vähä Haapajärvi
Compare lakeside cabins, hotels, and vacation rentals near Vähä Haapajärvi in Ähtäri, 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 Vähä Haapajärvi
Frequently asked questions about Vähä Haapajärvi
What is the water quality of Vähä Haapajärvi?
- Vähä Haapajärvi in Ähtäri, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.3 m visibility. Phosphorus: 21 µg/L. Maximum depth: 16.4 ft.
Is Vähä Haapajärvi safe to swim in?
- Vähä Haapajärvi 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 Vähä Haapajärvi?
- Vähä Haapajärvi has a maximum depth of 16.4 feet.
Explore Vähä Haapajärvi across LakeGrade
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Where this data comes from
8 measurements from 2 monitoring stations, 2018–2021. 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-vesla8 samples · 2018–2021
Analytical methods
- SYKE VESLA
Monitoring station identifiers (2)
386785049
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: 2021-03-22
Monitoring stations: 2