Jaakonjärvi
Jaakonjärvi in Utajärvi, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3.4 m visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 4 µg/L. Maximum depth: 24 ft.
- Clarity
- 3.4 m
- Max depth
- 7.3 m
Why Jaakonjärvi has no A–F grade
Jaakonjärvi 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.
Jaakonjärvi is a lake in Utajärvi County, Finland with a maximum depth of 24 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-10-15. Grade methodology: LakeGrade methodology.
Watch Jaakonjärvi water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Jaakonjärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Good clarity, visible to about 11 ft. Phosphorus level: 10 µg/L. Chlorophyll-a: 4 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.35 m | Not graded |
| Phosphorus | 10 µg/L | Not graded |
| Chlorophyll-a (Algae) | 4 µg/L | Not graded |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 7.3 m |
Where to stay near Jaakonjärvi
Compare lakeside cabins, hotels, and vacation rentals near Jaakonjärvi in Utajärvi, 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.
Top-rated places to stay near Jaakonjärvi
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Jaakonjärvi
Frequently asked questions about Jaakonjärvi
What is the water quality of Jaakonjärvi?
- Jaakonjärvi in Utajärvi, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3.4 m visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 4 µg/L. Maximum depth: 24 ft.
Is Jaakonjärvi safe to swim in?
- Jaakonjärvi 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 Jaakonjärvi?
- Jaakonjärvi has a maximum depth of 24 feet.
Explore Jaakonjärvi across LakeGrade
More lakes in Finland
Where this data comes from
11 measurements from 1 monitoring station, 2024. 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-vesla11 samples · 2024
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
28331
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: 2024-10-15
Monitoring stations: 1