Kaatro Lake
Kaatro Lake in Suonenjoki, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 4.4 m visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 7.9 µg/L. Maximum depth: 44.3 ft.
- Clarity
- 4.4 m
- Max depth
- 13.5 m
Why Kaatro Lake has no A–F grade
Kaatro Lake 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.
Kaatro Lake is a lake in Suonenjoki County, Finland with a maximum depth of 44 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-08-17. Grade methodology: LakeGrade methodology.
Watch Kaatro Lake 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 Kaatro Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Good clarity, visible to about 14.4 ft. Phosphorus level: 12 µg/L. Chlorophyll-a: 7.9 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.4 m | Not graded |
| Phosphorus | 12 µg/L | Not graded |
| Chlorophyll-a (Algae) | 7.9 µg/L | Not graded |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 13.5 m |
Where to stay near Kaatro Lake
Compare lakeside cabins, hotels, and vacation rentals near Kaatro Lake in Suonenjoki, 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 Kaatro Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Kaatro Lake
Frequently asked questions about Kaatro Lake
What is the water quality of Kaatro Lake?
- Kaatro Lake in Suonenjoki, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 4.4 m visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 7.9 µg/L. Maximum depth: 44.3 ft.
Is Kaatro Lake safe to swim in?
- Kaatro Lake 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 Kaatro Lake?
- Kaatro Lake has a maximum depth of 44.3 feet.
Explore Kaatro Lake across LakeGrade
More lakes in Finland
Where this data comes from
8 measurements from 1 monitoring station, 2020–2022. 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 · 2020–2022
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
21326
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: 2022-08-17
Monitoring stations: 1