Katumajärvi
Hämeenlinna, FinlandView mapDirections
Syke publishes the water-quality measurements for Katumajärvi. Here is what has been measured.
- 55 ft max depth
- Limited data
Katumajärvi in Hämeenlinna, Finland has official water-quality measurements, shown as reported. Water clarity: 2.8 m visibility. Phosphorus: 13.5 µg/L. Chlorophyll-a (algae): 5.1 µg/L. Maximum depth: 54.8 ft.
How Katumajärvi is classified
Katumajärvi in Finland is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Finnish Environment Institute (Syke) and the ELY Centres.
Katumajärvi is a lake in Hämeenlinna County, Finland with a maximum depth of 55 feet.
Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2026-07-14. Methodology: how these readings are compared.
What Katumajärvi is good for
From access and monitoring records, not editorial picks.
- Deep water54.8 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Katumajärvi is safe to swim in today is a call for the Finnish Environment Institute (Syke) and the ELY Centres and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Katumajärvi
These are the measurements Syke publishes for Katumajärvi. More on the source.
Moderate clarity, visible to about 9.2 ft. Phosphorus 13.5 µg/L. Chlorophyll-a 5.1 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.8m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 13.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 5.1µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Katumajärvi
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
16.7 m
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Fishing Katumajärvi
Frequently asked questions about Katumajärvi
Where is Katumajärvi?
- Katumajärvi is a lake in Hämeenlinna, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Katumajärvi?
- Katumajärvi in Hämeenlinna, Finland has official water-quality measurements, shown as reported. Water clarity: 2.8 m visibility. Phosphorus: 13.5 µg/L. Chlorophyll-a (algae): 5.1 µg/L. Maximum depth: 54.8 ft.
Is Katumajärvi safe to swim in?
- Katumajärvi 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 Katumajärvi?
- Katumajärvi has a maximum depth of 54.8 feet.
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Where this data comes from
66 measurements from 5 monitoring stations, 2017–2026. 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-vesla66 samples · 2017–2026
Analytical methods
- SYKE VESLA
Monitoring station identifiers (5)
1682169216766102591480
Authority classifications are shown as the authority published them. See where the data comes from and data sources.