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LakeQuality

Längelmävesi

Kangasala, FinlandView mapDirections

Syke publishes the water-quality measurements for Längelmävesi. Here is what has been measured.

Clarity
2 m
Typical for Finland
Secchi · sampled 2026
Phosphorus
13 µg/L
Typical for Finland
Measured by Syke
Chlorophyll-a
6.5 µg/L
Typical for Finland
Measured by Syke
Max depth
47 m
Bathymetric survey
  • 154 ft max depth
  • Limited data

Längelmävesi in Kangasala, Finland has official water-quality measurements, shown as reported. Water clarity: 2 m visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 6.5 µg/L. Maximum depth: 154.2 ft.

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How Längelmävesi is classified

Längelmävesi 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.

Längelmävesi is a lake in Kangasala County, Finland with a maximum depth of 154 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2026-07-30. Methodology: how these readings are compared.

What Längelmävesi is good for

From access and monitoring records, not editorial picks.

  • Deep water154.2 ft surveyed max depth

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Längelmävesi 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.

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Water quality measurements for Längelmävesi

These are the measurements Syke publishes for Längelmävesi. More on the source.

Murky, only visible to about 6.6 ft. Phosphorus 13 µg/L. Chlorophyll-a 6.5 µg/L. TSI 47.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2mMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus13µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)6.5µg/LMeasured, 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.47Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Längelmävesi

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

47 m

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Stays near Längelmävesi

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Fishing Längelmävesi

Frequently asked questions about Längelmävesi

Where is Längelmävesi?

Längelmävesi is a lake in Kangasala, Finland. This page reports official water-quality measurements, shown as reported.

What is the water quality of Längelmävesi?

Längelmävesi in Kangasala, Finland has official water-quality measurements, shown as reported. Water clarity: 2 m visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 6.5 µg/L. Maximum depth: 154.2 ft.

Measurements on this page ↑

Is Längelmävesi safe to swim in?

Längelmävesi 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.

Swimming on this page ↑

How deep is Längelmävesi?

Längelmävesi has a maximum depth of 154.2 feet.

Where this data comes from

411 measurements from 5 monitoring stations, 2016–2026. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Finnish Environment Institute (Syke) and ELY Centressyke-vesla411 samples · 2016–2026

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (5)
  • 9261
  • 9284
  • 9430
  • 80840
  • 9229

Authority classifications are shown as the authority published them. See where the data comes from and data sources.