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LakeQuality

Lounaja Lake

Suomussalmi, FinlandView mapDirections

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

Clarity
1.9 m
Typical for Finland
Secchi · sampled 2020
Phosphorus
6.4 µg/L
Less phosphorus than most
Measured by Syke
Chlorophyll-a
3.2 µg/L
Less algae than most
Measured by Syke
Max depth
18 m
Bathymetric survey
  • 59 ft max depth
  • Limited data

Lounaja Lake in Suomussalmi, Finland has official water-quality measurements, shown as reported. Water clarity: 1.9 m visibility. Phosphorus: 6.4 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Maximum depth: 59.1 ft.

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How Lounaja Lake is classified

Lounaja Lake 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.

Lounaja Lake is a lake in Suomussalmi County, Finland with a maximum depth of 59 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2020-10-14. Methodology: how these readings are compared.

What Lounaja Lake is good for

From access and monitoring records, not editorial picks.

  • Deep water59.1 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 Lounaja Lake 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 Lounaja Lake

These are the measurements Syke publishes for Lounaja Lake. More on the source.

Murky, only visible to about 6.1 ft. Phosphorus 6.4 µg/L. Chlorophyll-a 3.2 µg/L. TSI 41.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)1.85mMeasured, not scored

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

Total phosphorus6.4µg/LMeasured, not scored

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

Chlorophyll-a (algae)3.2µg/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.41Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Lounaja Lake

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

Lake Details

Max depth

18 m

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Fishing Lounaja Lake

Frequently asked questions about Lounaja Lake

Where is Lounaja Lake?

Lounaja Lake is a lake in Suomussalmi, Finland. This page reports official water-quality measurements, shown as reported.

What is the water quality of Lounaja Lake?

Lounaja Lake in Suomussalmi, Finland has official water-quality measurements, shown as reported. Water clarity: 1.9 m visibility. Phosphorus: 6.4 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Maximum depth: 59.1 ft.

Measurements on this page ↑

Is Lounaja Lake safe to swim in?

Lounaja 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.

Swimming on this page ↑

How deep is Lounaja Lake?

Lounaja Lake has a maximum depth of 59.1 feet.

Where this data comes from

10 measurements from 1 monitoring station, 2020. 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-vesla10 samples · 2020

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (1)
  • 33229

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