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LakeQuality

Kotojärvi

Iitti, FinlandView mapDirections

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

Clarity
2.2 m
Typical for Finland
Secchi · sampled 2022
Phosphorus
15 µg/L
Typical for Finland
Measured by Syke
Chlorophyll-a
16.5 µg/L
More algae than most
Measured by Syke
Max depth
9.5 m
Bathymetric survey
  • 31 ft max depth
  • Limited data

Kotojärvi in Iitti, Finland has official water-quality measurements, shown as reported. Water clarity: 2.2 m visibility. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 16.5 µg/L. Maximum depth: 31.2 ft.

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How Kotojärvi is classified

Kotojärvi 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.

Kotojärvi is a lake in Iitti County, Finland with a maximum depth of 31 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2022-08-25. Methodology: how these readings are compared.

What Kotojärvi is good for

From access and monitoring records, not editorial picks.

  • Deep water31.2 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 Kotojärvi 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 Kotojärvi

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

Moderate clarity, visible to about 7.1 ft. Phosphorus 15 µg/L. Chlorophyll-a 16.5 µg/L. TSI 50.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.15mMeasured, not scored

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

Total phosphorus15µg/LMeasured, not scored

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

Chlorophyll-a (algae)16.5µg/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.50Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Kotojärvi

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

Lake Details

Max depth

9.5 m

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Stays near Kotojärvi

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Fishing Kotojärvi

Frequently asked questions about Kotojärvi

Where is Kotojärvi?

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

What is the water quality of Kotojärvi?

Kotojärvi in Iitti, Finland has official water-quality measurements, shown as reported. Water clarity: 2.2 m visibility. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 16.5 µg/L. Maximum depth: 31.2 ft.

Measurements on this page ↑

Is Kotojärvi safe to swim in?

Kotojärvi 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 Kotojärvi?

Kotojärvi has a maximum depth of 31.2 feet.

Where this data comes from

16 measurements from 1 monitoring station, 2016–2022. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Finnish Environment Institute (Syke) and ELY Centressyke-vesla16 samples · 2016–2022

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (1)
  • 11668

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