Where is Kotojärvi Eli Lahnusta?

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

Is Kotojärvi Eli Lahnusta safe to swim in?

Kotojärvi Eli Lahnusta 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 Kotojärvi Eli Lahnusta?

Kotojärvi Eli Lahnusta has a maximum depth of 13.5 feet.

Kotojärvi Eli Lahnusta

Vihti, FinlandView map Directions

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

Clarity

0.9 m

Murkier than most

Secchi · sampled 2019

Phosphorus

72.5 µg/L

More phosphorus than most

Measured by Syke

Chlorophyll-a

83 µg/L

More algae than most

Measured by Syke

Max depth

4.1 m

Bathymetric survey

14 ft max depth
Limited data

See the measurements Directions Where to stay

Kotojärvi Eli Lahnusta in Vihti, Finland has official water-quality measurements, shown as reported. Water clarity: 0.9 m visibility. Phosphorus: 72.5 µg/L. Chlorophyll-a (algae): 83 µg/L. Maximum depth: 13.5 ft.

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How Kotojärvi Eli Lahnusta is classified

Kotojärvi Eli Lahnusta 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 Eli Lahnusta is a lake in Vihti County, Finland with a maximum depth of 14 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2019-07-31. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

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

Whether Kotojärvi Eli Lahnusta 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 Eli Lahnusta

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

Very murky, less than 2.8 ft of visibility. Phosphorus 72.5 µg/L. Chlorophyll-a 83 µg/L. TSI 67.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.85m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	72.5µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	83µg/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.	67	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Kotojärvi Eli Lahnusta

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

Lake Details

Max depth

4.1 m

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Fishing Kotojärvi Eli Lahnusta

→ Kotojärvi Eli Lahnusta fishing regulations (limits, seasons, special rules)

Frequently asked questions about Kotojärvi Eli Lahnusta

Where is Kotojärvi Eli Lahnusta?: Kotojärvi Eli Lahnusta is a lake in Vihti, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Kotojärvi Eli Lahnusta?: Kotojärvi Eli Lahnusta in Vihti, Finland has official water-quality measurements, shown as reported. Water clarity: 0.9 m visibility. Phosphorus: 72.5 µg/L. Chlorophyll-a (algae): 83 µg/L. Maximum depth: 13.5 ft.
Is Kotojärvi Eli Lahnusta safe to swim in?: Kotojärvi Eli Lahnusta 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 Kotojärvi Eli Lahnusta?: Kotojärvi Eli Lahnusta has a maximum depth of 13.5 feet.

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Where this data comes from

5 measurements from 1 monitoring station, 2019. 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-vesla5 samples · 2019

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

1500

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