Where is Alainen-Karkjärvi?

Alainen-Karkjärvi is a lake in Kuhmoinen, Finland. This page reports official water-quality measurements, shown as reported.

Is Alainen-Karkjärvi safe to swim in?

Alainen-Karkjärvi 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 Alainen-Karkjärvi?

Alainen-Karkjärvi has a maximum depth of 58.1 feet.

Alainen-Karkjärvi

Kuhmoinen, FinlandView map Directions

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

Clarity

2.5 m

Clearer than most

Secchi · sampled 2026

Phosphorus

11.5 µg/L

Typical for Finland

Measured by Syke

Chlorophyll-a

3.9 µg/L

Less algae than most

Measured by Syke

Max depth

17.7 m

Bathymetric survey

58 ft max depth
Limited data

See the measurements Directions Where to stay

Alainen-Karkjärvi in Kuhmoinen, Finland has official water-quality measurements, shown as reported. Water clarity: 2.5 m visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 3.9 µg/L. Maximum depth: 58.1 ft.

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How Alainen-Karkjärvi is classified

Alainen-Karkjärvi 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.

Alainen-Karkjärvi is a lake in Kuhmoinen County, Finland with a maximum depth of 58 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2026-06-30. Methodology: how these readings are compared.

What Alainen-Karkjärvi is good for

From access and monitoring records, not editorial picks.

Deep water58.1 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 Alainen-Karkjärvi 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 Alainen-Karkjärvi

These are the measurements Syke publishes for Alainen-Karkjärvi. More on the source.

Moderate clarity, visible to about 8.2 ft. Phosphorus 11.5 µg/L. Chlorophyll-a 3.9 µg/L. TSI 43.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.5m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	11.5µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	3.9µg/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.	43	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Alainen-Karkjärvi

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

Lake Details

Max depth

17.7 m

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Fishing Alainen-Karkjärvi

→ Alainen-Karkjärvi fishing regulations (limits, seasons, special rules)

Frequently asked questions about Alainen-Karkjärvi

Where is Alainen-Karkjärvi?: Alainen-Karkjärvi is a lake in Kuhmoinen, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Alainen-Karkjärvi?: Alainen-Karkjärvi in Kuhmoinen, Finland has official water-quality measurements, shown as reported. Water clarity: 2.5 m visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 3.9 µg/L. Maximum depth: 58.1 ft.
Is Alainen-Karkjärvi safe to swim in?: Alainen-Karkjärvi 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 Alainen-Karkjärvi?: Alainen-Karkjärvi has a maximum depth of 58.1 feet.

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Where this data comes from

15 measurements from 1 monitoring station, 2020–2026. 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-vesla15 samples · 2020–2026

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

24509

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