Where is Korkatti Lake?

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

Is Korkatti Lake safe to swim in?

Korkatti 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.

How deep is Korkatti Lake?

Korkatti Lake has a maximum depth of 3.3 feet.

Korkatti Lake

Haapavesi, FinlandView map Directions

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

Phosphorus

246 µg/L

More phosphorus than most

Measured by Syke

Chlorophyll-a

13 µg/L

Typical for Finland

Measured by Syke

Max depth

1 m

Bathymetric survey

3 ft max depth
Limited data

See the measurements Directions Where to stay

Korkatti Lake in Haapavesi, Finland has official water-quality measurements, shown as reported. Phosphorus: 246 µg/L. Chlorophyll-a (algae): 13 µg/L. Maximum depth: 3.3 ft.

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How Korkatti Lake is classified

Korkatti 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 phosphorus and algae (chlorophyll-a), but not water clarity.

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.

Korkatti Lake is a lake in Haapavesi County, Finland with a maximum depth of 3 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2017-08-15. 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 Korkatti 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 Korkatti Lake

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

No clarity data. Phosphorus 246 µg/L. Chlorophyll-a 13 µg/L. TSI 70.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)		No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	246µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	13µg/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.	70	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Korkatti Lake

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

Lake Details

Max depth

1 m

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Fishing Korkatti Lake

→ Korkatti Lake fishing regulations (limits, seasons, special rules)

Frequently asked questions about Korkatti Lake

Where is Korkatti Lake?: Korkatti Lake is a lake in Haapavesi, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Korkatti Lake?: Korkatti Lake in Haapavesi, Finland has official water-quality measurements, shown as reported. Phosphorus: 246 µg/L. Chlorophyll-a (algae): 13 µg/L. Maximum depth: 3.3 ft.
Is Korkatti Lake safe to swim in?: Korkatti 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.
How deep is Korkatti Lake?: Korkatti Lake has a maximum depth of 3.3 feet.

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Where this data comes from

4 measurements from 1 monitoring station, 2017. 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-vesla4 samples · 2017

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

27792

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