Where is Hattulainen Lake?

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

Is Hattulainen Lake safe to swim in?

Hattulainen 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 Hattulainen Lake?

Hattulainen Lake has a maximum depth of 23 feet.

Hattulainen Lake

Sulkava, FinlandView map Directions

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

Clarity

2.5 m

Clearer than most

Secchi · sampled 2017

Phosphorus

12 µg/L

Typical for Finland

Measured by Syke

Chlorophyll-a

9.1 µg/L

Typical for Finland

Measured by Syke

Max depth

7 m

Bathymetric survey

23 ft max depth
Limited data

See the measurements Directions Where to stay

Hattulainen Lake in Sulkava, Finland has official water-quality measurements, shown as reported. Water clarity: 2.5 m visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 9.1 µg/L. Maximum depth: 23 ft.

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How Hattulainen Lake is classified

Hattulainen 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.

Hattulainen Lake is a lake in Sulkava County, Finland with a maximum depth of 23 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2017-10-24. 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 Hattulainen 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 Hattulainen Lake

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

Moderate clarity, visible to about 8 ft. Phosphorus 12 µg/L. Chlorophyll-a 9.1 µg/L. TSI 46.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.45m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	12µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	9.1µg/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.	46	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Hattulainen Lake

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

Lake Details

Max depth

7 m

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Fishing Hattulainen Lake

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

Frequently asked questions about Hattulainen Lake

Where is Hattulainen Lake?: Hattulainen Lake is a lake in Sulkava, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Hattulainen Lake?: Hattulainen Lake in Sulkava, Finland has official water-quality measurements, shown as reported. Water clarity: 2.5 m visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 9.1 µg/L. Maximum depth: 23 ft.
Is Hattulainen Lake safe to swim in?: Hattulainen 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 Hattulainen Lake?: Hattulainen Lake has a maximum depth of 23 feet.

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Where this data comes from

10 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-vesla10 samples · 2017

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

13686

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