Where is Purnujärvi?

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

Is Purnujärvi safe to swim in?

Purnujärvi 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 Purnujärvi?

The available depth estimate for Purnujärvi is shallower than its measured water clarity, which cannot be right, so no depth is shown.

Purnujärvi

Hartola, FinlandView map Directions

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

Clarity

2.7 m

Clearer than most

Secchi · sampled 2019

Phosphorus

8 µg/L

Less phosphorus than most

Measured by Syke

Chlorophyll-a

5.4 µg/L

Typical for Finland

Measured by Syke

Limited data

See the measurements Directions Where to stay

Purnujärvi in Hartola, Finland has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 5.4 µg/L.

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How Purnujärvi is classified

Purnujärvi 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.

Purnujärvi is a lake in Hartola County, Finland.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2019-08-13. 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 Purnujärvi 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 Purnujärvi

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

Moderate clarity, visible to about 8.9 ft. Phosphorus 8 µg/L. Chlorophyll-a 5.4 µg/L. TSI 42.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.7m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	8µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	5.4µg/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.	42	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Purnujärvi

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

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Stays near Purnujärvi

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Fishing Purnujärvi

→ Purnujärvi fishing regulations (limits, seasons, special rules)

Frequently asked questions about Purnujärvi

Where is Purnujärvi?: Purnujärvi is a lake in Hartola, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Purnujärvi?: Purnujärvi in Hartola, Finland has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 5.4 µg/L.
Is Purnujärvi safe to swim in?: Purnujärvi 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 Purnujärvi?: The available depth estimate for Purnujärvi is shallower than its measured water clarity, which cannot be right, so no depth is shown.

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Where this data comes from

3 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-vesla3 samples · 2019

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

43824

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