Where is Rehtijärvi?

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

Is Rehtijärvi safe to swim in?

Rehtijärvi 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 Rehtijärvi?

Rehtijärvi has a maximum depth of 83 feet.

Rehtijärvi

Jokioinen, FinlandView map Directions

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

Clarity

0.4 m

Murkier than most

Secchi · sampled 2026

Phosphorus

85 µg/L

More phosphorus than most

Measured by Syke

Chlorophyll-a

13 µg/L

Typical for Finland

Measured by Syke

Max depth

25.3 m

Bathymetric survey

83 ft max depth
Limited data

See the measurements Directions Where to stay

Rehtijärvi in Jokioinen, Finland has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 13 µg/L. Maximum depth: 83 ft.

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How Rehtijärvi is classified

Rehtijärvi 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.

Rehtijärvi is a lake in Jokioinen County, Finland with a maximum depth of 83 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2026-07-15. Methodology: how these readings are compared.

What Rehtijärvi is good for

From access and monitoring records, not editorial picks.

Deep water83 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 Rehtijärvi 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 Rehtijärvi

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

Very murky, less than 1.3 ft of visibility. Phosphorus 85 µg/L. Chlorophyll-a 13 µg/L. TSI 66.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.4m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	85µg/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.	66	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Rehtijärvi

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

Lake Details

Max depth

25.3 m

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Fishing Rehtijärvi

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

Frequently asked questions about Rehtijärvi

Where is Rehtijärvi?: Rehtijärvi is a lake in Jokioinen, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Rehtijärvi?: Rehtijärvi in Jokioinen, Finland has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 13 µg/L. Maximum depth: 83 ft.
Is Rehtijärvi safe to swim in?: Rehtijärvi 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 Rehtijärvi?: Rehtijärvi has a maximum depth of 83 feet.

Explore Rehtijärvi across LakeQuality

Lake Fishing Forecast

Species activity outlook by water temperature and season

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Lakes in Finland

Official water quality for lakes in Finland

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EU bathing ratings and named-lake measurements

Where this data comes from

25 measurements from 1 monitoring station, 2019–2026. 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-vesla25 samples · 2019–2026

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

2465

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