Where is Laihua Lake?

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

Is Laihua Lake safe to swim in?

Laihua 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 Laihua Lake?

Laihua Lake has a maximum depth of 14.8 feet.

Laihua Lake

Loppi, FinlandView map Directions

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

Clarity

2.7 m

Clearer than most

Secchi · sampled 2019

Phosphorus

20 µg/L

Typical for Finland

Measured by Syke

Chlorophyll-a

7.7 µg/L

Typical for Finland

Measured by Syke

Max depth

4.5 m

Bathymetric survey

15 ft max depth
Limited data

See the measurements Directions Where to stay

Laihua Lake in Loppi, Finland has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 7.7 µg/L. Maximum depth: 14.8 ft.

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How Laihua Lake is classified

Laihua 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.

Laihua Lake is a lake in Loppi County, Finland with a maximum depth of 15 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2019-09-11. 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 Laihua 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 Laihua Lake

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

Moderate clarity, visible to about 8.9 ft. Phosphorus 20 µg/L. Chlorophyll-a 7.7 µg/L. TSI 48.

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	20µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	7.7µg/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.	48	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Laihua Lake

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

Lake Details

Max depth

4.5 m

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Fishing Laihua Lake

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

Frequently asked questions about Laihua Lake

Where is Laihua Lake?: Laihua Lake is a lake in Loppi, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Laihua Lake?: Laihua Lake in Loppi, Finland has official water-quality measurements, shown as reported. Water clarity: 2.7 m visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 7.7 µg/L. Maximum depth: 14.8 ft.
Is Laihua Lake safe to swim in?: Laihua 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 Laihua Lake?: Laihua Lake has a maximum depth of 14.8 feet.

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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)

3759

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