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LakeQuality

Pikkujärvi Lillsjön

Lohja, FinlandView mapDirections

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

Clarity
0.8 m
Murkier than most
Secchi · sampled 2025
Phosphorus
43 µg/L
More phosphorus than most
Measured by Syke
Chlorophyll-a
125 µg/L
More algae than most
Measured by Syke
Max depth
2.4 m
Bathymetric survey
  • 8 ft max depth
  • Limited data

Pikkujärvi Lillsjön in Lohja, Finland has official water-quality measurements, shown as reported. Water clarity: 0.8 m visibility. Phosphorus: 43 µg/L. Chlorophyll-a (algae): 125 µg/L. Maximum depth: 7.9 ft.

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How Pikkujärvi Lillsjön is classified

Pikkujärvi Lillsjön 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.

Pikkujärvi Lillsjön is a lake in Lohja County, Finland with a maximum depth of 8 feet.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2025-02-17. 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 Pikkujärvi Lillsjön 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 Pikkujärvi Lillsjön

These are the measurements Syke publishes for Pikkujärvi Lillsjön. More on the source.

Very murky, less than 2.6 ft of visibility. Phosphorus 43 µg/L. Chlorophyll-a 125 µg/L. TSI 67.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)0.8mMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus43µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)125µg/LMeasured, 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.67Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Pikkujärvi Lillsjön

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

Lake Details

Max depth

2.4 m

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Frequently asked questions about Pikkujärvi Lillsjön

Where is Pikkujärvi Lillsjön?

Pikkujärvi Lillsjön is a lake in Lohja, Finland. This page reports official water-quality measurements, shown as reported.

What is the water quality of Pikkujärvi Lillsjön?

Pikkujärvi Lillsjön in Lohja, Finland has official water-quality measurements, shown as reported. Water clarity: 0.8 m visibility. Phosphorus: 43 µg/L. Chlorophyll-a (algae): 125 µg/L. Maximum depth: 7.9 ft.

Measurements on this page ↑

Is Pikkujärvi Lillsjön safe to swim in?

Pikkujärvi Lillsjön 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.

Swimming on this page ↑

How deep is Pikkujärvi Lillsjön?

Pikkujärvi Lillsjön has a maximum depth of 7.9 feet.

Where this data comes from

52 measurements from 2 monitoring stations, 2016–2025. 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-vesla52 samples · 2016–2025

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (2)
  • 49377
  • 89673

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