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LakeQuality

Vähäjärvi

NR
Not yet rated
1.2 m clear · Eutrophic
Limited DataEutrophic

Vähäjärvi in Lohja, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.2 m visibility. Phosphorus: 23 µg/L. Maximum depth: 16.4 ft.

Clarity
1.2 m
Max depth
5 m
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Why Vähäjärvi has no A–F grade

Vähäjärvi in Finland is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).

A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.

Monitoring: the Finnish Environment Institute (Syke) and the ELY Centres.

Vähäjärvi is a lake in Lohja County, Finland with a maximum depth of 16 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-09-03. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Vähäjärvi

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Murky, only visible to about 3.9 ft. Phosphorus level: 23 µg/L. Trophic State Index: 53.

MetricValueGrade
Water Clarity (Secchi Depth)1.2 mNot graded
Phosphorus23 µg/LNot graded
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)53Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth5 m

Where to stay near Vähäjärvi

Compare lakeside cabins, hotels, and vacation rentals near Vähäjärvi in Lohja, Finland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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Fishing Vähäjärvi

Frequently asked questions about Vähäjärvi

What is the water quality of Vähäjärvi?

Vähäjärvi in Lohja, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.2 m visibility. Phosphorus: 23 µg/L. Maximum depth: 16.4 ft.

Is Vähäjärvi safe to swim in?

Vähäjärvi 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 Vähäjärvi?

Vähäjärvi has a maximum depth of 16.4 feet.

Where this data comes from

22 measurements from 1 monitoring station, 2016–2024. 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-vesla22 samples · 2016–2024

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (1)
  • 1180

Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.

Data Sources

Water quality data from the EPA Water Quality Portal

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion

Most recent sample: 2024-09-03

Monitoring stations: 1

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