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LakeQuality

Valkea-Kotinen Lake

NR
Not yet rated
1 m clear · Eutrophic
Limited DataEutrophic

Valkea-Kotinen Lake in Hämeenlinna, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1 m visibility. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 12 µg/L. Maximum depth: 20 ft.

Clarity
1 m
Max depth
6.1 m
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Why Valkea-Kotinen Lake has no A–F grade

Valkea-Kotinen Lake 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, phosphorus and 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.

Valkea-Kotinen Lake is a lake in Hämeenlinna County, Finland with a maximum depth of 20 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2026-07-21. 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 Valkea-Kotinen Lake

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

Very murky, less than 3.3 ft of visibility. Phosphorus level: 17 µg/L. Chlorophyll-a: 12 µg/L. Trophic State Index: 53.

MetricValueGrade
Water Clarity (Secchi Depth)1 mNot graded
Phosphorus17 µg/LNot graded
Chlorophyll-a (Algae)12 µg/LNot graded
Trophic State Index (TSI)53Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth6.1 m

Where to stay near Valkea-Kotinen Lake

Compare lakeside cabins, hotels, and vacation rentals near Valkea-Kotinen Lake in Hämeenlinna, 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 Valkea-Kotinen Lake

Frequently asked questions about Valkea-Kotinen Lake

What is the water quality of Valkea-Kotinen Lake?

Valkea-Kotinen Lake in Hämeenlinna, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1 m visibility. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 12 µg/L. Maximum depth: 20 ft.

Is Valkea-Kotinen Lake safe to swim in?

Valkea-Kotinen 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 Valkea-Kotinen Lake?

Valkea-Kotinen Lake has a maximum depth of 20 feet.

Where this data comes from

189 measurements from 1 monitoring station, 2016–2026. 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-vesla189 samples · 2016–2026

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (1)
  • 1898

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: 2026-07-21

Monitoring stations: 1

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