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LakeQuality

Kaarnijärvi

NR
Not yet rated
1.2 m clear · Mesotrophic
Limited DataMesotrophic

Kaarnijärvi in Laitila, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.2 m visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 4.7 µg/L. Maximum depth: 5.9 ft.

Clarity
1.2 m
Max depth
1.8 m
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Why Kaarnijärvi has no A–F grade

Kaarnijärvi 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.

Kaarnijärvi is a lake in Laitila County, Finland with a maximum depth of 6 feet.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-08-16. 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 Kaarnijärvi

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: 11.5 µg/L. Chlorophyll-a: 4.7 µg/L. Trophic State Index: 47.

MetricValueGrade
Water Clarity (Secchi Depth)1.2 mNot graded
Phosphorus11.5 µg/LNot graded
Chlorophyll-a (Algae)4.7 µg/LNot graded
Trophic State Index (TSI)47Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth1.8 m

Where to stay near Kaarnijärvi

Compare lakeside cabins, hotels, and vacation rentals near Kaarnijärvi in Laitila, 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 Kaarnijärvi

Frequently asked questions about Kaarnijärvi

What is the water quality of Kaarnijärvi?

Kaarnijärvi in Laitila, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.2 m visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 4.7 µg/L. Maximum depth: 5.9 ft.

Is Kaarnijärvi safe to swim in?

Kaarnijärvi 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 Kaarnijärvi?

Kaarnijärvi has a maximum depth of 5.9 feet.

Where this data comes from

6 measurements from 1 monitoring station, 2021. 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-vesla6 samples · 2021

Analytical methods

  • SYKE VESLA
Monitoring station identifiers (1)
  • 6326

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: 2021-08-16

Monitoring stations: 1

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