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LakeQuality

Tangersjo Lake

NR
Not yet rated
4.4 m clear · Oligotrophic
Limited DataOligotrophic

Tangersjo Lake in Unknown, Sweden has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 4.4 m visibility. Phosphorus: 8.1 µg/L. Chlorophyll-a (algae): 2.5 µg/L.

Clarity
4.4 m
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Why Tangersjo Lake has no A–F grade

Tangersjo Lake in Sweden 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 Swedish Agency for Marine and Water Management, via UNEP GEMS/Water.

Tangersjo Lake is a lake in Unknown County, Sweden.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-10-20. 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 Tangersjo Lake

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

Good clarity, visible to about 14.4 ft. Phosphorus level: 8.1 µg/L. Chlorophyll-a: 2.5 µg/L. Trophic State Index: 38.

MetricValueGrade
Water Clarity (Secchi Depth)4.38 mNot graded
Phosphorus8.1 µg/LNot graded
Chlorophyll-a (Algae)2.5 µg/LNot graded
Trophic State Index (TSI)38Oligotrophic

Low nutrients, clear water, excellent for swimming

Where to stay near Tangersjo Lake

Compare lakeside cabins, hotels, and vacation rentals near Tangersjo Lake in Unknown, Sweden — 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 Tangersjo Lake

Frequently asked questions about Tangersjo Lake

What is the water quality of Tangersjo Lake?

Tangersjo Lake in Unknown, Sweden has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 4.4 m visibility. Phosphorus: 8.1 µg/L. Chlorophyll-a (algae): 2.5 µg/L.

Is Tangersjo Lake safe to swim in?

Tangersjo 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.

Where this data comes from

64 measurements from 1 monitoring station, 2016–2021. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • European Environment Agencyeuropeanenvironmentagenc64 samples ·

Analytical methods

  • GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (1)
  • SWE00173

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: 2021-10-20

Monitoring stations: 1

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