Surtningen Lake
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Miljødirektoratet publishes the water-quality measurements for Surtningen Lake. Here is what has been measured.
- Limited data
Surtningen Lake in Norway has official water-quality measurements, shown as reported. Water clarity: 6.7 m visibility. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 1.7 µg/L.
How Surtningen Lake is classified
Surtningen Lake in Norway 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 Norwegian Environment Agency, via UNEP GEMS/Water (OPEN GFQA).
Surtningen Lake is a lake in Unknown County, Norway.
Source: the Norwegian Environment Agency, via UNEP GEMS/Water (OPEN GFQA) — not the EPA Water Quality Portal, last sampled 2021-09-28. Methodology: how these readings are compared.
What Surtningen Lake is good for
From access and monitoring records, not editorial picks.
- Clear water22 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Surtningen Lake is safe to swim in today is a call for the Norwegian Environment Agency, via UNEP GEMS/Water (OPEN GFQA) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Surtningen Lake
These are the measurements Miljødirektoratet publishes for Surtningen Lake. More on the source.
Crystal clear, you can see 22 ft down. Phosphorus 8 µg/L. Chlorophyll-a 1.7 µg/L. TSI 34.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.7m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 8µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 1.7µg/L | Measured, 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. | 34 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
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Answers come straight from the public measurements and survey records on this page.
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Frequently asked questions about Surtningen Lake
Where is Surtningen Lake?
- Surtningen Lake is a lake in Norway. This page reports official water-quality measurements, shown as reported.
What is the water quality of Surtningen Lake?
- Surtningen Lake in Norway has official water-quality measurements, shown as reported. Water clarity: 6.7 m visibility. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 1.7 µg/L.
Is Surtningen Lake safe to swim in?
- Surtningen 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.
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Where this data comes from
40 measurements from 1 monitoring station, 2017–2021. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- European Environment Agency
europeanenvironmentagenc40 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (1)
NOR00147
Authority classifications are shown as the authority published them. See where the data comes from and data sources.