Where is Groroedvannet?

Groroedvannet is a lake in Norway. This page reports official water-quality measurements, shown as reported.

Is Groroedvannet safe to swim in?

Groroedvannet 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.

Groroedvannet

NorwayView map Directions

Miljødirektoratet publishes the water-quality measurements for Groroedvannet. Here is what has been measured.

Clarity

4.1 m

Typical for Norway

Secchi · sampled 2023

Phosphorus

7 µg/L

Typical for Norway

Measured by Miljødirektoratet

Chlorophyll-a

7.6 µg/L

More algae than most

Measured by Miljødirektoratet

Limited data

See the measurements Directions Where to stay

Groroedvannet in Norway has official water-quality measurements, shown as reported. Water clarity: 4.1 m visibility. Phosphorus: 7 µg/L. Chlorophyll-a (algae): 7.6 µg/L.

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How Groroedvannet is classified

Groroedvannet 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).

Groroedvannet 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 2023-09-20. Methodology: how these readings are compared.

What Groroedvannet is good for

From access and monitoring records, not editorial picks.

Clear water13.5 ft of visibility

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Groroedvannet 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.

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Water quality measurements for Groroedvannet

These are the measurements Miljødirektoratet publishes for Groroedvannet. More on the source.

Good clarity, visible to about 13.5 ft. Phosphorus 7 µg/L. Chlorophyll-a 7.6 µg/L. TSI 41.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	4.1m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	7µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	7.6µg/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.	41	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Groroedvannet

Answers come straight from the public measurements and survey records on this page.

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Fishing Groroedvannet

→ Groroedvannet fishing regulations (limits, seasons, special rules)

Frequently asked questions about Groroedvannet

Where is Groroedvannet?: Groroedvannet is a lake in Norway. This page reports official water-quality measurements, shown as reported.
What is the water quality of Groroedvannet?: Groroedvannet in Norway has official water-quality measurements, shown as reported. Water clarity: 4.1 m visibility. Phosphorus: 7 µg/L. Chlorophyll-a (algae): 7.6 µg/L.
Is Groroedvannet safe to swim in?: Groroedvannet 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

35 measurements from 1 monitoring station, 2016–2023. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

European Environment Agencyeuropeanenvironmentagenc35 samples · —

Analytical methods

GEMStat OPEN / CC BY 4.0

Monitoring station identifiers (1)

NOR00160

Authority classifications are shown as the authority published them. See where the data comes from and data sources.