Markermeer
Markermeer in Flevoland, Netherlands has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.5 m visibility. Phosphorus: 21.5 µg/L. Chlorophyll-a (algae): 16 µg/L.
- Clarity
- 0.5 m
Why Markermeer has no A–F grade
Markermeer in Netherlands 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: Rijkswaterstaat.
Markermeer is a lake in Flevoland County, Netherlands.
Source: Rijkswaterstaat — not the EPA Water Quality Portal, last sampled 2025-12-17. Grade methodology: LakeGrade methodology.
Watch Markermeer water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Markermeer
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.6 ft of visibility. Phosphorus level: 21.5 µg/L. Chlorophyll-a: 16 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.5 m | Not graded |
| Phosphorus | 21.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 16 µg/L | Not graded |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Markermeer
Compare lakeside cabins, hotels, and vacation rentals near Markermeer in Flevoland, Netherlands — 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.
Top-rated places to stay near Markermeer
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Markermeer
Frequently asked questions about Markermeer
What is the water quality of Markermeer?
- Markermeer in Flevoland, Netherlands has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.5 m visibility. Phosphorus: 21.5 µg/L. Chlorophyll-a (algae): 16 µg/L.
Is Markermeer safe to swim in?
- Markermeer 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.
Explore Markermeer across LakeGrade
More lakes in Netherlands
Where this data comes from
387 measurements from 1 monitoring station, 2016–2025. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- Rijkswaterstaat
rws-nl387 samples · —
Analytical methods
- Rijkswaterstaat WaterWebservices
Monitoring station identifiers (1)
markermeer.midden
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.