Marąg
LW30346, PolandView mapDirections
GIOŚ publishes the water-quality measurements for Marąg. Here is what has been measured.
- Limited data
Marąg in LW30346, Poland has official water-quality measurements, shown as reported. Water clarity: 0.9 m visibility. Phosphorus: 79.5 µg/L. Chlorophyll-a (algae): 31.1 µg/L.
How Marąg is classified
Marąg in Poland 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 Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska).
Marąg is a lake in LW30346 County, Poland.
Source: the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska) — not the EPA Water Quality Portal, last sampled 2024-10-15. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Marąg is safe to swim in today is a call for the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Marąg
These are the measurements GIOŚ publishes for Marąg. More on the source.
Very murky, less than 3 ft of visibility. Phosphorus 79.5 µg/L. Chlorophyll-a 31.1 µg/L. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.9m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 79.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 31.1µg/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. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Marąg
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Marąg
Compare lakeside cabins, hotels, and vacation rentals near Marąg in LW30346, Poland — 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 Marąg
Prices for Oct 2–4, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Marąg’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Marąg
Frequently asked questions about Marąg
Where is Marąg?
- Marąg is a lake in LW30346, Poland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Marąg?
- Marąg in LW30346, Poland has official water-quality measurements, shown as reported. Water clarity: 0.9 m visibility. Phosphorus: 79.5 µg/L. Chlorophyll-a (algae): 31.1 µg/L.
Is Marąg safe to swim in?
- Marąg 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 Marąg across LakeQuality
More lakes in Poland
Where this data comes from
12 measurements from 1 monitoring station, 2024. Retrieved from GIOŚ lake monitoring (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Główny Inspektorat Ochrony Środowiska
gios-pjwp12 samples · —
Analytical methods
- GIOŚ PJWP lake monitoring
Monitoring station identifiers (1)
PL01S0302_0125
Authority classifications are shown as the authority published them. See where the data comes from and data sources.