Where is Szwałk Wielki?

Szwałk Wielki is a lake in LW30063, Poland. This page reports official water-quality measurements, shown as reported.

Is Szwałk Wielki safe to swim in?

Szwałk Wielki 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.

Szwałk Wielki

LW30063, PolandView map Directions

GIOŚ publishes the water-quality measurements for Szwałk Wielki. Here is what has been measured.

Clarity

0.8 m

Murkier than most

Secchi · sampled 2026

Phosphorus

44 µg/L

Typical for Poland

Measured by GIOŚ

Limited data

See the measurements Directions Where to stay

Szwałk Wielki in LW30063, Poland has official water-quality measurements, shown as reported. Water clarity: 0.8 m visibility. Phosphorus: 44 µg/L.

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How Szwałk Wielki is classified

Szwałk Wielki 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 and phosphorus, but not 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).

Szwałk Wielki is a lake in LW30063 County, Poland.

Source: the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska) — not the EPA Water Quality Portal, last sampled 2026-06-25. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

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

Whether Szwałk Wielki 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.

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Water quality measurements for Szwałk Wielki

These are the measurements GIOŚ publishes for Szwałk Wielki. More on the source.

Very murky, less than 2.5 ft of visibility. Phosphorus 44 µg/L. TSI 61.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.75m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	44µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)		No reading 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.	61	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Szwałk Wielki

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

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Stays near Szwałk Wielki

Compare lakeside cabins, hotels, and vacation rentals near Szwałk Wielki in LW30063, 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.

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Fishing Szwałk Wielki

→ Szwałk Wielki fishing regulations (limits, seasons, special rules)

Frequently asked questions about Szwałk Wielki

Where is Szwałk Wielki?: Szwałk Wielki is a lake in LW30063, Poland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Szwałk Wielki?: Szwałk Wielki in LW30063, Poland has official water-quality measurements, shown as reported. Water clarity: 0.8 m visibility. Phosphorus: 44 µg/L.
Is Szwałk Wielki safe to swim in?: Szwałk Wielki 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

4 measurements from 1 monitoring station, 2026. Retrieved from GIOŚ lake monitoring (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Główny Inspektorat Ochrony Środowiskagios-pjwp4 samples · —

Analytical methods

GIOŚ PJWP lake monitoring

Monitoring station identifiers (1)

PL01S0302_0081

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