Is Szelment Wielki safe to swim in?

Szelment 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.

Szelment Wielki

Not yet rated

2.7 m clear · Mesotrophic

Limited DataMesotrophic

Szelment Wielki in LW30606, Poland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.7 m visibility.

Clarity: 2.7 m

Where to stay →Safe to swim?

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Why Szelment Wielki has no A–F grade

Szelment Wielki in Poland 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, but not 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: the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska).

Szelment Wielki is a lake in LW30606 County, Poland.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2026-06-16. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Szelment Wielki

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Moderate clarity, visible to about 8.7 ft. Trophic State Index: 46.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.65 m	Not graded
Phosphorus	No recent samples
Chlorophyll-a (Algae)	No recent samples
Trophic State Index (TSI)	46	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Szelment Wielki

Compare lakeside cabins, hotels, and vacation rentals near Szelment Wielki in LW30606, 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 Szelment Wielki

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Fishing Szelment Wielki

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

Frequently asked questions about Szelment Wielki

What is the water quality of Szelment Wielki?: Szelment Wielki in LW30606, Poland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.7 m visibility.
Is Szelment Wielki safe to swim in?: Szelment 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.

Explore Szelment Wielki across LakeGrade

Lake Fishing Forecast

Species activity outlook by water temperature and season

More lakes in Poland

Lakes in Poland

Official water quality for lakes in Poland

Lake water quality by country

EU bathing ratings and named-lake measurements

Where this data comes from

2 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-pjwp2 samples · —

Analytical methods

GIOŚ PJWP lake monitoring

Monitoring station identifiers (1)

PL07S0802_0036

Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.

Data Sources

Water quality data from the EPA Water Quality Portal

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion

Most recent sample: 2026-06-16

Monitoring stations: 1

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