Chlewo is a lake in LW20899, Poland. This page reports official water-quality measurements, shown as reported.

Is Chlewo safe to swim in?

Chlewo 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.

Chlewo

LW20899, PolandView map Directions

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

Clarity

3 m

Clearer than most

Secchi · sampled 2025

Phosphorus

15.5 µg/L

Less phosphorus than most

Measured by GIOŚ

Chlorophyll-a

9.2 µg/L

Typical for Poland

Measured by GIOŚ

Limited data

See the measurements Directions Where to stay

Chlewo in LW20899, Poland has official water-quality measurements, shown as reported. Water clarity: 3 m visibility. Phosphorus: 15.5 µg/L. Chlorophyll-a (algae): 9.2 µg/L.

Loading map…

How Chlewo is classified

Chlewo 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).

Chlewo is a lake in LW20899 County, Poland.

Source: the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska) — not the EPA Water Quality Portal, last sampled 2025-10-07. 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 Chlewo 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.

Get alerts for Chlewo →

Water quality measurements for Chlewo

These are the measurements GIOŚ publishes for Chlewo. More on the source.

Moderate clarity, visible to about 9.7 ft. Phosphorus 15.5 µg/L. Chlorophyll-a 9.2 µg/L. TSI 47.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.95m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	15.5µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	9.2µg/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.	47	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Chlewo

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

Stays via Stay22

Stays near Chlewo

Compare lakeside cabins, hotels, and vacation rentals near Chlewo in LW20899, 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 Chlewo

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 Chlewo’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Chlewo

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

Frequently asked questions about Chlewo

Where is Chlewo?: Chlewo is a lake in LW20899, Poland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Chlewo?: Chlewo in LW20899, Poland has official water-quality measurements, shown as reported. Water clarity: 3 m visibility. Phosphorus: 15.5 µg/L. Chlorophyll-a (algae): 9.2 µg/L.
Is Chlewo safe to swim in?: Chlewo 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 Chlewo across LakeQuality

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

12 measurements from 1 monitoring station, 2025. Retrieved from GIOŚ lake monitoring (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Główny Inspektorat Ochrony Środowiskagios-pjwp12 samples · —

Analytical methods

GIOŚ PJWP lake monitoring

Monitoring station identifiers (1)

PL02S0102_0059

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