Kopań is a lake in LW20950, Poland. This page reports official water-quality measurements, shown as reported.

Is Kopań safe to swim in?

Kopań 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.

Kopań

LW20950, PolandView map Directions

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

Clarity

0.4 m

Murkier than most

Secchi · sampled 2025

Phosphorus

77.5 µg/L

More phosphorus than most

Measured by GIOŚ

Chlorophyll-a

63.7 µg/L

More algae than most

Measured by GIOŚ

Limited data

See the measurements Directions Where to stay

Kopań in LW20950, Poland has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 77.5 µg/L. Chlorophyll-a (algae): 63.7 µg/L.

Loading map…

How Kopań is classified

Kopań 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).

Kopań is a lake in LW20950 County, Poland.

Source: the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska) — not the EPA Water Quality Portal, last sampled 2025-10-01. 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 Kopań 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 Kopań →

Water quality measurements for Kopań

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

Very murky, less than 1.1 ft of visibility. Phosphorus 77.5 µg/L. Chlorophyll-a 63.7 µg/L. TSI 71.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.35m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	77.5µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	63.7µg/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.	71	Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Kopań

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

Stays via Stay22

Stays near Kopań

Compare lakeside cabins, hotels, and vacation rentals near Kopań in LW20950, 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 Kopań

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 Kopań’s readings

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

Or email

Fishing Kopań

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

Frequently asked questions about Kopań

Where is Kopań?: Kopań is a lake in LW20950, Poland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Kopań?: Kopań in LW20950, Poland has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 77.5 µg/L. Chlorophyll-a (algae): 63.7 µg/L.
Is Kopań safe to swim in?: Kopań 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 Kopań 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_3325

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