Ostrowite is a lake in LW20299, Poland. This page reports official water-quality measurements, shown as reported.

Is Ostrowite safe to swim in?

Ostrowite 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.

Ostrowite

LW20299, PolandView map Directions

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

Clarity

6.3 m

Clearer than most

Secchi · sampled 2024

Phosphorus

18 µg/L

Less phosphorus than most

Measured by GIOŚ

Chlorophyll-a

3.1 µg/L

Less algae than most

Measured by GIOŚ

Limited data

See the measurements Directions Where to stay

Ostrowite in LW20299, Poland has official water-quality measurements, shown as reported. Water clarity: 6.3 m visibility. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 3.1 µg/L.

Loading map…

How Ostrowite is classified

Ostrowite 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).

Ostrowite is a lake in LW20299 County, Poland.

Source: the Chief Inspectorate of Environmental Protection (Główny Inspektorat Ochrony Środowiska) — not the EPA Water Quality Portal, last sampled 2024-10-08. Methodology: how these readings are compared.

What Ostrowite is good for

From access and monitoring records, not editorial picks.

Clear water20.7 ft of visibility

Swimming conditions

No reading

Limited data

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

Whether Ostrowite 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 Ostrowite →

Water quality measurements for Ostrowite

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

Crystal clear, you can see 20.7 ft down. Phosphorus 18 µg/L. Chlorophyll-a 3.1 µg/L. TSI 40.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	6.3m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	18µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	3.1µg/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.	40	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Ostrowite

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

Stays via Stay22

Stays near Ostrowite

Compare lakeside cabins, hotels, and vacation rentals near Ostrowite in LW20299, 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 Ostrowite

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 Ostrowite’s readings

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

Or email

Fishing Ostrowite

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

Frequently asked questions about Ostrowite

Where is Ostrowite?: Ostrowite is a lake in LW20299, Poland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Ostrowite?: Ostrowite in LW20299, Poland has official water-quality measurements, shown as reported. Water clarity: 6.3 m visibility. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 3.1 µg/L.
Is Ostrowite safe to swim in?: Ostrowite 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 Ostrowite 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, 2024. 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)

PL01S0202_0072

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