Where is Kooru Järv?

Kooru Järv is a lake in Saare, Estonia. This page reports official water-quality measurements, shown as reported.

Is Kooru Järv safe to swim in?

Kooru Järv 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.

How deep is Kooru Järv?

Kooru Järv has a maximum depth of 4.6 feet. The lake covers 215.5 acres.

Kooru Järv

Saare, Estonia87 haView map Directions

KAUR publishes the water-quality measurements for Kooru Järv. Here is what has been measured.

Clarity

0.8 m

Murkier than most

Secchi · sampled 2025

Phosphorus

15 µg/L

Less phosphorus than most

Measured by KAUR

Chlorophyll-a

1.5 µg/L

Less algae than most

Measured by KAUR

Max depth

1.4 m

Bathymetric survey

Area

87 ha

Surface area

5 ft max depth
Limited data

See the measurements Directions Where to stay

Kooru Järv in Saare, Estonia has official water-quality measurements, shown as reported. Water clarity: 0.8 m visibility. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 1.5 µg/L. Maximum depth: 4.6 ft. Surface area: 215.5 acres.

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How Kooru Järv is classified

Kooru Järv in Estonia 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 Estonian Environment Agency (Keskkonnaagentuur).

Kooru Järv is a 216-acre lake in Saare County, Estonia with a maximum depth of 5 feet.

Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2025-09-16. 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 Kooru Järv is safe to swim in today is a call for the Estonian Environment Agency (Keskkonnaagentuur) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Kooru Järv

These are the measurements KAUR publishes for Kooru Järv. More on the source.

Very murky, less than 2.6 ft of visibility. Phosphorus 15 µg/L. Chlorophyll-a 1.5 µg/L. TSI 47.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	0.8m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	15µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	1.5µg/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 Kooru Järv

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

Lake Details

Max depth

1.4 m

Surface area

87 ha

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Fishing Kooru Järv

→ Kooru Järv fishing regulations (limits, seasons, special rules)

Frequently asked questions about Kooru Järv

Where is Kooru Järv?: Kooru Järv is a lake in Saare, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Kooru Järv?: Kooru Järv in Saare, Estonia has official water-quality measurements, shown as reported. Water clarity: 0.8 m visibility. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 1.5 µg/L. Maximum depth: 4.6 ft. Surface area: 215.5 acres.
Is Kooru Järv safe to swim in?: Kooru Järv 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.
How deep is Kooru Järv?: Kooru Järv has a maximum depth of 4.6 feet. The lake covers 215.5 acres.

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Where this data comes from

128 measurements from 2 monitoring stations, 2016–2025. Retrieved from KESE / Estonian Environment Agency (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Estonian Environment Agency (Keskkonnaagentuur)kese-ee128 samples · 2016–2025

Analytical methods

KESE I-level monitoring

Monitoring station identifiers (2)

SJA0836000
SJA0836003

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