Klooga Järv
Harju, Estonia133 haView mapDirections
KAUR publishes the water-quality measurements for Klooga Järv. Here is what has been measured.
- 11 ft max depth
- Limited data
Klooga Järv in Harju, Estonia has official water-quality measurements, shown as reported. Water clarity: 1.5 m visibility. Phosphorus: 31 µg/L. Chlorophyll-a (algae): 4.5 µg/L. Maximum depth: 10.8 ft. Surface area: 329.1 acres.
How Klooga Järv is classified
Klooga 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).
Klooga Järv is a 329-acre lake in Harju County, Estonia with a maximum depth of 11 feet.
Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2024-09-18. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Klooga 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.
Water quality measurements for Klooga Järv
These are the measurements KAUR publishes for Klooga Järv. More on the source.
Murky, only visible to about 4.9 ft. Phosphorus 31 µg/L. Chlorophyll-a 4.5 µg/L. TSI 51.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.5m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 31µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 4.5µg/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. | 51 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Klooga Järv
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
3.3 m
Surface area
133 ha
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Frequently asked questions about Klooga Järv
Where is Klooga Järv?
- Klooga Järv is a lake in Harju, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Klooga Järv?
- Klooga Järv in Harju, Estonia has official water-quality measurements, shown as reported. Water clarity: 1.5 m visibility. Phosphorus: 31 µg/L. Chlorophyll-a (algae): 4.5 µg/L. Maximum depth: 10.8 ft. Surface area: 329.1 acres.
Is Klooga Järv safe to swim in?
- Klooga 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 Klooga Järv?
- Klooga Järv has a maximum depth of 10.8 feet. The lake covers 329.1 acres.
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Where this data comes from
28 measurements from 2 monitoring stations, 2021–2024. 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-ee28 samples · 2021–2024
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (2)
SJA4166000SJA4166003
Authority classifications are shown as the authority published them. See where the data comes from and data sources.