Võrtsjärv
Tartu, Estonia270 km²View mapDirections
KAUR publishes the water-quality measurements for Võrtsjärv. Here is what has been measured.
- 20 ft max depth
- Limited data
Võrtsjärv in Tartu, Estonia has official water-quality measurements, shown as reported. Water clarity: 0.7 m visibility. Phosphorus: 43 µg/L. Chlorophyll-a (algae): 30.4 µg/L. Maximum depth: 19.7 ft. Surface area: 66610.1 acres.
How Võrtsjärv is classified
Võrtsjärv 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).
Võrtsjärv is a 66,610-acre lake in Tartu County, Estonia with a maximum depth of 20 feet.
Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2025-12-11. Methodology: how these readings are compared.
What Võrtsjärv is good for
From access and monitoring records, not editorial picks.
- Big water66,610 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Võrtsjärv 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 Võrtsjärv
These are the measurements KAUR publishes for Võrtsjärv. More on the source.
Very murky, less than 2.2 ft of visibility. Phosphorus 43 µg/L. Chlorophyll-a 30.4 µg/L. TSI 63.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.68m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 43µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 30.4µg/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. | 63 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Võrtsjärv
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
6 m
Surface area
270 km²
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Frequently asked questions about Võrtsjärv
Where is Võrtsjärv?
- Võrtsjärv is a lake in Tartu, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Võrtsjärv?
- Võrtsjärv in Tartu, Estonia has official water-quality measurements, shown as reported. Water clarity: 0.7 m visibility. Phosphorus: 43 µg/L. Chlorophyll-a (algae): 30.4 µg/L. Maximum depth: 19.7 ft. Surface area: 66610.1 acres.
Is Võrtsjärv safe to swim in?
- Võrtsjärv 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 Võrtsjärv?
- Võrtsjärv has a maximum depth of 19.7 feet. The lake covers 66610.1 acres.
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Where this data comes from
484 measurements from 10 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-ee484 samples · 2016–2025
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (10)
SJB1548000SJB1547000SJB1557000SJB1563000SJB1550000SJB1560000SJB1564000SJB1561000SJB1558000SJB1555000
Authority classifications are shown as the authority published them. See where the data comes from and data sources.