Mustjärv
Põlva, Estonia23 haView mapDirections
KAUR publishes the water-quality measurements for Mustjärv. Here is what has been measured.
- 30 ft max depth
- Limited data
Mustjärv in Põlva, Estonia has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 37 µg/L. Chlorophyll-a (algae): 7.7 µg/L. Maximum depth: 30.2 ft. Surface area: 56.8 acres.
How Mustjärv is classified
Mustjärv 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).
Mustjärv is a 57-acre lake in Põlva County, Estonia with a maximum depth of 30 feet.
Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2025-09-09. Methodology: how these readings are compared.
What Mustjärv is good for
From access and monitoring records, not editorial picks.
- Deep water30.2 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mustjärv 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 Mustjärv
These are the measurements KAUR publishes for Mustjärv. More on the source.
Very murky, less than 1.3 ft of visibility. Phosphorus 37 µg/L. Chlorophyll-a 7.7 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.4m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 37µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 7.7µg/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. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Mustjärv
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
9.2 m
Surface area
23 ha
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Frequently asked questions about Mustjärv
Where is Mustjärv?
- Mustjärv is a lake in Põlva, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Mustjärv?
- Mustjärv in Põlva, Estonia has official water-quality measurements, shown as reported. Water clarity: 0.4 m visibility. Phosphorus: 37 µg/L. Chlorophyll-a (algae): 7.7 µg/L. Maximum depth: 30.2 ft. Surface area: 56.8 acres.
Is Mustjärv safe to swim in?
- Mustjärv 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 Mustjärv?
- Mustjärv has a maximum depth of 30.2 feet. The lake covers 56.8 acres.
Explore Mustjärv across LakeQuality
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Where this data comes from
286 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-ee286 samples · 2016–2025
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (2)
SJA6244000SJA6244003
Authority classifications are shown as the authority published them. See where the data comes from and data sources.