Veisjärv
Veisjärv in Viljandi, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.8 m visibility. Phosphorus: 44 µg/L. Chlorophyll-a (algae): 24 µg/L. Maximum depth: 14.8 ft. Surface area: 1187.6 acres.
- Clarity
- 0.8 m
- Max depth
- 4.5 m
- Area
- 481 ha
Why Veisjärv has no A–F grade
Veisjärv in Estonia is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the Estonian Environment Agency (Keskkonnaagentuur).
Veisjärv is a 1,188-acre lake in Viljandi County, Estonia with a maximum depth of 15 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-09-09. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Veisjärv
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 2.5 ft of visibility. Phosphorus level: 44 µg/L. Chlorophyll-a: 24 µg/L. Trophic State Index: 62.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.75 m | Not graded |
| Phosphorus | 44 µg/L | Not graded |
| Chlorophyll-a (Algae) | 24 µg/L | Not graded |
| Trophic State Index (TSI) | 62 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 4.5 m |
| Surface Area | 481 ha |
Where to stay near Veisjärv
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Fishing Veisjärv
Frequently asked questions about Veisjärv
What is the water quality of Veisjärv?
- Veisjärv in Viljandi, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.8 m visibility. Phosphorus: 44 µg/L. Chlorophyll-a (algae): 24 µg/L. Maximum depth: 14.8 ft. Surface area: 1187.6 acres.
Is Veisjärv safe to swim in?
- Veisjärv 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 Veisjärv?
- Veisjärv has a maximum depth of 14.8 feet. The lake covers 1187.6 acres.
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Where this data comes from
16 measurements from 1 monitoring station, 2021. 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-ee16 samples · 2021
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (1)
SJA9257004
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2021-09-09
Monitoring stations: 1