Kariste Järv
Kariste Järv in Viljandi, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.4 m visibility. Phosphorus: 65 µg/L. Chlorophyll-a (algae): 30 µg/L. Maximum depth: 23 ft. Surface area: 152.2 acres.
- Clarity
- 1.4 m
- Max depth
- 7 m
- Area
- 62 ha
Why Kariste Järv has no A–F grade
Kariste Järv 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).
Kariste Järv is a 152-acre lake in Viljandi County, Estonia with a maximum depth of 23 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-09-12. 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 Kariste Järv
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 4.6 ft. Phosphorus level: 65 µg/L. Chlorophyll-a: 30 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.4 m | Not graded |
| Phosphorus | 65 µg/L | Not graded |
| Chlorophyll-a (Algae) | 30 µg/L | Not graded |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 7 m |
| Surface Area | 62 ha |
Where to stay near Kariste Järv
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Fishing Kariste Järv
Frequently asked questions about Kariste Järv
What is the water quality of Kariste Järv?
- Kariste Järv in Viljandi, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.4 m visibility. Phosphorus: 65 µg/L. Chlorophyll-a (algae): 30 µg/L. Maximum depth: 23 ft. Surface area: 152.2 acres.
Is Kariste Järv safe to swim in?
- Kariste 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 Kariste Järv?
- Kariste Järv has a maximum depth of 23 feet. The lake covers 152.2 acres.
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Where this data comes from
80 measurements from 1 monitoring station, 2017–2023. 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-ee80 samples · 2017–2023
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (1)
SJA9298003
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: 2023-09-12
Monitoring stations: 1