Karijärv
Karijärv in Tartu, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.6 m visibility. Phosphorus: 36 µg/L. Chlorophyll-a (algae): 11.7 µg/L. Maximum depth: 49.2 ft. Surface area: 207.6 acres.
- Clarity
- 1.6 m
- Max depth
- 15 m
- Area
- 84 ha
Why Karijärv has no A–F grade
Karijärv 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).
Karijärv is a 208-acre lake in Tartu County, Estonia with a maximum depth of 49 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-09-11. 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 Karijärv
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 5.1 ft. Phosphorus level: 36 µg/L. Chlorophyll-a: 11.7 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.55 m | Not graded |
| Phosphorus | 36 µg/L | Not graded |
| Chlorophyll-a (Algae) | 11.7 µg/L | Not graded |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 15 m |
| Surface Area | 84 ha |
Where to stay near Karijärv
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Fishing Karijärv
Frequently asked questions about Karijärv
What is the water quality of Karijärv?
- Karijärv in Tartu, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.6 m visibility. Phosphorus: 36 µg/L. Chlorophyll-a (algae): 11.7 µg/L. Maximum depth: 49.2 ft. Surface area: 207.6 acres.
Is Karijärv safe to swim in?
- Karijärv 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 Karijärv?
- Karijärv has a maximum depth of 49.2 feet. The lake covers 207.6 acres.
Explore Karijärv across LakeGrade
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Where this data comes from
44 measurements from 2 monitoring stations, 2019–2025. 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-ee44 samples · 2019–2025
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (2)
SJA4477000SJA4477004
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: 2025-09-11
Monitoring stations: 2