Kahala Järv
Kahala Järv in Harju, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.1 m visibility. Phosphorus: 47 µg/L. Chlorophyll-a (algae): 9.1 µg/L. Maximum depth: 9.2 ft. Surface area: 852.3 acres.
- Clarity
- 1.1 m
- Max depth
- 2.8 m
- Area
- 345 ha
Why Kahala Järv has no A–F grade
Kahala 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).
Kahala Järv is a 852-acre lake in Harju County, Estonia with a maximum depth of 9 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-09-11. 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 Kahala Järv
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 3.6 ft. Phosphorus level: 47 µg/L. Chlorophyll-a: 9.1 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.1 m | Not graded |
| Phosphorus | 47 µg/L | Not graded |
| Chlorophyll-a (Algae) | 9.1 µg/L | Not graded |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 2.8 m |
| Surface Area | 345 ha |
Where to stay near Kahala Järv
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Fishing Kahala Järv
Frequently asked questions about Kahala Järv
What is the water quality of Kahala Järv?
- Kahala Järv in Harju, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.1 m visibility. Phosphorus: 47 µg/L. Chlorophyll-a (algae): 9.1 µg/L. Maximum depth: 9.2 ft. Surface area: 852.3 acres.
Is Kahala Järv safe to swim in?
- Kahala 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 Kahala Järv?
- Kahala Järv has a maximum depth of 9.2 feet. The lake covers 852.3 acres.
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Where this data comes from
24 measurements from 1 monitoring station, 2020–2024. 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-ee24 samples · 2020–2024
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (1)
SJA9632000
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: 2024-09-11
Monitoring stations: 1