Ahnejärv
Ahnejärv in Ida-Viru, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3 m visibility. Phosphorus: 12.5 µg/L. Chlorophyll-a (algae): 4.1 µg/L. Maximum depth: 29.9 ft. Surface area: 14.3 acres.
- Clarity
- 3 m
- Max depth
- 9.1 m
- Area
- 6 ha
Why Ahnejärv has no A–F grade
Ahnejärv 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).
Ahnejärv is a 14-acre lake in Ida-Viru County, Estonia with a maximum depth of 30 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-09-22. 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 Ahnejärv
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 9.7 ft. Phosphorus level: 12.5 µg/L. Chlorophyll-a: 4.1 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.95 m | Not graded |
| Phosphorus | 12.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 4.1 µg/L | Not graded |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9.1 m |
| Surface Area | 6 ha |
Where to stay near Ahnejärv
Compare lakeside cabins, hotels, and vacation rentals near Ahnejärv in Ida-Viru, Estonia — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Ahnejärv
Frequently asked questions about Ahnejärv
What is the water quality of Ahnejärv?
- Ahnejärv in Ida-Viru, Estonia has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 3 m visibility. Phosphorus: 12.5 µg/L. Chlorophyll-a (algae): 4.1 µg/L. Maximum depth: 29.9 ft. Surface area: 14.3 acres.
Is Ahnejärv safe to swim in?
- Ahnejärv 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 Ahnejärv?
- Ahnejärv has a maximum depth of 29.9 feet. The lake covers 14.3 acres.
Explore Ahnejärv across LakeGrade
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Where this data comes from
28 measurements, 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-ee28 samples · 2025
Analytical methods
- KESE I-level monitoring
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: 2025-09-22
Monitoring stations: 0