Kovelanjärvi Eli Myllyjärvi
Kovelanjärvi Eli Myllyjärvi in Lohja, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.4 m visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 18 µg/L. Maximum depth: 18 ft.
- Clarity
- 1.4 m
- Max depth
- 5.5 m
Why Kovelanjärvi Eli Myllyjärvi has no A–F grade
Kovelanjärvi Eli Myllyjärvi in Finland 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 Finnish Environment Institute (Syke) and the ELY Centres.
Kovelanjärvi Eli Myllyjärvi is a lake in Lohja County, Finland with a maximum depth of 18 feet.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-08-29. 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 Kovelanjärvi Eli Myllyjärvi
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 4.4 ft. Phosphorus level: 60 µg/L. Chlorophyll-a: 18 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.35 m | Not graded |
| Phosphorus | 60 µg/L | Not graded |
| Chlorophyll-a (Algae) | 18 µg/L | Not graded |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 5.5 m |
Where to stay near Kovelanjärvi Eli Myllyjärvi
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Fishing Kovelanjärvi Eli Myllyjärvi
Frequently asked questions about Kovelanjärvi Eli Myllyjärvi
What is the water quality of Kovelanjärvi Eli Myllyjärvi?
- Kovelanjärvi Eli Myllyjärvi in Lohja, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1.4 m visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 18 µg/L. Maximum depth: 18 ft.
Is Kovelanjärvi Eli Myllyjärvi safe to swim in?
- Kovelanjärvi Eli Myllyjärvi 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 Kovelanjärvi Eli Myllyjärvi?
- Kovelanjärvi Eli Myllyjärvi has a maximum depth of 18 feet.
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Where this data comes from
21 measurements from 1 monitoring station, 2019–2024. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Finnish Environment Institute (Syke) and ELY Centres
syke-vesla21 samples · 2019–2024
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
85473
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: 2024-08-29
Monitoring stations: 1