Tervajärvi
Kouvola, FinlandView mapDirections
Syke publishes the water-quality measurements for Tervajärvi. Here is what has been measured.
- 26 ft max depth
- Limited data
Tervajärvi in Kouvola, Finland has official water-quality measurements, shown as reported. Water clarity: 3.1 m visibility. Phosphorus: 3.9 µg/L. Chlorophyll-a (algae): 2.8 µg/L. Maximum depth: 26.2 ft.
How Tervajärvi is classified
Tervajärvi in Finland is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Finnish Environment Institute (Syke) and the ELY Centres.
Tervajärvi is a lake in Kouvola County, Finland with a maximum depth of 26 feet.
Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2026-08-05. Methodology: how these readings are compared.
What Tervajärvi is good for
From access and monitoring records, not editorial picks.
- Clear water10.2 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Tervajärvi is safe to swim in today is a call for the Finnish Environment Institute (Syke) and the ELY Centres and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Tervajärvi
These are the measurements Syke publishes for Tervajärvi. More on the source.
Good clarity, visible to about 10.2 ft. Phosphorus 3.9 µg/L. Chlorophyll-a 2.8 µg/L. TSI 36.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.1m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 3.9µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 2.8µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 36 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Tervajärvi
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
8 m
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Frequently asked questions about Tervajärvi
Where is Tervajärvi?
- Tervajärvi is a lake in Kouvola, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Tervajärvi?
- Tervajärvi in Kouvola, Finland has official water-quality measurements, shown as reported. Water clarity: 3.1 m visibility. Phosphorus: 3.9 µg/L. Chlorophyll-a (algae): 2.8 µg/L. Maximum depth: 26.2 ft.
Is Tervajärvi safe to swim in?
- Tervajärvi 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 Tervajärvi?
- Tervajärvi has a maximum depth of 26.2 feet.
Explore Tervajärvi across LakeQuality
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Where this data comes from
18 measurements from 2 monitoring stations, 2017–2026. 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-vesla18 samples · 2017–2026
Analytical methods
- SYKE VESLA
Monitoring station identifiers (2)
1227166506
Authority classifications are shown as the authority published them. See where the data comes from and data sources.