Kahtalammi Lake
Kahtalammi Lake in Nokia, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1 m visibility. Phosphorus: 28 µg/L. Chlorophyll-a (algae): 13 µg/L.
- Clarity
- 1 m
Why Kahtalammi Lake has no A–F grade
Kahtalammi Lake 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.
Kahtalammi Lake is a lake in Nokia County, Finland.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2018-08-07. 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 Kahtalammi Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 3.3 ft of visibility. Phosphorus level: 28 µg/L. Chlorophyll-a: 13 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 m | Not graded |
| Phosphorus | 28 µg/L | Not graded |
| Chlorophyll-a (Algae) | 13 µg/L | Not graded |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Kahtalammi Lake
Compare lakeside cabins, hotels, and vacation rentals near Kahtalammi Lake in Nokia, Finland — 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 Kahtalammi Lake
Frequently asked questions about Kahtalammi Lake
What is the water quality of Kahtalammi Lake?
- Kahtalammi Lake in Nokia, Finland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 1 m visibility. Phosphorus: 28 µg/L. Chlorophyll-a (algae): 13 µg/L.
Is Kahtalammi Lake safe to swim in?
- Kahtalammi Lake 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.
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Where this data comes from
3 measurements from 1 monitoring station, 2018. 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-vesla3 samples · 2018
Analytical methods
- SYKE VESLA
Monitoring station identifiers (1)
66296
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: 2018-08-07
Monitoring stations: 1