夏瀬ダム
Akita, JapanView mapDirections
MOE publishes the water-quality measurements for 夏瀬ダム. Here is what has been measured.
- Limited data
夏瀬ダム in Akita, Japan has official water-quality measurements, shown as reported. Water clarity: 5 m visibility. Phosphorus: 6 µg/L.
How 夏瀬ダム is classified
夏瀬ダム in Japan 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 and phosphorus, but not algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Ministry of the Environment (Japan).
夏瀬ダム is a lake in Akita County, Japan.
Source: the Ministry of the Environment (Japan) — not the EPA Water Quality Portal, last sampled 2024-10-15. Methodology: how these readings are compared.
What 夏瀬ダム is good for
From access and monitoring records, not editorial picks.
- Clear water16.4 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether 夏瀬ダム is safe to swim in today is a call for the Ministry of the Environment (Japan) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for 夏瀬ダム
These are the measurements MOE publishes for 夏瀬ダム. More on the source.
Crystal clear, you can see 16.4 ft down. Phosphorus 6 µg/L. TSI 33.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 6µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading 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. | 33 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about 夏瀬ダム
Answers come straight from the public measurements and survey records on this page.
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Fishing 夏瀬ダム
Frequently asked questions about 夏瀬ダム
Where is 夏瀬ダム?
- 夏瀬ダム is a lake in Akita, Japan. This page reports official water-quality measurements, shown as reported.
What is the water quality of 夏瀬ダム?
- 夏瀬ダム in Akita, Japan has official water-quality measurements, shown as reported. Water clarity: 5 m visibility. Phosphorus: 6 µg/L.
Is 夏瀬ダム safe to swim in?
- 夏瀬ダム 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.
Explore 夏瀬ダム across LakeQuality
More lakes in Japan
Where this data comes from
13 measurements from 1 monitoring station, 2016–2024. Retrieved from Japan MOE public water-body monitoring (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Ministry of the Environment (Japan)
moe-jp13 samples · 2016–2024
Analytical methods
- MOE public water body monitoring (kosui, lakes)
Monitoring station identifiers (1)
0520490
Authority classifications are shown as the authority published them. See where the data comes from and data sources.