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LakeQuality

Lake map

Map shows 3 lakes with coordinates

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Named lakes

LakePlaceTotal phosphorusChlorophyll-aSecchiYear
市房ダム貯水池Kumamoto15 µg/L—1.1 m2025
竜門ダム貯水池Kumamoto11 µg/L—3.4 m2025
緑川ダム貯水池Kumamoto29 µg/L—2.4 m2025

Frequently asked questions

How many named lakes are in Kumamoto?
3 named lakes in Kumamoto, Japan, have official phosphorus and Secchi, 2025. Values are the authority's measurements, shown as reported.
Where do the Kumamoto readings come from?
Kumamoto pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority, with the year each was taken.

Official surface phosphorus, chlorophyll-a, and/or Secchi. Not a LakeQuality A–F grade — the authority does not publish a letter on this scale.