How many named lakes are in Fukuoka?

5 named lakes in Fukuoka, Japan, have official phosphorus and Secchi, 2025. Values are the authority's measurements, shown as reported.

Where do the Fukuoka readings come from?

Fukuoka pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority, with the year each was taken.

Map shows 5 lakes with coordinates

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Lake	Place	Total phosphorus	Chlorophyll-a	Secchi	Year
ます渕ダム	Fukuoka	7.0 µg/L	—	3.5 m	2025
力丸ダム	Fukuoka	17 µg/L	—	3.0 m	2025
寺内ダム	Fukuoka	31 µg/L	—	1.6 m	2025
日向神ダム	Fukuoka	14 µg/L	—	3.3 m	2025
油木ダム	Fukuoka	19 µg/L	—	3.0 m	2025

How many named lakes are in Fukuoka?: 5 named lakes in Fukuoka, Japan, have official phosphorus and Secchi, 2025. Values are the authority's measurements, shown as reported.
Where do the Fukuoka readings come from?: Fukuoka pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority, with the year each was taken.

All official water quality for lakes in Japan

EU bathing ratings and named-lake measurements

Rated bathing waters at campgrounds