How many named lakes are in Kanagawa?

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

Where do the Kanagawa readings come from?

Kanagawa 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
丹沢湖	Kanagawa	8.0 µg/L	—	4.0 m	2025
宮ヶ瀬湖	Kanagawa	6.0 µg/L	—	5.2 m	2025
津久井湖	Kanagawa	49 µg/L	—	2.1 m	2025
相模湖	Kanagawa	84 µg/L	—	2.5 m	2025
芦ノ湖	Kanagawa	4.0 µg/L	—	7.8 m	2025

How many named lakes are in Kanagawa?: 5 named lakes in Kanagawa, Japan, have official phosphorus and Secchi, 2025. Values are the authority's measurements, shown as reported.
Where do the Kanagawa readings come from?: Kanagawa 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