[3][4][5] Tests conducted in March 2018 found no residual fuel in the lake following a cleanup effort by the Japan Maritime Self-Defense Force.

Fishermen were given 85,000,000 yen (about $800,000) in a joint payment from the US and Japanese governments for loses incurred while the lake was closed to fishing during the cleanup efforts.

[6][7] Lake Ogawara is an abundant habitat for fish and birds, and is recognized as such by the Japanese Ministry of the Environment.

In 1996 the sound of wild birds on the shores of Lake Ogawara was selected by the Ministry of the Environment as one of the 100 Soundscapes of Japan.

[8] In 2002, the Ministry of the Environment classified Lake Ogawara to be one of the 500 Important Wetlands in Japan, particularly for its biodiversity of aquatic flora, insects, and freshwater shellfish.