To diagnose the dysfunction of the Tohé Lake, the interview of the populations and the resource persons of the village on the functioning of the lake is one of the programmed activities. During the celebration of the World Environment Day in Logokpo Two resource persons (old from the village) appointed by the project team to tell the story of the birth of the village and the functioning of Lake Tohe in the past .
The story of these resource people shows that the foundation of the village of Logokpo is linked to the presence of the lake, which had caught the attention of the old parents who on their journey decided to found the village next to the lake to take advantage of its resources which are the fish. However, in the past, the lake has experienced a dysfunction marked by the development of aquatic plant species.