The Comité de bassin Massawippi-Tomifobia (CBMT) was organized in 1998 by the Massawippi Water Protection Inc. and was incorporated as a non-profit organization in 2002. It was established because the members of the Massawippi Water Protection Inc. felt that Lake Massawippi's water problems neccessitated corrective measures far upstream from the lake, which came to empass the entire watershed. Although formed by the Massawippi Water Protection Inc., the CBMT is an independent organisation directed by 15 members, 10 of whom are delegates from various agricultural, forestry, municipal, and commercial groups. The CBMT's mission has been outlined to sensitize people to the importance of the watershed as well as to their interventions to improve water quality and the environment by working with citizens, users of the area, municipalities, the MRCs, federal and provincial ministries and other organizations. Some of the activities that have been realised during their existence are the removal of logjams on the bed and along the shores of the Tomifobia river and the planting of shrubs and trees along the shorelines of the Tomifobia and Niger rivers. Their activities are funded, for a significant part, by donations and government grants.
The CBMT was officially dissolved on 6 May 2005.