The participatory approach for Davao city is evaluated through access to information on a local level, and meaningful opportunities for engagement. Management as a successful process requires criteria that are specific and unique to the grassroots framework, where participants and users are included in the collection, dissemination, and benefits of the knowledge and data, that is the co-generation of knowledge in a practiced, politically recognized, on-the ground reality. The holistic picture of water balances of the watershed constructed in this study is a useful interpretation on the basis...