From the 16th to the 20th of August 2004, was held the third workshop "Conceptual Framework Meeting II" of the NEGOWAT project in Sao Paulo. This workshop organized organized by Apta aimed to present the state of advancement of the work in each country (Brazil/Bolivia). It focused on discussions of field work results and on the preparation of the implementation of WP4 and WP5. During previous meetings it appeared that the scientists involved in the project lacked the indepth knowledge of the local situation necessary to elaborate and discuss a framework on the functioning of peri-urban catchment. Consequently, it was decided to focus this meeting on the presentation of the thematic field results and to postpone the discussions related to the framework and development of discussion tools to a following meeting. More specifically the objectives of the workshop were: 1) To present and discuss in depth the outcomes of the field work in the thematic areas (2 days were devoted to the presentation and the discussion). 2) To present the state of advancement of both team in the development and implementation of a methodology of intervention in negotiation process. 3) To initiate the discussion on: elaboration of training tools (WP5) and elaboration of a common methodology to monitor the processes. 4) To advance in the elaboration of joint publication. The detailed program of the meeting is presented in annex. This report synthetically presents the main conclusions of the meetings. The different presentations are available in the internal webpage of the Negowat project (www.negowat.org).