This workshop held on 15 July 2005 had three objectives:

1. to further discuss and define how the MUS learning alliance in the Valle del Cauca will operate
2. to select case studies for joint documentation and research involving the learning alliance members
3. to arrange field visits to these case studies/ pilot projects.

Seven possible case studies were proposed prior to the workshop and are each summarised in this report. Three case studies were selected for further investigation based upon the priorities of the learning alliance members. These were:

• La Palma – Tres Puertas (Restrepo): the project PAAR (a department level rural water supply programme) is re-designing the rural water system in this settlement based upon a demand of 40m3/household/month in order to meet household-level productive as well as domestic needs.
• Minidistrito de Riego de Cajamarca (Roldanillo): there are three communities in this area, two both have separate irrigation and domestic systems, and one has an irrigation system that is also used for domestic purposes. The case study will study the advantages and disadvantages of having a multiple use system (in one village) compared to two single use systems in the other two villages.
• Microcuenca El Chocho (Cali): this catchment close to the Cali suffers from water scarcity, and piped water systems struggle to supply sufficient water for both domestic and productive uses. At the same time systems are affected by productive uses upstream.

Field visits to these sites were arranged for September 2005 and case studies will be completed by the end of 2005. Preliminary results will be discussed in the next Valle del Cauca learning alliance meeting to be held as an additional event of the AGUA2005 conference on 3 November 2005..

Four student research (MSc thesis) projects were also presented and discussed in the workshop. One of these is in the Valle de Cauca focusing on the domestic water system in a small town (Costa Rica) where pig rearing is an important water use. The other three studies are located in the neighbouring department of Quindio (where a learning alliance will also be developed on multiple uses of water) on themes relating to the legal and institutional framework relating to water supply systems and multiple use, catchment level water management, and farm level water management.

A number of specific actions for follow up work were identified in the workshop including a workshop to be organised by the PAAR programme on multiple uses of rural water supply systems. Annexes to the report include details of participants and further information.