In December 2010, a technical exchange visit was organised between FAO and IRC. The objective of this visit was to further develop the "domestic water supply and sanitation" component of the MASSMUS methodology for assessing multiple uses of water in large-scale irrigation systems. This component was field-tested in the Krishna Western Delta irrigation system, in Andhra Pradesh, India.

The main conclusions with respect to domestic uses is that the most important contributions irrigation makes to domestic supplies is through direct supply of bulk water to city, towns and villages from canals, and through indirect use of groundwater. This is to some extent reflected also in canal operation procedures, where priority is given to filling reservoirs and village tanks for domestic uses. However, domestic water users are not represented in the governance structure of the irrigation system. One area of concern is the lack of adequate wastewater management facilities. As a result, wastewater is used in an untreated manner for irrigation. Although the extent of this is limited compared to conventional irrigation practices, locally it represents an important source of water.

Apart from domestic uses, the KWD also supports other uses of water. These include food production, fish and aquaculture and animal husbandry. A relatively large part of water in the command area is consumed by natural vegetation. In terms of the value created by these different uses, the KWD shows a similar pattern as other similar irrigation systems in the region, with crop production representing 60% of the total value created, with the rest shared between the other uses.