The household survey collected data on current water supply and sanitation access, use and functionality, attitudes and practices towards water supply and sanitation; demand for water supply improvements. Questions were pilot tested to assess acceptability, reliability, validity and responsiveness to the subject matter, with the questionnaires revised accordingly.

In each study site, the fieldworkers (survey team) comprised 4 interviewers and 1 supervisor. Questions were orally translated and asked in the local languages. The supervisors also re- administered the questionnaires to a limited number of respondents (5) and on a selected number items to establish the inter-observer reliability of the data. The teams executed the household survey using Computer Assisted Personal Interviewing (CAPI) methods. Enumerators and Supervisors used tablet pc’s or smart phones to conduct the interviews.