In 1995 Development Workshop undertook a study of the informal water market in Luanda from the point of view of consumers. It looked at how people who do not have a consistent connection to potable water from the underground pipeline (the majority of the population) obtain water. The 1995 study looked into various aspects of the informal water market including the trucks who transport the water, the people who sell the water, and the clients themselves. A further study was carried out in 1998. These studies are now over a decade old and do not take into account the significant urban growth (population size, density, and in occupied territory) that has occurred since, or possible changes in the informal water market that may have occurred for other reasons.