About a third of the world’s urban population lived in slums in 1990. 
Estimated total number might rise to 1.5 billion by 2020.


Public policies towards slums are highly politicized based on factors such as strength of NGO (Non-governmental organizations) , other social groups and politics of slum management.
Governments have dealt with slum "problems" by either:

1. clearing slums through forced or legal evictions; [ in Africa and Asia, over 14 million people were evicted between 1998 and 2006 (UN-Habitat, 2007)]
2. applying public policies that range from benign neglect to occasional interventions; and
3. regularising settlement conditions

Access to Safe Water in Slums

More than a third of African countries accessibility to safe drinking water have actually declined from 1990 to 2004

http://waterwiki.net/index.php/Access_to_Water_in_the_Slums_of_the_Developing_World

ReachOutWater Solutions (ROWS) 

non-profit development consultant proposes that the solution for slum residents needs consists of four components 

1. increased quantity of water (The World Health Organiza- tion (WHO) recommends 20 liters of potable water and 30 liters of non-potable treated water per person per day.)

2. improved quality of water (The Slum Water Program will serve the market needs by removing 99.99 percent of bacteriological contamination utilizing a small ultraviolet (UV) treatment device which is already in use throughout rural India.)

3.  improve access to water (either collect the water from the Slum Water Program stations, or to have water delivered directly to their home for a small fee

4.  partnering with the Municipal corporation and established community based organizations (provide a water services solution managed by the community utilizing an exist- ing customer base that already pays for improved infrastructure services)

www.acarainstitute.org/?300604/ReachOutWaterSolutions.pdf