1. Compare sustainability metrics for communities before and after the new WFP approach (implemented in 2007) in terms of — water, latrines, hygiene.

2. Develop and pilot-test an improved cost-effective design for the superstructure of a pour flush pit latrine using local materials and local construction techniques; and size the pits and the superstructure to maximize system life — with Arquitecta Victoria Delgado who specializes in earth construction.

3. Prepare an environmental and cost life-cycle-analysis for various latrine options

4. Complete a time study for the water collection process and determine a realistic diurnal curve for water usage.