This article is a product of a nine-month training and application program implemented by the micro component of the Economic and Social Impact Analysis/Women in Development (ESIA/WID) and the Food Systems Program of the East-West Center Resource Systems Institute (RSI). It reviews the existing reports, records and studies related to water sector. Findings show basic unit being directly proportional to cash requirements of the water district but inversely proportional to the number of its connectors.