a. Tariff - Tariff per cubic meter will start at P10/m3 in a year and will increase by P2/m3 every after 5 years over the 20 year life of the project.
b. Schedule of Interconnections - 10,000 will be interconnected during year 1 of operations and the other 10,000 during year 2. The number of connections (total of 20,000) will be broken down into 16,000 domestic and 4,000 commercial users.
c. Estimate of water demand - To arrive at the estimate of water demand, average consumption per connection was assumed at 30 cubic meters per month.
d. Construction period - Construction period for the construction/installation of wells transmission systems, building/workshops will take two (2) years. 40% of total project cost will be spent in year 1 of construction and the rest in year 2.
e. Operations and Maintenance Cost - O&M costs are all in constant 2011 prices. The assumed escalation for consumables/spares, repairs/maintenance and contingencies (of 2% per year) are increases in real costs due to merit adjustments and real increases in repairs/maintenance as the system becomes old.