Operation and Maintenance

• General
• Components
• Basis
• Annual O&M Cost
• Renewals and Replacement

General

Yearly O&M costs will increase every year due to increase in quantity of water supply.

Components

Find out O&M costs separately for staff, power, chemicals, repairs to civil works, repair to mechanical works and repair to electrical works, depreciation, intrest etc

Basis

Repair and depreciation costs are taken as some realistic percentage of Capital cost of these items.

Annual O&M Cost

Work out annual O & M cost for next 20 years, yearwise.

Renewals and Replacement

During 20 year period some equipment and civil structure may require replacement and as such take cost for such items and year when it will be required