of this operational and maintenance policy is reviewed, and the manual is updated to reflect the practices that are either not covered or incorrectly covered in the manual. It is certainly debatable whether this manual could be successfully transported to similar systems in other parts of the world, although it is expected that the principles involved will be similar.
Acknowledgements
The author wishes to thank the Institution of Civil Engineers and the Royal Academy of Engineers for their financial assistance and the Kumasi Metropolitan Assembly for its co-operation which made this work possible.
5.6
References.
Bakalian, A., Wright, A., Otis, R. and Azevedo Netto, J.M. (1994).Simplified Sewerage: Design Guidelines. Water and Sanitation Report No. 7. Washington, DC: The World Bank.
Institution of Civil Engineers (1988). Conditions of Contract for Minor Works. London: Thomas Telford Ltd.
WSA/FWR (1991). A Guide to Sewerage Operational Practices. Swindon: Foundation for Water Research.
