Advances in Water Treatment and Enviromental Management

102 WATER TREATMENTacceptance, communication installation and outstation installation wasdefined. Provision has been made for the existing telemetry and the newPMCS equipment to operate independently and, as part of the testing andcommissioning strategy, sites completed early will be exercised using interimtelemetry provisions.During this extensive period working within the operational Districts, carefulplanning and close co-ordination between contractors and operational staffis essential. The quality of work and the safe working practices demandedrequire a rigorous and structured approach to site access, supervision andtake-over.CONCLUSIONThe business case approach adopted by Severn Trent Water established aculture and philosophy for the PMCS project based on business need.The establishment of the need and the benefits identified by DistrictManagers have enabled a clear and unambiguous user requirement to bedefined and agreed.The design stage has involved a number of elements which emphasise therole of client and that of the PMCS project team. The use of the designintent documents to enable the owner, as opposed to the equipmentsupplier, to understand what was to be delivered has contributedsignificantly to the owner acceptance of the project. Combined with modernmethodologies and practices has been the cultural changes in attitudes tosolving the business needs rather than the exploration of the technology.Some changes to the basic signal provision have occurred due in part to thegreater emphasis on environmental and customer expectations. The businesscase has been flexible in that while additions have been appraised, theirinclusion in the scheme is based on need and benefit.The design activities have met the prime objective ie. that of establishingthe detail necessary to describe to owners and suppliers what is technicallyrequired.Bids are of a high quality and fall within the confidence levels expected attendering and are within the budget.The auditing of some 1200 sites has been successfully completed withinthe timescales and has generated considerable data concerning sites andthe existing assets and facilities. The use of the computer databases in the