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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Table 6. Performance Limiting Factors <br /> <br />Type Effects Limiting Factor <br /> Rating <br />Design A Clarifier function and performance, including rapid mix <br /> process, flocculation process, and sedimentation. <br />Design B Improvements to chemical addition systems and dry chemical <br /> handling and storage. <br />Design A Clearwell detention time with associated changes in chemical <br /> feed systems and high service pumps. <br />Design A Standby power system to maintain the WTP on-line in an <br /> emergency. <br />Maintenance B Lack of spare parts inventory for vital pieces of equipment. <br />Maintenance B Repair of backwash flow meter and influent flow meter. <br />Maintenance C Repair of distribution flow meter in meter vault. <br />Maintenance B Repair of storage tank level sensor and readout. <br />Operations A Filter influent and effluent monitoring points, and filter <br /> operation; filter-to-waste requirements. <br />Operations B Accuracy check of pump running time meters, flow meters, <br /> chemical feed rates. <br />Operations C Sludge handling and reclamation of backwash water (need for <br /> future improvement to meet future standards). <br />Administration A Manpower requirement with the objective of hiring additional <br /> staff. <br />Administration B Preventive maintenance system. <br />Administration B Preventive maintenance training and water process training for <br /> operators. <br /> <br />26 <br />