Attachment_14_Preventive_and_Predictive_Maintenance_Summary.xlsx

This is a Preventive and Predictive Maintenance Summary for the Yuma Desalting Plant (YDP), listing comprehensive maintenance activities across seven operational areas. The document details over 1,100 individual maintenance tasks organized by plant area (Intake, Ferric/Lime Slaker, Sand/Sludge Handling, Dual Media Filters, Mechanical Shop, Ammonia Metering, and Clearwell) and equipment category (electrical, mechanical, instrumentation, pumps, tanks, and valves). Each maintenance entry specifies the asset location, equipment description, PM task description, responsible craft discipline (Electrician, Mechanic, Instruments technician, or Quality Assurance/Safety), current status (Active or Inactive), frequency of performance (ranging from weekly to annually), and corresponding job plan number.

The maintenance activities encompass routine inspections, calibrations, and component cleaning across critical plant systems including intake pumps, lime slaking equipment, ferric sulfate dosing systems, sand/sludge treatment basins, dual media filter units, reverse osmosis pumps, and clearwell instrumentation. Frequencies vary significantly based on equipment criticality and failure risk, from weekly safety shower inspections to annual unit substation and energy recovery unit checks. The summary supports the broader Indefinite Delivery/Indefinite Quantity (IDIQ) contract for YDP Operation and Maintenance (Solicitation 140R3026R0012) issued by the Department of Interior Bureau of Reclamation, establishing the baseline preventive maintenance program that contractor personnel would execute to ensure reliable plant operations and regulatory compliance.