Summary

This is an O&M (Operations and Maintenance) Manual Overview document related to a Mobil microfiltration system, prepared in support of the Torrance Refinery Water Recycling Plant Microfiltration Feasibility Study. The document outlines operational and maintenance procedures for microfiltration equipment at the facility, which was originally constructed in 1999 with six units designed for a combined capacity of 3.73 MGD (518 gpm per unit). The overview provides technical guidance and best practices for the existing system while the broader feasibility study evaluates replacement options, identifies capacity improvement needs, and explores the potential integration of West Basin's potable ultrafiltration (PUF) system. The manual serves as a reference document for current system operations and establishes baseline performance and maintenance requirements that will inform recommendations for system modernization and optimization.

The document functions as a technical reference for equipment performance specifications, preventive maintenance schedules, and operational protocols for the existing microfiltration units. This information is critical to the feasibility study's assessment of current system capabilities, deterioration factors that have reduced water production capacity over time, and the comparative analysis of replacement equipment alternatives. The O&M manual provides the operational foundation necessary to evaluate whether equipment upgrades, relocation of existing potable ultrafiltration systems, or comprehensive system replacement would best address the facility's water production and reliability objectives.