8-2-8422_Plan_Sections_and_details_r1.pdf

This engineering drawing is a detailed plan and sections document for the Wilson Substation Oil Containment project, prepared by the Water and Power Department of the City of Pasadena, California. The technical drawing provides a comprehensive layout for an oil containment system, showing plan views (Plan "A"), multiple cross-sectional views (Sections A-A and B-B), and specific installation details for transformer areas, switchgear, and associated infrastructure. The drawing includes precise measurements, installation instructions for concrete pads, PVC piping, trenches, and grading specifications, with notations about existing site conditions and required modifications.

The technical drawing appears to be part of a project designed to meet federal environmental regulations, specifically Title 40 CFR Part 112 (Oil Pollution Prevention), which mandates containment systems to prevent potential oil spills from transformers and electrical equipment. The design focuses on creating a comprehensive oil containment infrastructure that will prevent environmental contamination by providing structured channels, reinforced concrete structures, and strategic grading to manage and direct potential oil spills. The drawing provides technical specifications for constructing an oil containment system that will retrofit the existing Wilson Substation to comply with current environmental protection standards.