8-2-8443_Plan.pdf

This is a technical plan drawing for an Oil Containment Plan created by the Water and Power Department of the City of Pasadena, California, specifically for the Wilson and Oak Knoll Substations. The detailed site plan illustrates the proposed oil containment system design, showing the layout of existing and proposed concrete structures, gravel areas, and infrastructure elements. The drawing includes precise measurements, geometric annotations, and a legend indicating the type and location of proposed modifications, with red and green color coding to distinguish proposed changes from existing features.

The project aims to comply with federal Environmental Protection Agency regulations under Title 40 CFR Part 112, which requires preventing potential oil spills from transformers and electrical equipment. The construction scope involves sawcutting and removing existing concrete pads, performing excavation and backfill operations, soil compaction and testing, installing reinforced concrete structures and trench systems with grates, and completing associated demolition and safety infrastructure work. The plan appears to be part of a broader environmental compliance and infrastructure improvement initiative to modernize electrical substations and mitigate environmental risks associated with potential oil spillage.