Ammendment 002-Exhibit A - Existing Oil Containment Drawings.pdf

The document titled "Amendment 002, Exhibit A - Existing Oil Containment Drawings" is a technical drawing set for the Northern Wasco County People's Utility District (NWCPUD) Three Mile Substation project located in The Dalles, Oregon. The drawings provide detailed schematics for an oil/water separator tank, collection box, and substation infrastructure, including plan views, section views, and equipment layout specifications. The drawings illustrate precise measurements, slope gradients, transformer locations, and structural details for the substation's control enclosure and associated environmental containment systems.

The technical drawings are part of a comprehensive bid package for electrical substation site development, focusing on infrastructure modifications that include replacing existing relays, controls, and circuitry, and constructing a new concrete masonry unit (CMU) control building. The drawings demonstrate meticulous engineering considerations for oil containment, electrical equipment placement, and site grading, which are critical for ensuring environmental safety and operational reliability of the electrical infrastructure. The level of detail suggests a sophisticated engineering approach to substation design, with careful attention to regulatory compliance and environmental protection standards.