TDA Oil Accountability Contract Drawings - Vol 1a of 4.pdf

The file is a technical drawing document (Volume 1a of 4) related to the U.S. Army Corps of Engineers' The Dalles Dam Oil Accountability Measures project. The solicitation is for a competitive, firm-fixed price contract to improve oil monitoring and accountability at The Dalles Dam located in Oregon. The project aims to enhance oil leak detection and monitoring through automated instrumentation, addressing approximately 400,000 gallons of oil at the dam's powerhouse, in compliance with a 2014 settlement agreement with Columbia Riverkeepers.

The contract seeks to upgrade current oil monitoring methods, which currently rely on visual observations and manual record-keeping, by implementing more sophisticated automated systems. The primary objectives include improving accuracy in tracking oils and greases used in turbines, wicket gate bearings, and fish-way equipment, while reducing operations and maintenance costs. The project is expected to help minimize potential oil releases into the Columbia River and meet the Portland District's Standing Environmental Policy 200-1 for Oil Accountability. The solicitation was issued by the Department of the Army Corps of Engineers' Portland Engineering District, with drawings attached as of 18 November 2025.