The U.S. Army Corps of Engineers Chicago District is conducting a market survey for firms capable of supplying specific Pulsed Power Switch Assemblies designed by Astrol Electronics for the Chicago Sanitary & Ship Canal Barrier System. The required items are three distinct switch assemblies. This is a sources sought notice only, not a request for proposals, and does not commit the government to a future contract. Interested contractors are asked to respond with company and capability information by 3:30 p.m. Central Time on August 1, 2024. The performance location is implied to be related to the Chicago-area canal system.