This is a combined synopsis/solicitation for a Firm-Fixed-Price contract to provide comprehensive operations and maintenance for the Electric Dispersal Barrier System on the Chicago Sanitary and Ship Canal in Romeoville, IL. The period of performance is a 12-month base period plus three 12-month option periods. The requirement is a 100% Small Business Set-Aside under NAICS code 561210 with a $47 million size standard. Award will be based on a combination of price and past performance, which are of equal importance. Offerors must include a completed Past Performance Questionnaire as part of their proposal submission.