Lake Sonoma Sewage Pumping Vault and Portable Restroom Rental Services. This is a combined synopsis/solicitation for commercial services prepared in accordance with Revolutionary FAR Overhead (RFO) Part 12. This acquisition is for full and open competition. Offers are being requested and a separate written solicitation will not be issued. An optional site visit is scheduled for 09 June 2026 at 10:00am PDT. The U.S. Army Corps of Engineers (USACE), San Francisco District is seeking to contract professional septic services for Warm Springs Dam (WSD) (Lake Sonoma) located at Geyserville, California. The contractor work and responsibility shall include all job planning, programming, scheduling, administration, inspection, and management necessary to accomplish specified services. The contractor shall make sure that work is accomplished in accordance with the contract and all applicable laws, municipal codes, regulations, and/or written directives issued by the Contracting Officer. Please see attached documents for details.