This Sources Sought announcement is a tool to identify businesses with the capability to accomplish the prospective services requirement and is for informational/market research purposes only. THIS IS NOT A REQUEST FOR PROPOSALS, QUOTATIONS OR BIDS, NOR A SYNOPSIS OF A PROPOSED CONTRACT ACTION. No reimbursement will be made for any costs associated with providing information in response to this Sources Sought announcement or any follow up information. NO SOLICITATION IS CURRENTLY AVAILABLE. This is not a request to be placed on a solicitation mailing list and is not to be construed as a commitment by the Government. The purpose of this Sources Sought announcement is to gain knowledge of potentially qualified businesses to include Other Than Small Business (Large), Small Business, 8(a) Program, Woman Owned Small Business, Economically Disadvantaged Women Owned Small Business (EDWOSB), Veteran Owned Small Business, Service-Disabled Veteran Owned Small Business, Small Disadvantaged Business, and HUBZone contractor sources; as well as their size classifications relative to the NAICS code 541715 with a Small Business Size Standard of 1,000 employees. Responses to this Sources Sought announcement will be used by the Government to make appropriate acquisition decisions. Depending upon the responses associated with the business categories listed above, the solicitation may be set aside in one of those categories, be issued as unrestricted and open to both small and large businesses, or proceed as a sole source acquisition. After review of the responses to this announcement and if the Government still plans to proceed with these services, a separate solicitation announcement will be published on www.sam.gov. Responses to this announcement are not an adequate response to any future solicitation announcement. SERVICE DETAILS: U.S. Army Corps of Engineers (USACE), Seattle District, is seeking interested sources for the following services: Green River Smolt Trap, King County, Washington The U.S. Army Corps of Engineers (USACE) requires support to monitor, evaluate, and report on the biological outcomes of revised flow management operations at the Howard A. Hanson Dam (HAHD). Currently, USACE is required to conduct flow management operations that will reduce outflow rates at Howard A. Hanson Dam (HAHD) to a maximum of 5,000 cubic feet per second (cfs) during moderately high inflow events. This capped flow is anticipated to decrease redd scour and increase the egg-to-migrant survival of naturally originating, Endangered Species Act (ESA)-listed Chinook salmon within the Green River, Washington. To comply with mandate requirements, USACE is seeking contractor support to collect the necessary ecological data and generate reports for the National Marine Fisheries Service (NMFS) to determine if these operational changes are producing the intended biological outcomes. Proposed services will result in a firm fixed price (FFP) award. Specific Tasks 1 – Dow…