The U.S. Fish and Wildlife Service (FWS) is seeking quotations for the procurement of chemicals to treat Phragmites at the Columbia National Wildlife Refuge in Othello, Washington. The solicitation, identified as number 140FS125Q0140, requires the delivery of 180 gallons each of Aqua Star herbicide and Ecomazapyr 2 SL herbicide, along with 120 gallons of an aquatic-approved surfactant, all of which must be registered for use in Washington and Oregon. This initiative is crucial for managing invasive species and maintaining the ecological balance within the refuge. Quotes are due by September 18, 2025, at 1700 ET, and must be submitted via email to Kathryn Coltran at kathryn_coltran@fws.gov, with technical questions due by September 16, 2025. Vendors must also be registered in SAM.gov to be eligible for the firm-fixed-price contract, which will be awarded based on the lowest technically acceptable price.