The Department of the Interior Fish and Wildlife Service issued a purchase order to Guillermo Landeros on September 21, 2026, for herbicide application services at the Sonny Bono Salton Sea National Wildlife Refuge, with a ceiling value of $76,500 under a Total Small Business set-aside.
Performance occurs in Calipatria, California. The contractor treats approximately 850 cumulative acres of forage fields using government-furnished herbicides (2,4-D, Dicamba, Glyphosate, Ethotron SC, and Milestone) and provides all labor, qualified California-licensed pesticide application personnel, ground-based spray equipment, and pumping and filtration equipment. The contractor manages equipment calibration, EPA and CDPR regulatory compliance, buffer zones, weather monitoring, and detailed application records including applicator credentials, dates, acreage, herbicides, rates, and conditions. Work runs October 1, 2026, through August 31, 2027, with most applications between late October and end of January. An optional second treatment may be exercised at government discretion. The solicitation was posted August 28, 2026, with quotes due September 15, 2026.