KS - KIRWIN NWR - Herbicide Application

The Fish and Wildlife Service seeks herbicide application services at Kirwin National Wildlife Refuge in Kansas, with quotes due September 14, 2026. The procurement is a 100 percent Women-Owned Small Business set-aside.

Place of performance is Kirwin, Kansas (702 E. Xavier Road, Phillips County). The contractor must treat approximately 211 acres of phragmites infestation using imazapyr-based herbicide (Polaris at 4 pints per acre with Rainier EA surfactant, unless alternative products are approved by the Station Manager and Invasive Species Coordinator). Application methods must provide maneuverability, accessibility, coverage, and precision across variable terrain, wetland and shoreline habitats, and dense vegetation, with a 50-foot buffer around infestation boundaries and no application when wind speeds exceed 10 miles per hour. All work must be conducted during daylight hours only within normal duty hours (Monday through Friday, 8:00 a.m. to 4:00 p.m.) or during approved non-duty hours with advance Contracting Officer approval. Operations shall cease immediately if whooping cranes are observed on the refuge. Performance period runs September 18 through October 31, 2026, with preferred treatment window late August through September 2026. The contractor is responsible for all required federal, state, and local permits and licenses.

Pricing is on a per-acre basis with a total quotation for all 211 acres under firm-fixed-price. Evaluation uses a tradeoff process weighing technical approach, technical experience, past performance, and price. Technical submissions must include a narrative describing application methods, equipment, staffing, and schedule, plus up to three completed projects of similar size and scope with work scope, application method, acreage treated, completion date, and customer contact information. Service Contract Act prevailing wage rates apply (Wage Determination 2015-5749, effective August 13, 2026). NAICS is 115112; PSC is F105.