Rough rock sheep DIP VAT remediation

The Bureau of Indian Affairs Navajo Region is seeking environmental remediation services for the Rough Rock Sheep Dip Vat (SDV) site located on the Navajo Nation Reservation in Apache County, Arizona. The project involves a comprehensive two-phase cleanup of a former livestock pesticide site contaminated with toxaphene, requiring the contractor to provide all labor, materials, equipment, and transportation necessary for site investigation, structural demolition, contaminated soil excavation and disposal, and site restoration. The scope includes developing work plans and health and safety protocols, conducting soil and water sampling to determine contamination extent, removing all SDV structures, disposing of contaminated materials at approved facilities, and restoring the site with clean fill and native vegetation reseeding. The solicitation was originally due September 2, 2025, but has been extended to September 9, 2025 at 12:00 PM MDT, with questions accepted until September 2, 2025. Evaluation will be based on firm-fixed-price quotes that address all Statement of Work elements, with submissions required via email to the Contracting Officer.

This procurement is designated as a 100% set-aside for Indian Small Business Economic Enterprises (ISBEEs) under NAICS code 562910 with a small business size standard of $25 million. No incumbent contractors are identified in the solicitation documents. While specific award values are not disclosed, the solicitation includes a detailed Independent Government Cost Estimate covering multiple phases of environmental remediation work. The contract performance period is established as 120 calendar days, with work potentially beginning as early as April 29, 2025 and extending through August 26, 2025, though dates are subject to NEPA compliance requirements. The work site is located at coordinates 36°28'21.98"N 109°46'33.66"W in the Tsech' Izhi Chapter area of the Navajo Nation, involving an estimated 19.9 cubic yards of contaminated soil based on previous investigations. Contractors must possess specific qualifications in hazardous waste disposal, asbestos remediation, and lead-based paint management to meet project safety and environmental protection requirements.