Sarah Welch

Sarah Welch serves as the primary contracting lead for the Washington Contracting Office within the National Park Service, overseeing the acquisition of critical infrastructure, environmental remediation, and visitor services contracts. She plays a central role in executing the agency’s mission to preserve natural and cultural resources by managing complex procurements aligned with federal sustainability and accessibility goals. Her portfolio focuses on high-impact projects including ecosystem restoration, water and sewer infrastructure, and facility upgrades across national park units, ensuring compliance with environmental regulations and public safety standards. Welch’s acquisitions are strategically aligned with long-term stewardship objectives, often involving multi-year, performance-based contracting approaches. She maintains consistent working relationships with key contractors including PENNSYLVANIA & SOUTHERN RAILWAY LLC and L1 ENTERPRISES INCORPORATED, both of which deliver specialized services in environmental remediation and institutional construction. Her procurement patterns reflect a preference for established vendors with proven technical capabilities in federal environmental programs, while actively fostering competitive bidding environments. Welch collaborates closely with project managers and environmental specialists to ensure contract scope aligns with on-the-ground operational needs, resulting in high-performance delivery of mission-critical services. Welch demonstrates a strong commitment to socioeconomic contracting, with over half of her acquisitions set aside for small businesses under FAR 19.5. She frequently utilizes Service-Disabled Veteran-Owned Small Business and Indian Small Business Economic Enterprise set-asides, reflecting the Department of the Interior’s unique priorities. Her contracting patterns support broad small business participation, including targeted outreach to Women-Owned Small Businesses and HUBZone firms, reinforcing equitable access to federal opportunities. Her primary procurement focus lies in NAICS 562910 (Remediation Services), with significant activity in water and sewer infrastructure (237110) and commercial building construction (236220). She regularly procures environmental testing, hazardous material abatement, and inland water transport services, demonstrating deep expertise in ecological restoration and park infrastructure modernization. Welch’s technical domain knowledge spans environmental compliance, hazardous waste management, and sustainable construction practices essential to National Park Service operations.