This is a $20,610 firm fixed-price contract awarded by the Department of the Interior National Park Service to Davinroy Mechanical Contractor, Inc. for backflow repair and replacement services at the Gateway Arch National Park in St. Louis, Missouri. The contract is a 30-day total small business set-aside under NAICS code 238220 for Plumbing, Heating, and Air-Conditioning Contractors. Davinroy Mechanical Contractor, Inc. is a small business that has performed various construction, maintenance, and repair work for federal agencies like the Departments of Defense and Interior through multiple award contract vehicles. This contract award is part of the National Park Service's efforts to maintain and upgrade infrastructure at its facilities.