Aggregate Base and Subbase Installation

This contract involves the installation of a gopher guard and geotextile fabric, followed by the placement and compaction of an aggregate base in 2-inch lifts to achieve a total depth between 3 and 4 inches. The work must be performed with attention to proper grading to ensure effective drainage at the site. The project is categorized under the NAICS code 238990 and is designated as a Total Small Business Set-Aside in accordance with FAR 19.5 guidelines. The contract is a subcontract opportunity issued by the Department of Homeland Security through Base Alameda, with the work taking place in San Francisco, ZIP code 94128. The solicitation was posted on June 9, 2026, with a response deadline set for June 23, 2026. This opportunity is specifically aimed at small businesses competing within this sector.