Supply of Rock and Aggregate Materials

The contract involves the supply of quarried rock and aggregate materials specifically engineered for constructing erosion control structures within a riparian environment, ensuring environmental compatibility and structural resilience along waterways. The materials must meet engineering and ecological standards to withstand water flow, prevent shoreline degradation, and support native habitat stabilization in the designated project area near St. Helena, California. This subcontract is issued under NAICS code 214122, which categorizes it within the quarrying and aggregate processing sector, and is coordinated through the Fish and Wildlife, Region 3 - Bay Delta office in Fairfield, California, indicating its alignment with conservation and natural resource management objectives. The work is scheduled to begin on July 6, 2026, with performance centered on the St. Helena location, where precise material specifications and delivery logistics will be critical to the success of coastal and riparian protection efforts. Although no set-aside provisions or subcontractor eligibility criteria are specified, the emphasis on environmental suitability implies that sourcing, processing, and placement of materials must adhere to strict ecological guidelines to minimize disruption to sensitive aquatic and terrestrial ecosystems. All materials will be evaluated for size, durability, and compositional consistency to ensure they meet the structural demands of erosion mitigation while preserving the natural function of the riparian zone.