Bio-Retention Basin Installation

Contra Costa County is soliciting a subcontract for the installation of a bio-retention basin within creek setbacks to enhance stormwater management. The project involves excavation, placement of specialized soil media, and planting of native vegetation to naturally filter and retain runoff. The work is designated under NAICS code 541620, indicating environmental consulting and related services. The project is specifically located in Lafayette, California, with a zip code of 94549, and the solicitation was posted on June 15, 2026. The contract does not specify a set-aside type or a detailed point of contact, and the primary performance site is tied to the creek corridors in the Lafayette area, requiring adherence to natural drainage patterns and environmental protections. All work must comply with local stormwater regulations and ecological restoration standards to ensure long-term functionality and habitat support.