Exhibit_B_-_Phase_1_Environmental_Site_Assessment.pdf

This is a Phase 1 Environmental Site Assessment (ESA) exhibit supporting the San Mateo County Department of Housing's Request for Proposals for the development of 710 Hamilton Street in Redwood City, California. The Phase 1 ESA is a preliminary environmental evaluation of the 20,500 square-foot property, currently improved with a County-operated law library, which the County intends to redevelop into affordable housing with a preference for employees of public agencies within San Mateo County. The assessment serves as a critical due diligence document for prospective developer teams, providing environmental baseline conditions and identifying any potential contamination, hazardous materials, or other environmental concerns that could affect the redevelopment project. This document is essential for qualified proposers to understand the environmental status of the property prior to submitting their development proposals and establishing project timelines and budgeting.

The Phase 1 ESA establishes the environmental baseline for the property and identifies any recognized environmental conditions (RECs), potential RECs, or de minimis conditions that could impact development feasibility, construction costs, and project timeline. This assessment is a standard requirement in affordable housing development projects and provides prospective developers with critical information regarding soil conditions, groundwater, historical uses, and any required remediation or further environmental investigation. The findings from this Phase 1 ESA will inform the selected developer's environmental due diligence, help determine if Phase 2 environmental investigation is necessary, and support the County's risk assessment in selecting a qualified development partner capable of managing any identified environmental issues in conjunction with the ground lease and construction financing requirements.