Environmental Site Assessment and Soil Testing

The contract pertains to environmental soil testing at a site in Antioch, California, with the objective of identifying contaminants including organochlorine pesticides, arsenic, polycyclic aromatic hydrocarbons, and total petroleum hydrocarbons. The work involves collecting and analyzing soil samples to determine the extent and concentration of these pollutants, following standardized protocols aligned with California Department of Toxic Substances Control and California Environmental Quality Act guidelines. The findings will inform the preparation of a Preliminary Endangerment Assessment, which evaluates potential risks to human health and the environment based on the detected contaminant levels and exposure pathways. The effort is structured as a subcontract under the NAICS code 541620, indicating environmental consulting services, and is managed by the City of Antioch. All work must be performed at the designated location with the zip code 94531, and the project timeline is indicated by the posted date of May 27, 2026, suggesting the contract is expected to be executed in the near future. The assessment must meet regulatory standards required for environmental compliance and land use planning in California, ensuring that any identified contamination is properly characterized to support further remediation decisions or land development activities.