BASELINE has worked extensively with public agencies engaged in major public works projects. Many of these projects are in cities where historic land uses have caused the presence of contamination in the underlying soil and groundwater, or in areas underlain by artificial fill or naturally-occurring asbestos-containing bedrock. As a result, special precautions are required to ensure the health and safety of the construction workers and the surrounding community, as well as special excavated soil and groundwater management.

BASELINE has provided full-time inspectors to such public works projects to ensure compliance with the requirements of the bid specifications in terms of health and safety, soil management, and CEQA mitigation measures. BASELINE inspectors also collect air samples and conduct noise measurements to ensure compliance with air and noise performance standards, dictated by other agencies or ordinances.