Hazardous Waste Management for Construction in the San Francisco Bay Area

To prepare for construction of a Lowe’s retail store in South San Francisco, previous improvements at the site were removed, and preliminary grading and trenching occurred. Analyses of soil samples from borings at the site revealed petroleum hydrocarbon impact and concentrations of California Code of Regulations CAM-17 heavy metals (antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, molybdenum, nickel, selenium, silver, thallium, vanadium, zinc). We provided a health and safety plan addendum for the site that focused on exposure to heavy metals and conducted on-site air monitoring as part of plan implementation. In another case, we worked with a primary contractor to provided characterization of soils handled during a seismic upgrade to the Bay Area Rapid Transportation system. We coordinated with the stakeholders to pre-profile soils in place as an alternative to the original plan that called for off haul and disposal. Our pre-profiling sample plan resulted in on-site reuse for all soils, providing significant time and cost savings to the client.