Residential Redevelopment - Former Unocal Hartley Research Center

Waterstone was tasked with the evaluation of a 120-acre facility in operation in Brea since the 1950s to identify areas of soil impact requiring remediation in preparation for residential redevelopment; development of remedial workplans; site-wide investigation of soil; soil remediation by excavation, offsite disposal and deep onsite burial. All work was conducted under the regulatory oversight of the Orange County Health Care Agency and Santa Ana Regional Water Quality Control Board.