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Environmental ■ Facilities ■ Geotechnical ■ Materials <br />CHARLES H. YOON CAC <br />EDUCATION <br />, <br />•Bachelor of Science, Management <br />PROJECT STAFF <br />Information Systems, 2003, California <br />State University, Long Beach <br />Mr. Yoon has over twelve years of professional experience <br />cE noNs <br />acticai <br />In the environmental consulting field. This experience <br />• Pramctic Guide to Vapor Intrusion <br />(Hartman Environmental) <br />Includes providing consulting services to a variety of <br />• Active Soil Gas Investigations (Test <br />Industrial, petroleum clients and private enterprises. Areas of <br />America) <br />specialization have included hazardous materials surveys, <br />i 'Certfiad Asbestos Consultant <br />environmental site assessment, investigations and <br />(CA cac) <br />• Certified Lead Sampling Technician <br />remediation. <br />(CDPH ST) <br />• AHERA Asbestos Abatement Building <br />PROJECT EXPERIENCE <br />Inspector and Contractor Supervisor <br />• 40 -Hour OSHA HAZWOPER <br />Certification (29 CFR, 1910.120), <br />SEARS HOLDING MANAGEMENT CORPORATION <br />-8 -Hour OSHA HAZWOPER <br />PORTFOLIO LSIs I SOUTHERN CA <br />Supervlscr's Certification <br />ed and performed hazardous materials surveys, <br />• first Aid CPR CertificationMarta <br />Arco API 1646 Work Safe Training <br />Limited Site Investigations (LSI) and Supplemental Site <br />safety Key <br />Investigations (SSI) for numerous Sears sites in Southern <br />• Refinery Safety Overview certification <br />California. Performed LSis required when a Recognized <br />(RSO Training), Paramount Refinery, <br />Environmental Condition (REC) Is found during the Phase I <br />ConocoPhllllps Los Angeles Terminal <br />and Colton Terminal) <br />ESA process. Perform numerous soil/vapor/groundwater <br />• PGBE(compressor Station) Safety <br />sampling at the site including elevator pits to screen for <br />Training <br />contaminations. The field work activities included: soil, <br />YEARS WITH TERRACON: 7 <br />groundwater and soil vapor sampling utilizing geoprobe and <br />hollow stem drill rigs. Performed soil gas investigation in <br />YEARS WITH OTHERS: 6 <br />general accordance with California Environmental Protection <br />..___._____-----_----.- --•-----.--- <br />Agency, Department of Toxic Substances Control (DTSC). <br />MIXED-USE HIGH-RISE BUILDING INVESTIGATION I WEST HOLLYWOOD, CALIFORNIA <br />Conducted comprehensive hazardous materials survey and site investigation and assisted the <br />client through enrolling and interacting With the DTSC regarding chlorinated solvent and heavy <br />metal -impacted soil and groundwater. Provided construction management oversight to manage <br />Impacted soils and assisted the client in waste disposition, permitting and regulatory compliance <br />Interaction. <br />SITE INVESTIGATION I FORMER DRY CLEANER FACILITY, DTSC, FREMONT, CA <br />Conducted extensive site Investigation activities to evaluate the magnitude and extent of <br />chlorinated solvents Identified in the vicinity of a former dry cleaner facility, including an <br />evaluation of groundwater, soil, soil -gas and Indoor vapors as a result of a chlorinated solvent <br />plume. Provided interaction with client and DTSC representatives to manage the closure <br />process, including the preparation of work plans and environmental Investigation reports. <br />it City of Santa Ana Public Works Agency- Various Environmental Services (RFP No. 18-043) <br />A2- Hazardous Materials Surveys <br />25F-294 <br />