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<br />Sent By: GC ENVIRONMENTAL <br /> <br />RING: <br />'-' <br /> <br />714 632 996B; <br /> <br />Dee-5~ 11 :42; <br /> <br />Page 26/34 <br /> <br />Performed and ffil!Ilaged leaking underground storage tank evaluations at over 50 gasoline <br />stations and tbreetenninals for four major petroleum firms in Southern California. Work <br />included assessmellt of soil and groundwater conditions through drilling. monitoring well <br />installatfun, groundwater sampling and analyses during groundwater monitoring programs, <br />analyses: of data, and report preparation. Work at some sites also included conducting <br />feasibility studies, preparing remedial action plans, agency negotiations, and implementation of <br />soil and ~undwater remediation proecsses. <br /> <br />Soil and Groundwater Investigation, RAP, Remedial DesIgn <br /> <br />Santa Fe Springs, CA <br /> <br />Performed investigation of soil and groundwater contamination, prepared remedial action work <br />plan and NPDES pennit application, and designed and implemented a groundwater <br />remediation system utilizing activated carbon to remedial groundwater contaminated with <br />aromatic and chlorinated solvents. Established a groundwater monitoring and sampling <br />program in response to the NPDES pennit requirements and managed groundwater remediation <br />at the site for 18 months. Operation and maintenance of the system was turned over to the <br />client when concentrations of trichloroethene, tetrachloroethene and benzene in groundwater <br />fell below the corresponding drinking water standards for the compounds. <br /> <br />TernlinaJ Storage Tank Leak Soll Vapor Extraction System <br /> <br />Anaheim, CA <br /> <br />Assessed lateral and vertical extents (If soil contamination, prepared remedial action plan, <br />obtained the ncccssary permits and assisted in design and implementation of a remedial flare <br />system. Soil remediation was completed successfully, and the site was granted closure by the <br />California Regional Water Quality Control Board. Groundwater remediation at the site was <br />conducted by another consultant simultaneously. <br /> <br />Soil and Groundwater Investigation <br /> <br />Los Angeles, CA <br /> <br />Performed investigation of soil and groundwater contamination, through drilling, well <br />installation and routine groundwater monitoring. Conducted a pilot vapor extraction test and a <br />24-houraquifer pumping test to assess the performance and hydraulic characteristics of the <br />vadose zone and the underlying aquifer, and prepared remedial action work plans (RAPs) for <br />soil and ground~ter remediation proposing vapor extraction and pump and treat utilizing <br />activated carbon for air pollution control a~ viable remedial options for the site. <br /> <br />Assessment, Feasibility Study, and Soil Remediation <br /> <br />Long Beach, CA <br /> <br />Assessed the extents of soil and groundwater contamination, initiated a groundwater <br />monitoring progratn at the site, performed remedial feasibility study for contaminated soil <br />clean-up, performed pilot vapor extraction test, and assisted in design of a vapor extraction <br />system using a thermal/catalytic oxidizer. The system is in operation. During the first 6 months <br />of operation, YES removed 8,800 pounds of hydrocarbon from vadose :tone. <br /> <br />Subsurface Investigation <br /> <br />Los Angeles, CA <br /> <br />___-'..__....__.... ,~.__ ..,.~._._. . _ _"..."'D I 'lo ^U, r._...!__.~l C!.......:_.1........ <br />