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Additional Groundwater Investigation and Remediation Feasibility Evaluation Work Plan <br /> Stockton Center Site Authority-University Park <br /> January 25,2005 <br /> [ Page i l <br /> h <br /> Condor proposes to employ Environmental Bio-Systems, Inc. (EBS) of Mi 11 Valley, Califomiafor the <br /> bench scale testing. Both the SJCEHD and the CRWQCB are familiar with this firm and the firm's <br /> principle manager and technical expert, James A. Jacobs, R.G., C.Hg. A detailed work plan for the bench <br /> ` scale testing is not provided in this work plan: Please refer to the project schedule portion of this work <br /> plan below, for more information regarding the recommended approach. <br /> 7.0 PROJECT SCHEDULE AND REPORTING' <br /> If the SJCEHD and the CRWQCB approve the field work and laboratory analyses described above, in <br /> . particular,and approve of the need for bench scale testing, Condor proposes that the described field work <br /> commence within six weeks (of said approval). Upon approval by .the SJCEHD and CRWQCB .of <br /> conducting the bench scale testing (in principle), Condor will provide a detailed work plan for the bench <br /> scale testing. This process will allow much.of the field investigation to be conducted rapidly. The.results <br /> of the field work .and laboratory testing may allow the scope of work for the bench scale testing to be <br /> 4 refined, or if site conditions observed during the field work or the results of the laboratory analyses <br /> indicate that ozone won't be effective, eliminate the ozone injection portion of the bench scale testing. <br /> Bench scale testing, if it is conducted (following approval of the detailed work plan to be submitted <br /> following the first phase of)field work), is anticipated to last several weeks to fully evaluate and optimize <br /> site conditions. Once the bench scale testing data has been evaluated, a report -describing the well <br /> installations, the laboratory analytical results of chemical and physical parameters, and the bench scale <br /> r results will be prepared for submittal to the SJCEHD and CRWQCB. At a minimum the report will <br /> include: (1) a description of the fieldwork conducted at the site, (2) the results of the laboratory.analysis, <br /> (3) the results of the bench scale tests, and (4) Condor's•recommendations for site remediation. Condor <br /> is can provide a work plan, as an appendix to the report, proposing a specific remediation method and <br /> detailed description of the remediation system. <br /> The provisional phase II remediation/monitoring points (wells) shown in Figure 7 (Appendix A) are, at <br /> _ this point, simply an example of what will likely be proposed in the appendix. (work plan) to the:above <br /> described report. These wells, if installed, will be completed in locations and at depths based on the <br /> results of the work described in this plan. The delivery system for both the ozone and oxygen diffusion, <br /> and potentially other agents, can be the same two-inch diameter wells. The technologies can be moved <br /> around between the wells, as needed. If you need additional information or have any questions,please call <br /> Don Kresse at(209) 234-051$. <br /> Respectfully submitted, [ <br /> F i <br /> CONDOR EARTH TECHNOLOGIES, INC. Ce sem- 0� <br /> No. <br /> ® m <br /> Case Ki CAS\ <br /> Y Donald F.Kresse, R.G., C.Hg., A--- <br /> Staff Geologist Senior Environmental Hydrogeologist <br /> P:13000_pq\3024 CSUS-Multi-Campuss13024CIWorkpianslAdditionalGW]nv&RemedFeasEva3WurkPlan.doc <br /> S <br /> CONDOR <br /> I ' <br />