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' For the more complex and therefore, more recalcitrant compounds it is very unlikely that any single organism can carry out complete mineralization to carbon dioxide and water The purpose of reintroducing an inocula of organisms is rather to catalyze key stages in the degradation pathway and then for the other naturally-occurring microorganisms to complete the mineralization process Any microbial batches used would undergo in-house quality assurance including checking for efficacy of the degradative capability The selected microbes would be checked for survival and several other parameters such as gram stain, morphology, quality after formulation and purity TreaTek has the experience gained from several lab, pilot and full-scale projects to predetermine ' a general strategy for soil remediation The experience is readily transferable to the site, however, field and lab testing must be carried out as part of the field trial program to verify project feasibility, finalize design plans and predict in advance any on-line changes in treatment strategy required to complete the project 22 Remedial System Design and Construction In order to biologically remediate the onsite sods, TreaTek will construct a biological treatment bed onto which the affected sods will be placed For the Jahant Road site, a section of the available land will be lined with 6 mil plastic sheeting (Figure 2) The edges of the bed shall be bermed to ' provide for additional containment The 600 (cu yds) of soil will be placed on top of this sheeting with a maximum thickness of two feet The maximum two foot thickness of soil is such to allow for proper tilling and oxygenation of the soils A typical cross section drawing of the actual treatment bed is presented on Figure 3 Once the soils have been placed onto the treatment bed, the bed will be covered with black plastic to reduce compound volatilization, maintain moisture content and increase the available heat In conjunction with the placement of the soils onto the treatment bed, samples will be collected for a Biological Treatability Study and for a Hazardous Waste Characterization evaluation in compliance ' with the California Administrative Code, Title 22 requirements Pending favorable results from the sample analytical and treatability study, the remedial process will be initiated i23 Remedial Process and Activities Once the soils have been studied and evaluated, the remedial process will be initiated The required microorganisms for the degradation of the compounds of interest will be cultivated and enumerated within TreaTek's biological treatability laboratory Once a sufficient volume of the ' microorganisms has been achieved, the sods within the treatment bed will be inoculated Upon inoculation, the required nutrients/moisture will also be added and the sods will be tilled to enhance oxygen transfer and to assure the proper distribution of microorganisms within the treatment system After tilling, the bed will again be covered Tilling of the bed will be conducted for a three hour maximum period once per week Twice a week the moisture/nutrient content of the sods will be checked If required, both the moisture and the nutrients will be supplemented during the tilling process The treatment bed will immediately be recovered following tilling activities ' All activities regarding the treatment of the soils, including tilling activities, inoculation, nutrient/moisture supplements, etc , will be documented by TreaTek personnel in a dedicated field log book The log book will be maintained and kept by TreaTek for use in preparing the final remedial report 4