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a _ <br /> ' Sequence cr-0 Procedures for Site Charail^ Azation of <br /> ' Bioremedial Cftpatibility and In Situ or <br /> -144W Situ Feasibility <br /> Biologic Review of Site Data <br /> and Desired Approach <br /> Sampling Plan and Cost Proposal <br /> Sample Collection Environmental Laboratory <br /> Possibly Field Tests for: Contaminant Levels <br /> ReDox, Dissolved Oxygen, Total Organic Carbon <br /> pH, and Temperature <br /> BioLogic Microbiological <br /> Physicochemical Evaluations <br /> r- = N 00 <br /> Passive Passive Microbial Counts Physicochemistry, <br /> Bioremediation Approach General(Heterotrophic) 4 pH, NPK, Moisture <br /> Assay Selective(Each substrate) Iron Il (in-Situ only) <br /> Correlate Data with <br /> Analytical Results Biostimulation <br /> Determine Prospective <br /> Operational Requirements <br /> Determine Efficacy of Method Identify Limiting Factors/ <br /> System Design Inhibiting Conditions; <br /> Short/Long Term Costs Determine Efficacy of Biostimulation <br /> RBCA/Naturai Attenuation only as necessary,dictated by above results <br /> Low Oxygen Levels <br /> • (Based on Field Results) <br /> Biofeasibility or <br /> Consider Biotreatability if <br /> Other Parameters are Marginal <br /> Technologies Physicochemical <br /> Effects Low Nutrient Levels <br /> Field Implementation Evaluations if <br /> if All Parameters Limiting Factor <br /> are Favorable is Identified <br /> High/Low Ambient pH <br /> Bioprocess Monitoring <br /> Microbial, Physicochemical <br /> Concurrent with Analytical <br /> e.g.,monthly/quarterly/annually Low SiteTemperature <br /> Conditions <br />