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BlaeS Environmental Management Inc U-Haul#709-50 <br /> 002-70950-03 Work Plan <br /> 11/8/01 <br /> the AS pilot test will be submitted to a licensed laboratory and analyzed for TPHg using EPA Method <br /> 801513, TPHd using EPA Method 8015 modified, BTEX and fuel oxygenate compounds using EPA <br />' Yg P g <br /> Method 8260B <br /> In addition, two groundwater samples will be collected from peripheral wells for biofeasibility analysis <br /> The two samples will be collected from one monitor well screened from 70 to 100 feet bgs and another <br /> monitor well screened from approximately 50 to 70 feet bgs These two groundwater samples will be <br /> analyzed for the following bio-feasibility constituents total petroleum hydrocarbons, total hydrocarbon <br /> degraders, nutrients, dissolved methane,and dissolved iron <br /> 434 Soil Bio-feasibility Test <br /> A Level I bioassay will be performed on selected soil samples collected dunng the drilling program The <br /> Level I bio-assay indicates whether or not site conditions are generally toxic to indigenous bacteria and if <br /> enhanced bio-remediation is a technically feasible and cost-effective method to remediate residual long- <br /> chain hydrocarbons not effected by VE The Level I bio-assay feasibility test typically includes the <br /> following soil parameters <br /> • Total Heterotrophic Bacteria Enumeration <br /> 9 Microbial Toxicity Assays <br /> • pH <br /> • Orthophosphate Phosphorus <br /> • Contaminant-degrading Bacteria Enumeration <br /> • Ammonia and Nitrogen concentrations <br /> • Buffering Capacity Analysis <br /> • Target Organics Characterization <br /> • TPH and BTEX Concentrations <br /> 4 4 GROUNDWATER PUMP TEST <br /> As part of the remedial testing, Blaes Environmental will also conduct two groundwater pump tests on <br /> separately screened saturated horizons at the site The groundwater pump tests will provide data needed <br /> to evaluate the feasibility of extracting water from the site A remedial option for treatment of <br /> groundwater at depths from 60 to 100 feet bgs may include pumping and treating groundwater <br /> The pump tests will be performed on one well with casing screened at approximately 60 to 90 feet bgs <br /> and another casing screened at 75 to 100 feet bgs Each of the tests will run continuously for <br /> approximately six hours A data logger will be installed in the extraction well to monitor groundwater <br /> 19 <br />