In your ongoing assessment of the Smithville site, summarized field data gathere
ID: 487427 • Letter: I
Question
In your ongoing assessment of the Smithville site, summarized field data gathered from the site are as detailed below. Approximately 30,000 liters of DNAPL inventory are unaccounted for. The DNAPL comprises 50% polychlorinated biphenyl (PCB), 10% trichlorobenzene CTCB), 2% trichlosoethene (TCE). 507, PCB with the remainder as a mixture of mineral oils. m. NAPL 3000 Liters 10% TCB Field Parameters TCE Hydraulic Hydraulic Overall Fracture Gradient conductivity Porosity Spacing Aquifer (cm/s) (m/m) n (m) Upper Limestone Aquifer 0005 (horiz) 5 x 10 05 15 20 05 Intermediate Aquiclude (shale) .3 8 (vert) 1 x 10 .002 .005 (horiz) 4 x 10 2 x 10 .01 15 .3-.5 Vinemount Aquifer DNAPL Properties H (N.s/m2) (kN/m o (N/m) DNAPL 2.7 x 10-2 (DNAPLUwater (0 30) 96 x 10 3 15.6 Water 7.3 x 10-2 (Water/air (e 30) 1.12 x 10 3 9.8 Assignment Use this information to determine the anticipated extent of the "free" product migration that may have penetrated through the formations present at the site. Remember that there is no single answer so you must state your objectives, assumptions, and the final result. Finally, describe the implications of your analysis if the Upper Limestone Aquifer discharges into a nearby stream, and the Vinemount Aquifer is used for local water supply.Explanation / Answer
Dear Student,
Free product is defined as a hazardous substance that is present as a nonaqueous phase liquid (e.g., liquid not dissolved in water) or is present as a solid in its original form as a product or waste material".