Loading...
HomeMy WebLinkAboutNC0001422_Table 6-1 Input Parameters and values for Convective-Dispersive Flow Equation_20160201TABLE 6-1 INPUT PARAMETERS AND VALUES FOR CONVECTIVE -DISPERSIVE FLOW EQUATION BASED UPON L.V. SUTTON DATA L.V. SUTTON ENERGY COMPLEX DUKE ENERGY PROGRESS, LLC, WILMINGTON, NC Parameter Nomenclature Value Source of Value Began Sluicing Ash - 1971 CSA Ceased Sluicing - 2013 CSA Duration of Source t° 43 years Calculated Term Source 3950 boron; Mean values from CSA, Concentration (Ng/L) cO 328 arsenic Table 7-7 Background Ci 95 boron; CAP Part 1, Table 2-8 Concentration (Ng/L) 6.8 arsenic Hydraulic Geomean of lower and Conductivity k 23,800 upper surficial (ft/yr) conductivities CAP Part 1, Table 3-2* Average of gradients Hydraulic Gradient i 0.00033 unaffected by basin mound CAP Part 1, Table 3-3 Effective Porosity ne 0.3 Average typical value Seepage Velocity v,=ki/ne 26 Calculated (ft/yr) Dispersivity (ft) a 20 0.01*2000 Dispersion (ft2/yr) D = av, 520 Calculated Distribution 0, 1, 2 for Falta et al. used 0 for Coefficient (mL/g) Kd boron and 9 Boron; 1 and 2 were added for arsenic for comparison only Time from To capture the length of Introduction of t Varies plume Constituent (yrs) Distance from Ash Basin Boundary to x 250/5280** Measured Cooling Pond (ft) Calculated c(x,t) As shown Calculated Concentration (Ng/L) Prepared By: KDB Checked By: DGN *Constituent movement is primarily in the surficial unit. **The model considered discharge to the west toward the cooling pond (250 feet) as well as to the west toward the Cape Fear River floodplain (approximately 5280 feet or 1 mile) P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\20.EG_CAP\CAP Part 2\Tables\Table 6- 1 Input Parameters and values for Convective -Dispersive Flow Equation.docx Page 1 of 1