Document: NRC Regulatory Guide
Document ID: c9ebcbb0-96c4-4d29-be51-5acae9cc858a
Document Type: regulatory_guide
Title: Estimating Aquatic Dispersion of Effluents from Accidental and Routine Reactor Releases for the Purpose of Implementing Appendix I (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740390.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.113
CFR Part: 
CFR Title: 

Content:
tified impoundment Ci' Input concentration to the lower layer of a stratified impoundment Ci" Input concentration for the total impoundment C° Steady-state concentration of a nondecaying substance CT Concentration in total impoundment at time of turnover CSS Steady-state concentration of a decaying substance K d Depth of river 0 Diffusion factor DF Dilution factor SE Sectionally averaged, one-dimensional longitudinal dispersion coefficient EL Estuarine, sectionally and tidally averaged, one-dimensional longitudinal disper sion coefficient ED Estuary number (dimensionless coefficient) f Coriolis parameter FD Densimetric Froude number at downstream boundary of estuary g Acceleration of gravity H Depth in estuary or open coast measured from water surface to bottom K Empirical coefficient used in description of mixing in salinity intrusion region of an estuary I Kx, Ky Vertically averaged, two-dimensional turbulent diffusion coefficients in x and y directions, respectively t Distance from point of maximum velocity to further bank in river flow L Length of estuary 1.113-46 LIST OF SYMBOLS (Continued) Symbol Description N Quantity of radioactivity released in a pulse discharge n Manning's coefficient N Dimensionless estuarine freshwater velocity PT Tidal prism q Cumulative river discharge measured from near shore Q Total river discharge Dimensionless cumulative river discharge q b Flow rate of blowdown through the pond Qf Freshwater volumetric discharge rate in estuary qt Inflow to the upper layer of a reservoir qt' Inflow to the lower layer of a reservoir qt"l Inflow to the total reservoir qp PPlant pumping rate qs Cumulative river discharge rate at position of point source is Dimensionless cumulative river discharge rate at position of point source qsl, qs 2 Cumulative river discharges at beginning and end of line source, respectively R Recirculation factor for impoundments Rh Hydraulic radius S Salinity in estuary S 0 Salinity at downstream boundary of estuary t Time