Appendix A

Complete List of Source-Term Module Input Parameter

The following tables list the computer code variable names for input parameters for the source-term module. They also show the relationship of those variables to the variables presented in the main body of the report. Note that there is not a direct one-to-one mapping of code variable names to variables presented in the report. For example, one computer code variable may represent one of a number of similar report equation variables, depending on which type of contamination scenario is being simulated. Furthermore, sometimes a computer code variable is input with a certain (more commonly available) set of units, and then the code converts the value to the set of units used in the report equations.
Table A.1. Site Constant Parameters

Name	Units	Description	Notation
SFDBULKD	g cm-3	Dry bulk density of surface soil	ßs
STAREA	cm2	Area ofthe waste site	A
STAVAILW	cm	Water-holding capacity of waste zone	wWHC
STAVTEMP	oC	Average air temperature at the waste site	T24
STAVWINDV	m s-1	Mean annual wind speed
STCFACTR	--	Vegetative cover factor	fv
STCLOUD	fraction	Fraction of sky with cloud cover	csky
STCORRSC	--	Non-erodible area correction factor	fne
STCRUST	fraction	Fraction of surface area covered with a crust layer	fcr
STDELTA_T	yr	Length of time step	Dt
STELEV	m	Elevation of waste site	h1
STKFACTR	English Units(a)	Soil erodibility factor	Kfact
STLAT	degrees	Latitude of waste site	--
STLCDELEV	m	Elevation of Local Climatalogical Data (LCD) Station	h0
STLENGTH	cm	Length of site down erodible slope	Lslope
STLOCSUR	m	Surface roughness length	Lr
STMAXTIME	yr	Length of run	--
STMAXWIND	m s-1	Maximum wind speed at site	Umax
STMINWST	--	The minimum waste fraction for which analysis performed	--
STMNUMPRE	--	Number of monthly precipitation events	npj
STMOISTC	fraction	The volumetric moisture content fraction of the source zone	qw
STMPRECIP	cm	Monthly precipitation amount measured at LCD	dpruj
STNUMDIS	month-1	Frequency of mechanical disturbances to site	fd
STNUMPRCP	yr-1	Numberof days with 0.254mm precipitation	np
STOVLFLX	fraction	Overland flux for a ponded case as fraction of total water volume.
STPEI	--	Thornthwaite's Precipitation-Evaporation Index	fPE
STPFACTR	--	Erosion control practice factor	Pfact
STPRECIP	cm	2-yr, 6-hr, precipitation event	P2,6
STRHMAX	%	Maximum monthly relative humidity
STRHMIN	%	Minimum monthly relative humidity
STROADS	--	Flag to designate type of road travel	Control
STRTDIST	km	Distance traveled over contaminated surface	Lroad
STRTNUM	day-1	Average number of vehicles traveling over surface daily	nv
STSAND	%	Percent sand in surface soil	Psand
STSCSCN	--	SCS curveumber	nscs
STSILT	%	Percentof silt on road surface	Psilt
STSLOPE	%	Slope of waste site	Sslope
STSSOL	g cm-3	Concentration of suspended solids in surface impoundment	ßss
STSTORMI	--	Storm type index for location of waste site	--
STTEMP	oC	Temperature measured at LCD	T24
STTHICK	cm	Thicknessof the waste zone	h, Lx, dp
STVEGFR	fraction	Fraction of surface area covered with vegetation	fv
STVSPEED	km hr-1	Mean vehicle speed at site	vveh
STVWEIGH	Mg	Mean vehicle weight	Mveh
STWHEELS	--	Mean number of wheels per vehicle	nw
STWINDHT	m	Height above ground of local wind measurements	hin
STWINDV	m s-1	Mean monthly wind speed at LCD	Ud2
WZDBULKD	g cm-3	Dry bulk density of waste zone	ßs

Table A.2. Site Series Parameters

Name	Units	Description	Notation
STAIRSPC	fraction	The volumetric air content fraction of the source zone	qa
STAIRSPC_TIM	yr	Times for air space-time pairs	t
STAIRSPC_NUM	--	This is the number of different airspace percentages	Counter
STCLEAN	cm	The initial thickness of the clean layer	zt
STCLEAN_TIM	yr	Times for cover thickness-time pairs	t
STCLEAN_NUM	--	This is the number of different clean layer thicknesses	Counter
STDARCY	cm yr-1	Darcy infiltration rate	center>qw
STDARCY_TIM	yr	Times for infiltration-time pairs	t
STDARCY_NUM	--	This is the number of different infiltration rates	Counter
STTOTPOR	fraction	The total porosity fraction of the source zone	qt
STTOTPOR_TIME	yr	Times for porosity-time pairs	t
STTOTPOR_NUM	--	This is the number of different total porosity percentages	Counter
STWATR	cm yr-1	Water erosion rate	E
STWATR_TIM	yr	Times for water erosion-time pairs	t
STWATR_NUM	--	This is the number of different water erosion rates	Counter
STWIND	cm yr-1	Wind erosion rate	S
STWIND_TIM	yr	Times for wind erosion-time pairs	t
STWIND_NUM	--	This is the number of different wind erosion rates	Counter

 
 
 
Table A.3. Contaminant Constant Parameters

Name	Units	Description	Notation
CLDIFCO	cm2 yr-1	Grout Diffusion Coefficient for each contaminant	Dg
CLHLC		Henry's Law Constant for each contaminant	H
CLKOW	mL g-1	Octanol-water partitioning coefficient for each contaminant	Kow
CLKTYPE	--	Contaminant type for each contaminant	Database  Param
CLLAMBDA	yr-1	Decay/degradation constant for each contaminant	l
CLSPECACT	Ci g-1	Specific activity for each contaminant	Database  Param
CLVAP	mm Hg	Vapor Pressure for each contaminant
CLWM	g mol-1	Molecular weight for each contaminant	Mm
FSCASID	--	CAS ID for each contaminant	Database  Param
NDS	--	Number of daughter products for each contaminant	Database  Param
NUMALLCON	--	Number of all contaminants (parents plus progeny)	nc
NUMCON	--	Number of contaminants (parents only)	nc
STINVEN	g	Inventory quantity for each contaminant	Mio
STORGCON	g cm-3	Concentration of organic contaminants in the organic phase	Co
STSOL	g mL-1	Aqueous solubility for each contaminant
STVOLRAT	fraction	Volatilization ratio used for control of volatilization	--

 
 
 
Table A.4. Contaminant Series Parameters

Name	Units	Description	Notation
STKD	mL g-1	Kd for each contaminant	Kd
STKD_TIM	yr	Time for Kd-time series	t
STKD_NUM	--	Number of different Kd values used	Counter

 
 
 
Table A.5. Waste Form Series Parameters

Name	Units	Description	Notation
STGLASS	yr-1	Glass dissolution rate	rg
STGLASS_TIM	yr	Times for dissolution-time series	t
STGLASS_NUM	--	This is the number of different glass dissolution rates	Counter
STSURFVOL	cm-1	Surface to volume ratio of the grout monolith	Asg/Vg
STSURFVOL_TIM	yr	Times for surface/volume-time series	t
STSURFVOL_NUM	--	This is the number of different monolith surface to volume ratios	Counter

 
 
 
Table A.6. Pathway Series Parameters

Name	Units	Description	Notation
STLEACH	g yr-1	Known leaching flux rates
STLEACH_TIM	yr	Times for flux-time leaching series	t
STLEACH_NUM	--	Number of known leach loss flux rates	Counter
STOVL	g yr-1	Known overland flux rates
STOVL_TIM	yr	Times for flux-time overland series	t
STOVL_NUM	--	Number of known overland flux rates	Counter
STSUSP	g yr-1	Known wind suspension flux rates
STSUSP_TIM	yr	Times for flux-time suspension series	t
STSUSP_NUM	--	Number of known suspension flux rates	Counter
STVOLAT	g yr-1	Known volatilization flux rates
STVOLAT_TIM	yr	Times for flux-time volatilization series	t
STVOLAT_NUM	--	Number of different volatilization rates	Counter
STSOURCE	g yr-1	Known flux rates for a source to the waste zone
STSOURCE_TIM	yr	Times for flux-time source series	t
STSOURCE_NUM	--	Number of different flux rates for a source to the waste zone	Counter

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^(a) English ton acre^-1 yr^-1 per unit R_fact in English units