TMDL model comparison matrix TMDL model comparison matrix

TMDL model comparison matrix
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Comparison categories	Water quality model
		P8	MIDS calculator	MPCA Simple Estimator	WinSLAMM
Relative input complexity	High	Medium	Low	High
Public domain	Yes	Yes	Yes	No
TSS modeled	Yes	Yes	Yes	Yes
TP modeled	Yes	Yes	Yes	Yes
Volume reduction modeled	Yes	Yes	Yes	Yes
Model time step	Event/continuous	Annual	Annual	Event
Pollutant Loading Methodology	EMC & Buildup/ Wash-off	Simple method	Simple method	EMC & Buildup/ Wash-off
Pollutant removal methodology	Physically based	Empirical	Empirical	Physically-based / Empirical
Pollutant Removal Mechanisms	Filtration, Sedimentation, Infiltration	Empirically based	Empirically based	Filtration, Sedimentation, Infiltration
Capable of evaluating bypass from undersized BMPs?	Yes	Only for volume-reduction BMPs	No	Yes
Capable of modeling removal from BMPs in series?	Yes	Only for volume-reduction BMPs	No	Yes
GIS compatibility	Low	Low	Low	Medium
Model used for TMDL Development and Modeling	Yes	No	No	Yes
Costs - software	None	None	None	medium
Costs - model development	Medium	Low	Low	High