Using Contaminant Sources
            The Source element A specialized element for introducing mass into a contaminant transport model, and is particularly useful when simulating mass emanating from gradually failing engineered barriers. provides the capability to model a contaminant source such that the effect of the barriers (such as drums or boxes) and/or a waste matrix (e.g., cement) in which the contaminant species The chemical (or non-chemical, such as bacterial or viral) constituents that are stored and transported through an environmental system in a contaminant transport model. In GoldSim, the Species element defines all of the contaminant species being simulated (and their properties). are contained can more accurately represented.
The 
- Associating Cells with a Source
 - Defining a Source: Overview
 - Defining Barrier Failure
 - Defining Source Inventories
 - Defining the Level of Containment
 - Instantaneously Moving Mass from a Source
 - Saving Results for a Source
 - Source Example Models
 - Source Outputs
 - Using Contaminant Sources
 - Viewing a Source in the Browser