open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello everyone,
I am new to TELEMAC-2D and would like to model pollutant dispersion in a lake fed by several tributaries. Here's an overview of my project:
-I have a DEM of the area (38 m resolution from global mapper).
-The tributaries are the main sources of pollution (with known flow rates).
My goal is to study the dispersion of a liquid pollutant in the lake and track its concentration over time.
I have set up the .geo and .cli files for hydrodynamics, but I am unsure how to incorporate pollutant-related aspects (tracers):
-How do I configure the CAS file to enable pollutant dispersion?
-How do I define pollutant sources (point or distributed)?
Are there any examples or tutorials for this type of simulation?
I tried to open this file I found on the TELEMAC website (Christophe Coulet (Sogreah) - Management of dedicated version of Telemac-2D for dispersion of pollutant on the Seine-Normandy coast), but the link appears to be broken it requires a permission
Thank you in advance for your help!
Best regards,