The Object Of The Contract Is The Reactivation, Replacement And Installation Of Granular Activated Carbon Necessary In Order To Return Part Of Its Capacities And Thus Increase Its Useful Life As An Adsorbent Material In Relation To The Concentration Of Heavy Metals, Organics, New Pollutants, Pfas And Pesticides And Herbicides, As Well As The Improvement Of The Turbidity, Color And Taste Of The Water. The Reactivation Of The Cag Consists Of Removing The Pollutants Attached To The Cag And Recovering Part Of Its Adsorption Capacity. In This Process There Is Always A Small Loss Of Material Of Between 5 And 15 Percent. Therefore, Part Of The Replacement Of The Lost Material Will Be Included In The Reactivation Plan, 10%, 80 M3/Year Of Cag New Or Virgin.