Concentrate means the product of a process of extraction of metal or a metallic mineral from mineral ore that results in substantial enrichment of the metal or metallic mineral concerned;
In-stream Waste Concentration or "(IWC)" means the concentration of a discharge in the receiving water after mixing has occurred in the allocated zone of influence.
Concentration means the weight of any given material present in a unit volume of liquid. Unless otherwise indicated in this permit, concentration values shall be expressed in milligrams per liter (mg/l).
concentrates means flavoring ingredients and, depending on the product, sweeteners used to prepare syrups or finished beverages and includes powders for purified water products such as Dasani;
Net concentration means the difference between the concentration of a given substance in a sample taken of the discharge and the concentration of the same substances in a sample taken at the intake which supplies water to the given process. For the purpose of this definition, samples that are taken to determine the net concentration shall always be 24-hour composite samples made up of at least six increments taken at regular intervals throughout the plant day.