Meet JC JC is a drop of water from the Chattahoochee River. It was withdrawn and cleaned at a drinking water treatment plant and then pumped to homes and businesses. From there JC was used for many different purposes like washing your clothes, cleaning you in a shower, or refreshing your thirst. JC was then sent down your pipes and through the sewer collection system to the Johns Creek Environmental Campus (JCEC) facility for cleaning and treatment. Along its journey, JC has gotten quite dirty with many different contaminants. The JCEC will clean all of these from JC and make it clean again to be able to be reused for irrigation or to be discharged back to the Chattahoochee where it can be used again downstream. As you travel the JCEC, you will observe how each of the following contaminants are removed in each of the different steps of treatment. Joh ns C r e e k E nv i r onme nt al C amp u s I’m ready to start my Trash JOURNEY to be Cleaned! Larger pieces of trash, including pieces of plastic, small bits of wood, and cigarette butts, find their way into the collection system. Grit Grit is primarily small particles of heavy sand, gravel and rocks that enter the sewer system through inflow and infiltration. Pathogens Oxygen Pathogens from human waste include bacteria and viruses that can be harmful and spread disease. The dissolved oxygen level of incoming wastewater is depressed and must be raised to allow oxygen-rich water to return to the river. Nutrients Scum Incoming waste has high levels of phosphorus, nitrogen and ammonia associated with human, industrial and food waste disposed of through garbage disposals. Scum includes floating fats, oil and grease that are dumped down the sink. Inorganic Solids Turbidity Fine Debris A portion of the incoming solids is inorganic and is not able to be treated biologically. Turbidity is the clarity of the water and dissolved and suspended material that has collected in the wastewater giving the water a cloudy appearance. Fine debris includes very small pieces of hair, plastic, wood, cloth or other material that have broken off larger trash and debris during the collection process.