As tap water is used (for cooking, cleaning, bathing, flushing toilets, etc.) in homes and businesses, it becomes contaminated with things like cleaning products, personal care products, food, human waste, etc.  This “used” water is called wastewater, and must be cleaned again.  Concord’s wastewater is pumped by the City of Concord to a wastewater treatment facility managed by the Water and Sewer Authority of Cabarrus County (WSACC).  The wastewater treatment facility removes organic matter and pathogens.  Treated wastewater or effluent is released back into the environment via a sewer outfall located along Rocky River, a major tributary of the Yadkin-Pee Dee River.