If the City of Atlanta were to lose access to clean, safe drinking water, modest estimates project the cost to the local business community would be at least $100 million a day. Nearly 1.2 million customers, including 200,000 passengers who pass through the world’s busiest passenger each day, count on the City of Atlanta Department of Watershed Management each time they turn on the tap. The Department of Watershed Management’s service area includes the City limits, unincorporated areas of south Fulton County, College Park, Hapeville, East Point, Sandy Springs and Chattahoochee Hills, as well as wholesale customers in Clayton, DeKalb and Fulton counties.