Water reuse – a water supply option in the Metropolitan Atlanta area?
Feldman Yari, Paula
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This paper summarizes information presented in the Metropolitan North Georgia Water Planning District (District) Water Supply and Water Conservation Plan (Plan) developed by Jordan, Jones & Goulding, Inc. and completed in 2003, in which the feasibility of using highly treated wastewater effluent (reclaimed water) as a water supply option was investigated. Three types of water reuse were considered, including direct potable reuse, indirect potable reuse, and non-potable reuse. The estimated amount of potable water that could be augmented with indirect potable reuse applications ranges from 40 to 120 MGD, or between 4 and 12 percent of the projected 2030 annual average day (AAD) demand. Due to stringent nutrient limits, the cost-effectiveness of indirect potable reuse decreases significantly as the discharge quantity of reclaimed water exceeds 120 MGD into a lake or reservoir. The final Plan recommends including 67 MGD-AAD of indirect potable reuse through reclamation in Lake Lanier as a water supply resource.