AWWA ACE71004

AWWA ACE71004 Evolution of Water Treatment Plant Residuals Disposal in Washington, D.C.
Conference Proceeding by American Water Works Association, 11/01/2009

Gamby, Patty

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This powerpoint presentation begins by providing a brief overview of the Washington Aqueduct Service Area. A brief history of the Clean Water Act and the National Pollutant DischargeElimination System (NPDES) permit program (Section 402) is presented, along with water treatment plant residuals production and discharge points in the area, the Washington Aqueduct NPDES permit timeline, decision factors, permit conditions, toxicity study results, and the current status of residuals management. Includes tables.