AWWA DSS65639

The focus of this powerpoint presentation is on whether current approaches to evaluating water distribution system (DS) risksfrom a regulatory vantage areappropriately balancingwater quality integritywithwater quantity integrity, bothphysical and hydraulic; and,should any of the currentapproaches be modified? A brief regulatory history is provided of the U.S.water/wastewater industry in terms ofcomprehensive legislation and programs, along with the U.S. Environmental Protection Agencys (USEPAs) growing focus on waterdistribution systems and evaluating their risks. The Distribution and Plant Operations Divisions (DPODs) Concept Paper, 2006, is presented.The title is Optimizing Water Distribution SystemHydraulic Operations to Ensure Water QualityProtection, and its purpose is tovoice the DPOD concern about a quality/quantityimbalance in AWWAs approach to the focus on distribution systems (DS), hoping topromote discussion within AWWA. The concept paperproposes to:elevate the focus on physical, hydraulic integrity to match thefocus on water quality integrity; develop a set of standard methods for DS;capacity building; and,collaborative rulemaking. Includes figures.



Keywords: Distribution Systems; Water Quality; Hydraulics; Risks; Federal Regulations