AWWA DSS65639

The focus of this powerpoint presentation is on whether current approaches to evaluating water distribution system (DS) risks from a regulatory vantage are appropriately balancing water quality integrity with water "quantity" integrity, both physical and hydraulic; and, should any of the current approaches be modified? A brief regulatory history is provided of the U.S. water/wastewater industry in terms of comprehensive legislation and programs, along with the U.S. Environmental Protection Agency's (USEPA's) growing focus on water distribution systems and evaluating their risks. The Distribution and Plant Operations Division's (DPOD's) Concept Paper, 2006, is presented. The title is Optimizing Water Distribution System Hydraulic Operations to Ensure Water Quality Protection, and its purpose is to voice the DPOD concern about a "quality/quantity" imbalance in AWWA's approach to the focus on distribution systems (DS), hoping to promote discussion within AWWA. The concept paper proposes to: elevate the focus on physical, hydraulic integrity to match the focus on water quality integrity; develop a set of "standard methods" for DS; capacity building; and, collaborative rulemaking. Includes figures.