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AWWA WQTC69365
- Estimating Risk of Infection from Low-Level Intrusion Events
- Conference Proceeding by American Water Works Association, 11/01/2008
- Publisher: AWWA
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This powerpoint presentation begins by presenting study objectives that include the following: develop distribution system intrusionrisk model and use to estimate risk ofinfection; and,if water is intruded through a leakafter a low-pressure event, virusesand other pathogens may beintroduced, and transported to waterconsumers. Experimental approach included: selecting test system;determining which locations havevulnerability to low pressure if powerfailure occurs;determining initial pathogenconcentrations at intrusion nodes;identifying how pathogens introduced atinitial locations will impact entiresystem; calculate total pathogen dosedelivered to model nodes; and, calculate infection risk. Includes 8 references, figures.