Utilities are continuously seeking new technologies to minimize the time that distribution infrastructure is out of service. This webinar will discuss a study of the efficacy of adenosine triphosphate analysis, a rapid microbial detection method, as a suitable risk assessment indicator.

Drinking water distribution system infrastructure is periodically taken out of service for repair, replacement, cleaning, or maintenance. The absence of coliform organisms is generally accepted as verification that disinfection has been successful and that the infrastructure can be released for service. Because conventional coliform detection methods take at least 24 hours, utilities are continuously seeking new technologies to minimize the time that the infrastructure is out of service.

Adenosine triphosphate (ATP) analysis, an on-site rapid technique (<10 min) for monitoring viable biomass, has potential for application as an alternative verification method. This webinar will discuss the results of a preliminary study, funded by the AWWA Technical and Education Council, to determine if ATP analysis is a suitable risk assessment tool. The project team collaborated with nine utilities across North America to analyze historical data and conduct a new sampling campaign in conjunction with distribution system maintenance. Utilities were selected to cover a wide range of geographies, temperature ranges, disinfectant residual types, and system sizes. The study will provide utilities with best practices for implementing ATP as an operational tool.

Learning Objectives:

1. Understand the applications of adenostine triphosphate (ATP) for distribution system water quality monitoring
2. Apply ATP measurement to drinking water distribution system water quality monitoring
3. Understand how ATP can be used as a tool to support the assessment of distribution system infastructure release for service
4. Apply ATP measurement to distribution system infastructure release for service assessment

Learn from this webinar's esteemed presenters:

Brad McIlwain; Application Engineer; LuminUltra Technologies

Amina Stoddart, PhD, PE; Assistant Professor; Dalhousie Univeristy

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