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Maintaining Disinfection and 1.0-Log Giardia Inactivation at Surface Water Filtration Plants

4.5

Drinking Water

PA DEP: Training Section

Jill Anderson

jianderson@pa.gov

7177724049 Ext.

Partner Website

Maintaining Disinfection for Giardia log inactivation at surface water treatment plants is critical for public health protection. Understanding how to achieve and calculate log inactivation is essential for operators in order to prevent violations of the treatment technique. The purpose of this course is to review the importance of maintaining adequate disinfection, to review the applicable regulatory citations and the ramifications of not maintaining the minimum level of disinfection and inactivation, to review factors affecting the calculation and mistakes to avoid, to review how to calculate log inactivation, and to review data management and reporting requirements.

Basic thru Intermediate

Part 1: Disinfection and inactivation requirements in Chapter 109 Part 2: Factors to consider to accurately calculate log inactivation Part 3: Calculating log inactivation and using the spreadsheet Part 4: Data management

Operators at surface water filtration plants who are responsible for calculating and reporting log inactivation and for monitoring and maintaining all factors that affect the calculation.

Classroom