Date:8/4/2015
Title:Webcast: Legacy of Manganese Accumulation in Water Systems
Description:
Manganese control is one of the most common treatment objectives for drinking water utilities even though it is frequently thought of as strictly a source water issue. Yet “legacy manganese,” that is the manganese that has accumulated in distribution systems, can cause a number of problems for utilities. With the EPA’s renewed interest in manganese as evidence​d by its inclusion in the draft candidate contaminant list 4 (CCL4), it is now even more important that utilities understand the cost and implications of the accumulation of legacy manganese in their distribution systems. 

This Webcast summarizes the findings of project #4314, Legacy of Manganese Accumulation in Water Systems: Assessment, Consequence, And Prevention. The Webcast will address practical questions related to legacy manganese, including: 

1. What is legacy manganese? 
2. How, where, and why does legacy manganese occur in distribution systems? 
3. What are the costs and operational impacts of legacy manganese? 
4. How can legacy manganese influence the public’s confidence in a utility? 
5. How can a utility assess its risk for legacy manganese? 
6. What best practices can utilities institute to limit the impacts of legacy manganese? 
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Long Description:
Presenters:
Phil Brandhuber, PhD, HDR Engineering, Inc. and Melinda Friedman, PE, Confluence Engineering Group, LLC

Moderator:
Maureen Hodgins, Research Manager, Water Research Foundation

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