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11/01/12 Maintaining Water Quality (St Charles, IL) IEPA#5267
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11/01/12 Maintaining Water Quality (St Charles, IL) IEPA#5267

When: Thursday, November 1, 2012
Registration begins at 7:30 AM
Where: Illinois Section AWWA (University of Illinois Extension Office)
535 South Randall Road
St Charles, Illinois  60174
United States
Contact: Lisa Hoffhines

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Maintaining Water Quality in the Distribution System


SUMMARY:  Many water distributions systems constantly struggle to balance demand with water quality. Oversized piping for fire protection, coupled with reducing demand from users have resulted in insufficient demands to maintain minimum disinfectant residuals. Failure to maintain a minimum disinfectant residual in water lines, in addition to being a violation of State and Federal standards, also contributes to the conditions that favor growth of biofilms with in distribution lines. Long-term exposure to low disinfectant residual conditions within a water pipeline not only favors the potential for biofilm growth, it increases the demand for disinfectant dosing and makes it more difficult for operators to maintain desired minimum disinfectant residual levels. A preventative maintenance and control plan requires full understanding of hydraulics to simulate or predict water age, disinfection methods, growth of disinfectant by-products and impacts of water storage. This seminar will address common cases of water quality degradation in a distribution system and suggest tools and processes for optimizing flow and water consumption. Topics include disinfection methods, hydraulic modeling, tank turn over strategies, uni-directional flushing and continuous automated flushing. Panel will facilitate open discussion with class and use real life strategies, including research from the Water Research Foundation that participants can take back with them and utilize in their own systems.


8:00 - 8:30am
Introduction of Presenters | House Keeping | History of Disinfection& Distribution Systems
8:30 -9:00am
Disinfectant residuals, treatment methods, DBPs, automated &manual flushing
9:00 - 9:50am
Predicting Water Age & Water System Quality using HydraulicModeling
9:50 - 10:00am
Break; Question and Answer
10:00 - 10:30am
Uni-directional Flushing, Valve Exercising, Atlas, HydrantMaintenance
10:30 - 10:50am
Video on Uni-directional flushing
10:50 - 11:45am
Tank Maintenance, Tank Mixing, Corrosion Control
11:45 - 12:00pm
Question & Answer | Open Forum | Local Case Studies


Michelle Hoepner, Midwest Water Group, Inc.
Randy Lusk, M.E. Simpson Company
Tim Scholz, Strand Associates
Brad Schotanus, Dixon Engineering

Registration begins at 7:30am. The training will start at 8:00am and will conclude by 12:00pm. Earn up to 4 PDH’s or RTC hours. Continental Breakfast included

COST: $35.00 Illinois Section AWWA Members (onsite $55.00); $45.00 Nonmembers (onsite $65.00)

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