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Mr. Harold Dungan, P.E., M.ASCE


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RE: CSOs & Green Infrastructure - Targeting Solutions?

Posted By Harold Dungan 09-12-2018 02:44 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure \ view thread
In most instances, the roof drains connect to the site drainage system which may have a holding pond for runoff control. However, in some cases as in Noblesville, IN, the city had a combined sewer system and was challenged to limit discharge from a new city hall and parking facility during rain events. ...

RE: Cleaning and Relining Pipes vs. Replacement

Posted By Harold Dungan 07-28-2018 02:09 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure \ view thread
In some circumstances, lining is the only practical method to restore the usefulness and life of a cast iron pipe. Cleaning is always necessary followed by the insertion of a reputable lining material. The circumstances could be when a line is in a busy street with multiple utilities in close proximity ...

RE: Pumping Downhill

Posted By Harold Dungan 02-06-2017 06:25 PM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure \ view thread
Just to kid you at first, I thought *@it flows down hill on it's own! Now seriously, the biggest challenge in pumping downhill is when there is a large high spot between the start and end of the force main-how do you deal with all the forces when the velocities get moving on the downhill side? Does a ...