We have been asked by a client to start gathering information on methods of storing sanitary sewage on-site in case of an emergency. They have asked for the ability to store up to 7 days worth of sewage.
As an initial estimate we have gathered water usages records for 2 years and their...
TR-55 states that "Average flow velocity is usually determined for bank full elevation."
Would this be considered the most conservative approach to calculate a sub-basin's Tc when using the rational method & IDF curves to determine a peak flow rate from a basin for a culvert design?
Or would...
