Wes Crile Park, 1537 Norbert Ter, Deltona, FL 32738, US

The City started a water quality improvement program throughout Sanford's water distribution system in 2004. A water distribution system hydraulic model was completed and the areas to be improved are already under a working plan. Our goal is to improve the water quality delivered to city customers while increasing fire protection with a hydrant maintenance program. The City has hired an expert flushing team to develop a unidirectional flushing (UDF) program. This program will encompass all areas of the City's water distribution system. The flushing program will affect only those subdivisions and areas that are on public water. Private water systems will not be flushed as a part of this program. UDF involves a system-wide set of design sequences to open and close valves and hydrants to flush the distribution system from the clean water source outward. Normal flushing practices typically do not achieve the velocity required to remove pipe deposits. Distinct from normal flushing, the objective of the UDF program is to design flushing sequences to achieve high velocities in the target pipe (s) to properly scour and remove deposits from the distribution system. A total of 144 UDF zones are scheduled to be flushed. Note that the UDF method of flushing involved moving fresh water into high water age areas. This method is an enhanced approach to management of flushing activities, which it is a requirement from the Florida Department of Environmental Protection, as it will minimize "reactive flushing" requested by customers.