Managing Hydrant Flushing


Regular hydrant flushing is essential for maintaining and the water
system and ensuring the safety of residents. Hydrant flushing can
detect pressure issues in the water system; remove sediment build up,
and identifying malfunctioning hydrants. The City of Lake Forest
recognizes the important of hydrant flushing by ensuring there are
flushed every year.

Public Works uses GIS for tracking hydrant flushing as well creating
an end of the year report. Every Spring, the GIS Office copies the
hydrant features and base map to laptop that is used by Public Works to
track which hydrants have been flushed. To update a hydrant, the
employee selects a hydrant and records how long it was flushed and the
date it was flushed. At the end of the year, the laptop is returned to
the GIS Office and they collect the hydrant flushing information The GIS
Office uses the hydrant flushing information to create two reports.
The first reports list each hydrant and how long it was flushed. It
shows notes that employees wrote in the field noting any issues they
noticed with specific hydrants. The second report show the amount of
time spent flushing each size diameter of pipe. The second report is
especially valuable because it allows the City to estimate how much
water used during the hydrant flushing process.

By using GIS the Public Works Department has an efficient to track
hydrants during the flushing program. It as has a great way to create
summary reports of hydrant flushing for the current year.