Page 14 - 3. References

REFERENCES 3

Eden Prairie, Minnesota
EDEN PRAIRIE WATER DISTRIBUTION SYSTEM

HYDRAULIC MODEL

Specific Objectives
In 2008, Eden Prairie authorized
AE2S to develop a calibrated hydraulic
model of their water distribution system.
The City wanted a tool to analyze overall
system performances and to identify
deficiencies within the existing system
in relation to pressures and fire flow
protection. Operation of water storage
reservoirs was also a key component to
better manage the movement of water
within the system. The system was able to
fill some water storage facilities better than
others, depending on the relative location.

Detailed Model Development
AE2S moved forward with the
development and calibration of the
hydraulic model by obtaining background
information from GIS and paper maps the model. A working digital copy of the fluctuations during the summer months.
of the overall system. Other information calibrated model was provided with the The City of Eden Prairie has come to trust
was collected on pumping and storage report. and rely on the hydraulic model to help in
components to develop a framework making responsible decisions regarding
for the hydraulic model. Fire flow Confident Decisions improvements and operational changes to
tests were performed at 80 locations Eden Prairie has used the the distribution system.
throughout the system over a three day hydraulic model to review water system
period to get a good representation of improvements, such as the sizing of water
the system. Twelve pressure recorders main for a new complex at the Flying
were placed at key locations along large Cloud Airport that needs a certain level DATE
2007
CLIENT
diameter transmission pipelines to gain of fire protection. Available fire flow City of Eden Prairie
a perspective of the hydraulic grade line and pressure information was derived PROJECT COSTS
$48,400
of the system between the WTP and the from the model for each existing hydrant CLIENT CONTACT
Rick Wahlen
storage facilities. SCADA data was also within the distribution system, which Manager of Utility
used to determine hourly system demand was helpful to the fire department and Operations
and to help in calibrating the hydraulic developers of commercial and industrial 952-294-5908
model for EPS calibration. Customer properties. The hydraulic model was KEY PROJECT ELEMENTS
meter records were geocoded and used to used to analyze system operations under • Development of All-Pipes Model
allocate demand throughout the system Extended Period Simulations conditions • Fire Flow Testing
to provide an accurate representation to determine the most efficient way to • EPS Data Collection
of system demand then. A calibration operate storage levels within the system. • Geocode Meters and Demand Allocation
report was completed to document the The hydraulic model will be used in the • Fire Flow Test Calibration
• EPS Test Calibration
results of the calibration, as well as provide near future to determine the location of • Water Storage Location
background information used to set up new water storage and pumping facility
to help manage large water demand

AE2S BURNSVILLE TECHNICAL SPECIALTY CONSULTANT ENGINEERING SERVICES SOQ 3.14