INNOVATION IN WATER, WASTEWATER, AND STORMWATER NETWORKS
Farnsworth Group, Inc.
St. Louis and St. Charles EPS Calibration
Located at the confluence of the Mississippi and Missouri rivers, St. Louis
and St. Charles counties experience daily water demands of up to 390 million
gallons per day. As part of a CPS study to identify capital improvement
projects for the next 20 years, Farnsworth Group built a hydraulic model using
WaterGEMS. The EPS model provided geographic spatial-demand allocation
based on more than 360,000 real-time billing accounts as well as SCADA
extraction and verification of field operations data.
Three criteria guided EPS calibration for four current-demand scenarios: flow
and pressure at four water treatment plants, tank-level trending at 32 storage
tanks, and pressure trending at more than 50 pressure transmitters. The
advanced features of WaterGEMS in conjunction with in-house tools saved an
estimated 50 percent in labor hours to construct the model, having created the
demand alternatives in fewer than 20 hours per alternative.
GeoAdvice Engineering Inc.
Hydraulic and Criticality Conditions–City of Saskatoon
As a contractor for the city of Saskatoon in Saskatchewan, Canada, GeoAdvice
Engineering used a water distribution system model built in WaterCAD to
classify water mains based on their hydraulic and vulnerability performances.
Running hydraulic simulations determined the condition of each of more than
30,000 pipes in the water supply and distribution system.
A criticality analysis was then performed through an automated simulation
process, in which each segment of the network was taken out of service.
Factors such as system demand deficit caused by each outage determined the
criticality of that segment. This project allows the city to make decisions about
which pipes are to be replaced to maximize the lifetime of each pipe.