Indigo Water Group completed collection system
models for the City of Brush and the Meeker Sanitation District.
Brush's model includes every pipe and manhole in the
system - roughly 1,000 individual model components.
System information such as the manhole rim
elevation, pipe diameter and condition, and pump station
operating data was used to estimate hydraulic capacity and find
potential problem areas. The City will use the model
to track asset information such as last cleaned date, pipe
material, and condition notes.
Biological process modeling can be used to:
simulate the performance of a wastewater treatment plant, predict
potential effects of operational changes such as placing unit
processes in and out of service or changing sludge age, or to
evaluate the relative effectiveness of different facility upgrades.
It is a low-cost way to make virtual changes without the risk of
causing a process upset or violating permit limits.
can help identify process bottlenecks because it looks at the
treatment plant as a whole rather than taking each unit process
separately. In modeling, changes to one unit process will
necessarily affect other unit processes, just like a real treatment
Indigo Water Group uses BioWin modeling, State
Point Analysis, and empirical fixed film models to simulate removal
of traditional pollutants and nutrients. We’ve performed
process modeling for a variety of clients including the City of
Northglenn, the Town of Carbondale, and Leprino Foods Company.
We’ve reviewed process models created by other consultants for the
City of Boulder and Colorado Springs Utilities. Depending on your
needs, we can perform simpler steady state modeling or evaluate
dynamic systems with diurnal variations in flow and concentration.
Collection System Modeling
Collection system models allow a municipality
to estimate collection system capacity, locate areas with the
potential to surcharge or clog, and to assess the impact of new
businesses and residences on existing infrastructure. Future
scenarios can be explored based on land use designations and future
interceptors tentatively planned. Once completed, a sewer
model can also be used to track infrastructure age, track operations
and maintenance activities, and to coordinate a planned replacement
program of aging infrastructure. Centralizing this type of
information can help to avoid costly infrastructure failures and
assist municipalities with their budget process.
Water Group is experienced with MWHSoft H2OMap Sewer. Our
staff recently completed collection system models for the Cities of
Thornton and Northglenn. For Thornton, we evaluated four
different future scenarios in addition to building an accurate
representation of the existing collection system. For
Northglenn, we entered every pipe and manhole in the entire system
-- over three thousand of each! Modeling every aspect of the
collection system will allow the City to link their maintenance
database and other GIS information directly to the model.