INNOVATION IN wATER, wASTEwATER, AND STORmwATER NETwORkS
sewerage Master plan for delhi
New Delhi, India
rapid population growth in new Delhi, India, resulted in only 55 percent of
the population having access to a centralized sewerage system. To improve
sanitation, protect public health, and enhance river water quality, Delhi Jal
Board retained Aecom to develop a sustainable sewerage master plan for
2031. The project covered 1,500 square kilometers, requiring performance
audits of 30 sewage treatment plants and topographic surveys of 2, 200
Aecom decided to develop a wastewater management information system
with an integrated enterprise GIS to carry out hydraulic modeling. Using
SewerGemS, the data was consolidated into a single hydraulic model, which
was verified for import accuracy. SewerGemS was then used to pinpoint
problem areas. SewerGemS also accelerated design of a 7,500-kilometer
network and its integration with 1,000 to 1,500 kilometers of existing network.
The solution saved Aecom 2. 5 man-days per month.
water system Interconnection, redundancy, and reliability project
Atlanta, georgia, united States
The metropolitan north Georgia Water planning District’s Water System
Interconnection, redundancy, and reliability plan encompasses 33 water
systems in 15 counties, including all of metro Atlanta. Using WaterGemS to
model multiple water systems, cH2m HIll developed recommendations for
capital projects that will enable the district to meet interconnection targets and
maintain water service.
The $1.7 million project involved converting hydraulic models for all 33 water
systems to WaterGemS and then evaluating the hydraulic capacity of system
interconnections. The metro-Atlanta study alone covered 4 million people and
20 water system models. Where existing connections did not provide enough
water, new infrastructure was added to the model, which allowed quick
assessment of alternatives and optimization of solutions.