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Detroit Long Term CSO Control Plan
Wade Trim led a team of consultants, in partnership with DWSD staff,
to develop a plan to address annual discharges of 20 billion gallons of
CSO through 78 outfalls on the Detroit and Rouge Rivers in Michigan. Developed
over a three-year period, the final plan included eight projects
and four different control strategies: source control, in-system storage,
plant expansion and end-of-pipe treatment. Wade Trim is currently
assisting DWSD in implementation of the $1.07 billion plan.
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Detroit CSO Demonstration Basins
Wade Trim led a team of consultants in planning, design and construction
management of three CSO basins, ranging in size from 2.2 to 22 mg. Start-up
operations assistance was provided and basin evaluations conducted.
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Lift Station 1A
Capable of handling influent flows of 8,500 and 117,000 gpm, Wayne County’s
Lift Station 1A uses a pumping sequence designed to limit energy consumption
and extend the pump service life. Wade Trim provided hydraulic analysis, concept, design
and construction engineering services for this lift station that enables full use of
purchase capacity in the Detroit sewer system.
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PWSA Long Term CSO Control Plan
Wade Trim has been retained as part of a team by the Pittsburgh Water and Sewer
Authority (PWSA) to assist in their Long Term Control Plan for Region 2. The project
includes system characterization including inspection and televising,
hydrologic/hydraulic model development and evaluation of applicable CSO control
technologies.
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Downriver Hydraulic Evaluation Study
Wade Trim conducted a hydraulic evaluation for the Downriver
sewer system in Wayne County, Michigan. A computer model was modified to determine flow contributions
for fair distribution of system operating costs. The project was nationally
recognized for engineering achievement.
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Elizabeth Lake Pump Station
Wade Trim provided planning, design and construction oversight services to the Oakland
County Drain Commissioner to completely rehabilitate a 9 cfs dry weather/31 cfs wet
weather regional sanitary pump station in Waterford Township. Improvements were
made to assure reliable operation of the station for the design cycle including
rehabilitation of the process and mechanical systems within the existing facility.
We also designed the electrical system and instrumentation. A computer
simulation was also created to show what building modifications would look
like on the pump station.
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