Chelsea Wastewater Treatment Expansion

The Chelsea Wastewater Treatment Expansion project consisted of engineering services for Washtenaw County during the $12 million expansion of the Chelsea Wastewater Treatment Plant to 1.8 MGD. Improvements consisted of a new oxidation ditch, clarifiers, headworks and raw sewage pumping, ultraviolet disinfection, and sludge handling. Additional, a plant-wide SCADA system was commissioned to enhance monitoring and assist with NPDES reporting.

Scope of Work

  • Raw sewage pumping.
  • Fine screen and grit removal.
  • Selector tank.
  • Oxidation ditch.
  • Secondary clarifiers and RAS/WAS pumping.
  • Ultraviolet disinfection.
  • Sludge storage and loading station.
  • Sampling.
  • Electrical upgrade and generators.
  • Site improvements.
  • SCADA and reporting system.

Engineering Services

  • Conceptual design and cost estimate.
  • Preliminary design and cost estimate.
  • Detailed design and cost estimate.
  • Equipment and programming.
  • Checkout, startup and commissioning.
  • 3D scanning for documentation.
  • Operator training.
  • Project cost control.
  • Construction management.
  • Man-machine interface design.
  • EDMR reporting.

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Process Results provides innovative engineering solutions from concept to commissioning. Engineering is a "process" and with listening to our customers, we provide successful results. We base our business on relationships, and have established an 8-step process to better control the project to meet the needs of our clients.

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