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commissioning & startup< pre-construction / construction management >


MWH approach

MWH’s approach to commissioning and start-up (C&SU) is proactive and integrated into the preconstruction and construction phases. During preconstruction, the C&SU and construction team will work with each client to develop a C&SU sequence that prioritizes the operation’s needs (i.e., secondary expansion vs. tertiary) while maintaining plant operation.


successful startup & turnover

We work with design teams to develop and use advanced process models to predict and quickly implement the necessary operational parameters to achieve the desired effects. While many projects are plagued by problems and delays during startup, we have found that our approach facilitates rapid, successful startup and turnover.

Fred Brown, PE

City of Spokane
RPWRF NLT Program Manager

This project introduced new technology to our facility and having a dedicated commissioning and startup manager help our team train and operate the system was critical to our success. They had a well-thought-out plan that started during preconstruction and was fully executed during construction. This startup was extremely complex, and MWH exceeded our expectations.



started, totaling 559 mgd in last 8 years



per day our experts are locally available – even after the project is complete



of combined experience in commissioning and startup



A dedicated C&SU Lead, and his/her team, develop a proven strategy tailored to each project’s individual needs and an approach for managing the C&SU process starting in preconstruction: To ensure the City’s operations team is trained and confident in the new systems and infrastructure, they will be integrated with the C&SU Team. The lessons learned through hands-on troubleshooting will prepare the operations staff to operate the enhanced facility. Operations should witness and participate in certification of proper installation (COPI) of equipment, functional testing, system startup, and acceptance testing whenever possible. 



A successful transition from design to construction to commissioning and, ultimately, operations require a rigorous and systematic approach to planning. MWH fulfills the need for a centralized, integrated commissioning and start-up team to keep your plant operational during construction. 

  • MWH is unique in that we designate a C&SU Lead at the beginning of the project
  • We use process modeling to make better sequencing decisions for construction activities and commissioning
  • The commissioning and startup process begins well before it is time to turn on the switch
  • MWH established an electronic database solution called ActiveManuals which focuses on three principal types of manuals:
    • Operations
    • Maintenance
    • Business
  • Our ActiveManuals implementation team knows the challenges of onsite project manual organization and designed the database for intuitive and interactive solutions

Jim Oskowis

City of Tallahassee AWT Construction Manager 

Everyone in the City, including myself and upper management, are very pleased with the success of this project. We’re meeting the permit requirements and we’ve had minimal impact on City airport operations; we have a glowing safety record, no lost time accidents; and we’ve been able to maintain continuous operations of our existing treatment plant. We have met every challenge with success and, yes, I can say unhesitatingly that we are extremely pleased with this project.

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