Wastewater Systems

Planning, Design and Construction

For more than 50 years, we have helped communities manage their utility needs, protect their precious water resources and plan for the future. We support communities’ short and long-term sanitary system needs from the initial study phase through the final facility design.

  • Wastewater Treatment Plant | Village of Dexter, MI

    System design improvements minimize inflow/infiltration and result in construction of 400,000 gallon equalization basin

  • Detroit Metro Airport Force-Main Project and Pump Station | Detroit, MI (Wayne Co.)

    New pump station for dewatering airport ponds and 5.7 mile force-main, resulting in an additional 1M gallons of outlet capacity per day

  • Jackson Road Pump Station Rehab | Scio Township, MI

    Two-phase rehabilitation of the Jackson Road pump station originally constructed in 1986

  • Sanitary Sewer Upgrade | Auburn Hills, MI

    System repairs to reduce inflow and infiltration into the sanitary sewer system thereby reducing sewage treatment costs

  • Superior wastewater expertise

    Wastewater treatment and collection experts providing design, modeling asset management and GIS services

Core Services

Modeling and Studies

CSO/SSO Studies and Analysis
Long-Term Corrective Action Plans
Utility Master Plans
Hydrologic and Hydraulic Modeling
SSES Analysis and Flow Metering
Inflow and Infiltration Analysis
SRF Project Plans

Facility Design

Gravity Sewer and Interceptors
Wastewater Treatment
Pump Stations
Equalization Basins
System Rehabilitation

Field Services

Flow and Rainfall Monitoring
Manhole Inspections
Sewer Televising Review
Smoke Testing
Footing Drain / Sump Inspections
Footing Drain Disconnection Programs
PACP / MACP Programs


Ask Us About

Antecedent moisture modeling tools can save your community money by predicting your real utility infrastructure needs

Antecedent moisture modeling tools which can save your community money by predicting your real utility infrastructure needs.
Developing asset management plans to qualify for SAW grant funding.


Project Spotlight

Village of Dexter, MI wastewater treatment plant upgrades featured Wastewater Systems projectWastewater Treatment Plant Upgrades | Village of Dexter, MI

Through the course of several years of investigations, studies and analyses, it was found that a significant amount of inflow and infiltration (I/I) was entering into the sewer system, taking up valuable wastewater treatment plant (WWTP) capacity. The Village of Dexter authorized OHM Advisors to take the first step in securing grant and loan funding for upgrades to their WWTP. Upon securing funding, the Village contracted with our team to design system improvements to minimize I/I and construct a 400,000 gallon equalization basin.

The equalization basin design included a flow control vault and diversion chamber to overflow excessive wet weather flows to the equalization basin and a new sanitary pump station to return the flow to the WWTP during normal flows. A new back-up generator system was added along with new controls and telemetry to streamline operations and maintenance efforts.

Additional Services

Funding Procurement
SCADA Systems
LEED / Sustainability


Technical Expertise

Sherri Wright, PE, Senior Engineer

Sherri has experience specializing in the analysis, development, design, and construction of infrastructure facilities for municipalities. She is a project manager responsible for report writing, contract document preparation and owner/agency liaison services during the design of wastewater collection/treatment facilities and water distribution/treatment facilities.

Sherri provides construction contract administration and contractor liaison services during construction of these projects and writes performance certifications after completion.

"Clean water is really important and it's empowering to know that the work we do directly helps not only our clients and their communities, but the environment. It's an exciting challenge to use data and technology to unlock creative engineering solutions for our clients."
Sherri Wright, PE -

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