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Wastewater Case Studies

Donohue has performed Wastewater projects for public and private clients throughout the Midwest and beyond. Several case studies are provided below. These demonstrate some of our Wastewater experience and expertise that spans the entire wastewater system, from the collection system to the resource recovery facility.

Nutrient Removal Upgrades Thumbnail

The Village of New Lenox owns and operates three water reclamation facilities.

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Phosphorus Reduction Evaluation Thumbnail

The City of Beloit hired Donohue to assist with evaluating phosphorus compliance in the near and long term and to develop a planned phasing of improvements.

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Wastewater Planning and Permit Negotiations Thumbnail

The City of Faribault and Donohue negotiated with the Minnesota Pollution Control Agency (MPCA) to find a lower-cost alternative.

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Innovative Capacity Expansion Thumbnail

The City of Hutchinson, Minnesota retained Donohue & Associates to explore means of increasing capacity at the City’s wastewater treatment facility.

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Energy Master Plan Thumbnail

The Western Lake Superior Sanitary District (WLSSD) retained Donohue to collaboratively develop an Energy Master Plan for their wastewater treatment facility.

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Regional Waste Resource Recovery Program  Thumbnail

Donohue & Associates was retained to evaluate the feasibility of developing a regional waste resource recovery program for the Milwaukee Metropolitan Sewerage District.

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Phosphorus/Nutrient Removal Evaluation Thumbnail

Donohue developed and utilized a calibrated BioWin process model to identify and evaluate feasible alternatives to achieve future low nutrient effluent limits for the North Shore Water Reclamation District.

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Wet Weather Pumping and Treatment Thumbnail

The City of Fort Wayne retained Donohue & Associates to design major improvements to its 550 mgd Wet Weather Pump Station (WWPS).

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Indianapolis Collection System SCADA  Thumbnail

The City of Indianapolis retained Donohue to provide planning, design, and construction phase services for a new SCADA system to replace the City’s existing wastewater conveyance alarm system.

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Process Control System Replacement  Thumbnail

The City of Indianapolis retained Donohue to provide planning and design services for a new, state-of-the-practice integrated process control system at both plants.

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CSO Mitigation Thumbnail

The City of Goshen retained Donohue & Associates for a CSO abatement project, which was designed to enable the City to accomplish all of its LTCP requirements within a single 5-year discharge permit cycle.

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Modeling and Long Term Control Plan Update Thumbnail

Donohue has developed a robust MIKE URBAN hydrologic/hydraulic model capable of simulating dry and wet weather flows from the varied service areas including direct runoff and rainfall dependent inflow and infiltration.

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Southeast Basin Interceptor and Siphon Thumbnail

Richmond’s Southeast Sanitary Basin was experiencing surcharging and sanitary sewer overflows (SSOs) during wet weather events.

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Cole Junction Pump Station and Force Main Thumbnail

Donohue & Associates was retained by Jefferson City to evaluate alternatives to upgrade the 2,000-gallon-per-minute (gpm) Cole Junction Pump Station to convey 14,000 gpm during a 10-year storm event.

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Collection System Master Planning and Improvements  Thumbnail

Donohue & Associates was retained by the City of Willmar to provide planning, design, and program management services for a new 7.5 mgd average-day wastewater treatment facility and associated collection system improvements.

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Sanitary Sewer Master Plan Thumbnail

Donohue completed a two-phase project to develop a Sanitary Sewer Master Plan for Waukesha. This project identified the most cost-effective combination of Inflow and Infiltration (I/I) reduction, increased conveyance, and/or flow equalization to provide reliable wastewater collection for current and future customers.

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Biosolids Master Planning and Energy Improvements Thumbnail

The District retained Donohue to develop a planned approach for biosolids equipment replacement, process improvements, and future issues.

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White River CSO 039 Basin Thumbnail

Donohue designed the new facility including a 3-mg underground storage/primary treatment tank, a flow control structure, submersible lift station with 7200 gallons per minute (gpm) duplex pumping system, flow monitoring equipment, tank flushing system for odor control, and associated piping.

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Resource Recovery and Energy Efficiency Master Plan Thumbnail

Donohue conducted an evaluation of resource recovery and energy efficiency opportunities at the St. Cloud Wastewater Treatment Facility (SCWWTF).

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Upgrade Produces Exceptional Effluent Quality Thumbnail

Donohue worked collaboratively with the City of Eau Claire through planning, design, and construction of a complete replacement of the secondary treatment system with a biological phosphorus removal activated sludge system.

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Energy Optimized Resource Recovery Thumbnail

The Kenosha Water Utility embraces value-added innovation. The Utility recently completed an innovative project at their Water Resource Recovery Facility (WRRF) that demonstrates commitment to their unique brand of sustainability: protecting the financial well-being of their rate payers and enhancing the environmental benefits offered by their practice.

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