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Water Quality

Addressing stormwater quality is equally as important as dealing with the quantity of wet weather flows. Water flows over streets, parking lots, and other impervious areas and collects oils, dirt, and other pollutants in the process. Our goal is to protect the environment for this generation and generations to come. Donohue is experienced in developing Stormwater Quality Management Plans, helping communities meet their MS4 permitting requirements, and identifying green, sustainable infrastructure improvements that help to reduce pollutant pressures on our waterways. 

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Donohue provided analysis of upstream flows and design of new storm sewers to convey this flow to the DOT project. Donohue then designed the storm sewer and a new outfall to convey stormwater from the outlet of the DOT project to the bay of Green Bay.

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Rossville is a combined sewer community that was struggling to mitigate combined sewer overflows.

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The Sheboygan Water Utility retained Donohue to design water storage reservoirs and a booster pumping station.

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Stormwater Management Master Plan Thumbnail

The City of Butler was experiencing surface flooding, combined sewer backups into homes, storm sewer surcharging, and high rates of infiltration and inflow during wet weather periods.

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The City of Hammond operates a Municipal Separate Storm Sewer System (MS4) as designated by EPA’s Clean Water Act NPDES Phase II Storm Water Program.

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