The Division of Sewerage and Drainage operates two wastewater treatment plants, Jackson Pike and Southerly. Wastewater from Columbus and 22 contracting suburban communities flows to one of these two plants, who combined treated an average of 208 million gallons per day in 2011, a year with record rainfall of 54.96". The photo to the right shows the sludge digesters at Jackson Pike, which are visible from I-71 south of downtown Columbus.

Other statistics on wastewater treatment in Columbus can be found in our most recent  Department of Public Utilities Annual Report.

Understanding Our Sewer System

Understanding Our Sewer System There are three types of sewers:
• Combined sewers carry both sewage and rain water to wastewater treatment plants
• Separate sanitary sewers carry sewage from homes and businesses to wastewater treatment plants
• Storm sewers convey rain water from streets, rooftops and parking lots to nearby streams
- learn more

Water Gushung Manhole

An Old Problem Our sanitary sewer system works well most of the time, but rain water and snow melt can seep into the system and overload it. When this occurs, the amount of water entering the sanitary sewer system exceeds the system’s capacity to hold it.
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Town Street Green Infrastructure

A New Approach The City of Columbus has developed a new approach to eliminate sanitary sewer overflows. Instead of simply storing excess water that seeps into the sanitary sewer system when rain falls and snow melts, Blueprint Columbus addresses the source of the problem.
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Com-Til Compost

Com-Til Compost Com-Til is a dark, rich compost that will break up tough clay soil, add valuable organic matter, provide both macro and micro nutrients, help retain moisture and provide a decorative mulch. The product is made from residual bio-solids from the City of Columbus wastewater treatment plants, yard waste and wood chips. - learn more

Hoover Crop

Keep It Clean Prevent water pollution through everyday living with simple tips to keep our water clean. Related topics include a Storm Drain Marker Program & Central Ohio River Pride. Simple tips cover topics such as: disposal of household hazardous waste, yard waste (including pet waste) and cooking grease; making simple lawn care choices; reducing stormwater runoff; maintaining cars & driveways properly; litter clean-ups & more. - learn more