Two types of sanitary sewers make up our system: combined and separate. Found in older sections of the city, combined sewers carry both rain water and sewage. The rest of the city is served by separate storm and sanitary lines. Learn more about the pitfalls of these systems & what we are doing to address them.

Green infrastructure offers promising solutions to help remove contaminants from storm water before it reaches our water supply or sewer system. The EPA is strongly promoting the use of green infrastructure to comply with both stormwater regulations and elimination of sewer overflows. They issued a policy in June 2012 to encourage integrated planning in the treatment of storm and wastewater. Read more about how Columbus is responding and the next steps coming. 

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.

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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 hazerdous 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.