Fats, Oils and Grease


 Fats, Oils and Grease (FOG) pose major problems for every municipality in the U.S. and Columbus is no exception. Every household and restaurant discharges FOG into the sewer system each day. These FOG’s solidify in the sewer system causing blockages and back-ups to the normal flow in the system. This ultimately causes Sanitary Sewer Overflows (SSO) which release raw, untreated sewage into our creeks, streams and the river. To reduce the impact of FOG on the sewer system, the Columbus Water Works (CWW) has a FOG Program which requires restaurants to control the amount of grease released to the system. These controls include good kitchen practices, containment of the FOG and removal. This program has dramatically reduced the amount back-ups in Columbus’s sewer system over the past decade.

Homeowners can help too by not pouring cooking grease down the drain causing their own drain lines to clog. CWW and the City of Columbus are working together to provide a recycling program for homeowners to dispose of their household grease which CWW uses as fuel (see Wastewater Treatment).


Fats, Oil & Grease Process