Proper disposal of kitchen grease protects your home and our waterways

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Stormwater | Grease Safety

It may be tempting to get rid of kitchen grease by dumping it down your kitchen sink or in a storm drain outside your home, but doing so can cause big problems.

When poured down the sink or flushed down the toilet, grease can clog your home's plumbing and cause backups into your house. It can also cause problems in the city's wastewater collection lines resulting in health hazards for people, animals and our waterways.

Grease that's poured into storm drains (these are the drains that run directly into our waterways) can clog the drains, attract rodents and other pests, and allows pollutants to flow untreated into waterways.

You can dispose of kitchen grease in the trash once it's cooled. If you are concerned about leaks, you can mix the grease with an absorbent material like kitty litter.

Other things that shouldn't go down the storm drain

Illicit discharge is the term we use to describe anything that goes into storm drains other than water from rain, snow, or hail. The general rule is "only rain down the drain." Here are some common types of illicit discharge are:

  • Kitchen grease from restaurants or homes
  • Household chemicals like paint and detergents
  • Vehicle fluids such as radiator fluid, motor oil, and gasoline
  • Washout from concrete trucks
  • Residential waste and industrial facility discharges

Proper disposal and reporting spills

We have lots more important information posted for you on our website including how to properly dispose of household chemicals and how you can report spills or illegal dumping. 

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