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When Grease Goes Down the Drain, Sewage Backs Up
Posted on Aug 23rd, 2012


The Wastewater Resources Department provides efficient and timely sanitary sewer collection service to residential, commercial and industrial customers while building the integrity of our system to enhance water quality and protect the environment for future generations.
Our goal is to reduce sewer spills through system maintenance and education.  Grease is the number one cause of system blockages. Spills will not be eliminated unless the amount of grease that is placed in the system is reduced.

NEVER POUR GREASE DOWN ANY DRAIN
Household kitchen drains are a major source of fats, oils and grease.   Grease related overflows come from apartments and homes throughout our community.   Remember that grease blockages can cause wastewater to backup inside homes and damage property.

• FRYER OIL OR “YELLOW GREASE”:
Although a liquid fryer oil should be disposed of in the trash and not down the drain.  Allow the oil to cool and then pour into a plastic container and dispose of in your trash. Another method of disposal is to mix the oil with kitty litter or coffee grounds and dispose of the mixture in your trash.
• OVEN GREASE:
Although a liquid when removed from the oven, this grease will harden when allowed to cool.  The same hardening process that occurs in a container on the kitchen counter occurs within the sewer system.  The only difference is that once the grease has hardened in a container it may be disposed of in the trash.
Your kitchen drain is not a dump.  It is important to keep fats, oils and grease out of the City sewer system.  Putting these greasy materials down a drain can cause wastewater to backup into your home.  These types of backups are avoidable as well as costly for you and the City to clean up.
 
PROPER METHOD TO DISPOSE OF GREASE!
DO
• Use an old coffee can or jar as a grease container.
• Pour greasy or oily food wastes into the container, NOT down the drain or garbage disposal.
• Allow animal fats to cool or freeze in the container before throwing them in the trash.
• Mix liquid vegetable fats with an absorbent material such as kitty litter or coffee grounds in a sealable container before throwing in the trash.
DO NOT
• Pour grease or oil down drains or garbage disposals.
• Use hot water to rinse grease from cookware, utensils, dishes or surfaces use paper towels first.
• Put food scraps down drains.

EFFECTS OF GREASE ON NORTH CAROLINA AND CONCORD SANITARY SEWER SYSTEM
• North Carolina grease production is 45,000,000 gallons per year and rising.
• Concord’s yearly grease removal through contracted pump and hauling 600,000 to 750,000 gallons per year.
• Grease removed at the Rocky River Wastewater Treatment Facility is between 5,000 and 10,000 gallons per month.
• Statewide, 40 to 60 percent of all sanitary sewer overflows are caused by GREASE.
 
AS A STEWARD OF THE ENVIROMENT HELP US KEEP GREASE OUT OF THE SANITARY SEWER SYSTEM