As you clean up after your Thanksgiving feast, avoid dumping any fats, oils or grease down kitchen drains, officials warn.

The substances can clog pipes, triggering leaks or spills in the house and elsewhere in the water system, according to the Atlanta Department of Watershed Management. Grease blockages are a common problem in the holiday season, the department said.

Cooking oil and grease from meats are obvious sources of drain-clogging substances. But other culprits can include mayonnaise, peanut butter, chocolate, ice cream and salad dressing, the department says.

Such substances should be put in the trash instead of dumped down a drain, the department advises.

John Ruch

John Ruch is an Atlanta-based journalist. Previously, he was Managing Editor of Reporter Newspapers.