The sewers of today collect a variety of items. A majority of them are problematic to a system and create either blockages and/or buildups which eventually cause sewers to back up or renders them unable to handle wastewater and/or sewerage flows. Following is a list of items actually removed from sewer systems THAT SHOULD NOT be put into a sewer system directly or indirectly (especially through toilets, sinks, drains or catch basins.)

Standard and heavy duty paper towels Paper Bags Newspapers Plastic garbage bags Plastic bags from food stores Plastic bottles Needles Razor Blades Acids Heavy duty cleaning fluids Toys Socks, shirts, pants, clothing Toothpicks Cotton swabs Bandages Whole Blood Used medical items Toothbrushes Feminine hygiene articles Condoms Writing Paper Pencils, pens and other writing utensils

Automobile parts Building materials Limbs, leaves, tree trunks Animals and animal parts Glass Items Metal baskets and items Plastic baskets and items Dirt, sand and other fill material Cooking oil or grease of any kind Left over food Cat litter Household appliances and furniture Guns, Knives, etc. Baseball bats, hockey sticks, etc. Basketballs, footballs, soccer balls, etc. Golf clubs and bags Food store carts Baby carriages