http://www.saanich.ca/living/environment/pdf/ob/OurbackyardWinter2011FinalWeb.pdf
Fats, oils, and grease (FOG) aren’t good for our sewers or septic systems. This season,
put FOG where it belongs. You’ll keep your drains clear and our sewers, septic, and
watersheds clean and healthy.
Each year almost one million kilograms of fats, oils and grease (FOG) are poured down
residential drains. These household cooking oils, salad dressings, and fat or grease
from meat really clog up our wastewater treatment process and they also impact the
environment. The build-up of FOG in sewer or septic lines can cause blockages that
force sewage back into homes or allow it to spill over into our watersheds.
Clogged or restricted sewer lines aren’t just a messy situation for cleanup crews,
they’re also expensive to deal with: fat clogged lines can cost you in tax dollars.
Municipalities are spending up to $10,000 per block to repair and maintain sewer
lines due to the build-up of FOG.
If you’re connected to an onsite septic system, FOG can also be hard on your tank and
drain field. Oils can form a puddle on the surface of your septic tank, preventing septic
tank bacteria from doing their digesting job. If FOG moves from the septic tank into
the drainage field, it can cause expensive blockages and contaminate surrounding soil
and groundwater supplies.
Even FOG in liquid form (such as olive oil) can cause problems when you pour it down
the drain; many oils solidify at lower temperatures and can clog further down the
line. Those that don’t solidify often bind to other forms of fats and grease, creating
blockages, or they move through the system too quickly, preventing treatment.
The good news? The solutions are simple and free!
For small amounts of grease, sauces, and salad dressings:
Use a paper towel or citrus peels to wipe
out the container and remove most of the
oily residue before rinsing in the sink.
For grease left over from cooking and
frying:
•Cool fats, then pour or scoop into a
sealable container.
•Store the sealed container in the
refrigerator or freezer until full and
then dispose of it with your household
garbage, curbside organics collection
bin where applicable, or take it to the
recycling area at Hartland Landfill, no
charge, to be recycled into industrial
fuel, soap, among other consumable
items.
For large residential amounts of deep fryer fat:
•Store in a sealed container and take to Hartland Landfill for recycling.
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