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  Sanitary Sewer



The City of Prince George’s sanitary sewer system collects wastewater from residential, commercial, institutional and industrial properties through a network of pipes and lift stations to a treatment facility or lagoon prior to discharging it into the Fraser River. The Utilities Division is responsible for the operation and maintenance of the Wastewater Treatment Centre (WWTC), 6 lagoons, and 32 lift stations.

The WWTC treats approximately 315,000 m or over 83,000,000  gallons of wastewater annually collecting flows from toilets, sinks, dishwashers and washing machines.  Everything you flush or dump down the drain ends up in the sanitary system so please consider which waste shouldn't go down the drain and do not use your toilet as a garbage.

Sanitary Do's and Don'ts


In addition to causing blockages some waste materials can be hazardous and can cause damage to the treatment plant and be harmful to the environment, while others complicate the treatment process or pose a health threat to maintenance and repair crews.  By following the Do's and Don'ts you can prevent blockages and keep the sanitary sewer treatment process running correctly.

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Sanitary Do's

  • Place liquid fats, oils and grease (FOG) into a jar or container with a lid to cool and then dispose in the garbage.  Wipe down greasy pots and pans with a paper towel prior to washing in the sink or dishwasher;
  • Use a strainer over the drain in your sink, tub and shower and empty collected material into the garbage not the toilet;
  • Place food scraps in the compost or garbage, scrape dishes into the garbage not the sink;
  • Use biodegradable products for cleaning and doing laundry;
  • Use the manufacturer’s recommended amount of detergent for washing up in the kitchen or laundry. The average household uses three times more detergent than recommended for washing dishes and clothes.  Cutting back will also save you money on buying the detergents;
  • Place a garbage can in the bathroom to dispose of solid wastes such as disposable diapers, condoms, paper towel and personal hygiene products;
  • Take pharmaceutical products to a pharmacy to be properly disposed;
  • Promote the concept of the "3 R's": Reduce, Recycle, Reuse

 Sanitary Don'ts

  • Do not use the toilet as a wastebasket;
  • Do not pour fats, oil or grease (FOG) down the drain as they will solidify when they get into the cold pipe;
  • Do not pour sour milk down the drain, One liter of full cream milk has enough fat in it to cover the surface of an Olympic-sized swimming pool. Simply dispose in your garbage;
  • Do not wash food scraps, tea leaves, coffee grounds and eggshells down the sink; 
  • Do not flush razor blades, condoms, pharmaceutical products, cigarette butts, nail polish remover, toilet deodorant dispensers or other non-biodegradable products down the toilet;
  • Do not pour chemicals, paint, motor oil, pesticides or any other harmful products down the drain.  Check local recycling depots for products accepted for proper disposal.  Improper disposal may lead to fines.
  • Do not flush a commercial grease interceptor with hot water to clean, properly remove all grease and dispose of appropriately.  It should also not go through the dishwasher before going into the system.
  • Do not use excessive detergents as when these detergents enter the sewage system, they hold large amounts of oil, grease and fats in suspension making cleaning and treating the wastewater difficult and more costly.  In addition by cutting down on the amount of detergent used, there will also be less phosphate in the environment to cause the growth of algae in water.

 For information on residential blocked sanitary sewer see the Residential Sanitary Sewer Backup web page.

Sanitary Cleanout




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The sanitary cleanout is the exterior access point of the service connection for removing obstructions or inspecting with a camera to identify potential problems.  The property owner is responsible for maintaining the cleanout and ensuring easy access for city staff, a licensed technician or a plumber.  Cleanouts are not to be buried or paved over, any damage incurred in locating the cleanout is the property owners responsibility.  If your cleanout needs to be raised or lowered or if the cap is missing or damaged, please contact the city immediately as any damage to the cleanout from negligence will be repaired by city staff at the cost of the property owner. 


All cleanouts located in driveways are required to be located in a valve box supplied by the city and installed by the property owner or contractor.  If a cleanout is not level with the driveway contact the City as it is the City's responsibility to have City staff available to raise and lower utilities such as water stand pipes and sewer cleanouts at the publics request and within a timely manner.


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©2013 City of Prince George 1100 Patricia Blvd. Prince George, British Columbia, Canada V2L 3V9 Telephone: 250.561.7600