Information for wastewater haulers

Know where to dispose of your waste

Acceptable waste can be taken to the appropriate City of Calgary receiving facility. All other waste must be taken to a third-party facility that is able to process the material being disposed of.

It’s important to take your wastewater to the correct place for disposal. When prohibited materials enter our wastewater treatment plant they can disrupt the treatment process, damaging infrastructure and potentially causing untreated water to be released back into our rivers.  

To ensure compliance, all samples will be screened using online instrumentation, and random samples will be sent to the lab for analytical testing. Disposing of non-compliant wastewater at City facilities may result in enforcement action, up to and including suspension of the hauled wastewater permit.

Waste accepted at City facilities

Material Description Disposal instructions

Domestic Wastewater

Wastewater generated as a result of domestic activities, including cooking, cleaning, washing, urination, and defecation.

Dispose of at Valleyfield Wastewater Treatment Station

Hours of Operation

  • Monday – Saturday, 6:15 a.m. to 5:30 p.m.
  • Closed Sunday and holidays

Emergency or after hours

  • Bonnybrook Wastewater Treatment Plant
  • Enter at 42 Avenue and 17A Street S.E.
  • Outside Valleyfield business hours
  • By appointment only
  • Contact the chief operator at 403-312-0127 to schedule an appointment

Septage

Wastewater removed from a cesspool, septic tank system, privy vault/pit, chemical toilet, portable toilet, or other domestic wastewater holding structure.

Dispose of at Valleyfield Wastewater Treatment Station

Hours of Operation

  • Monday – Saturday, 6:15 a.m. to 5:30 p.m.
  • Closed Sunday and holidays

Emergency or after hours

  • Bonnybrook Wastewater Treatment Plant
  • Enter at 42 Avenue and 17A Street S.E.
  • Outside Valleyfield business hours
  • By appointment only
  • Contact the chief operator at 403-312-0127 to schedule an appointment

FOG (Fats, Oils, and Grease)

Animal and/or vegetable fats, oils, and grease, removed from a grease interceptor. Typically from a food service establishment, as a result of food preparation, cooking, and washing.

Dispose of at Bonnybrook FOG Disposal Station

  • Enter at 42 Avenue and 17A Street S.E.
Hours of operation
  • Monday - Friday, 8:00 a.m. to 4:00 p.m.
  • Closed Saturday, Sunday and holidays

 

Waste not accepted at City facilities

Any process waste from these types of facilities/activities:

  • Slaughterhouses
  • Firefighting foam
  • Metal plating
  • Alcohol and fermentation
  • Car wash sumps
  • Lift station 
  • Drilling mud
  • Sludge (activated, digested, or otherwise.)
  • Laboratory
  • Hydrovac (untreated)
  • Medical/pathological/pharmaceutical
  • Grit removed from ICI premises

Other waste prohibited at City facilities

  • Wastewater with a pH less than 5.5 or greater than 10.0; 
  • Solid or viscous substances including but not limited to: ashes, bones, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, animals or animal parts, animal feces and blood; 
  • Herbicides and pesticides;
  • Compounds that pass through the plant untreated;
  • Polychlorinated biphenyls (PCBs);
  • Per- and polyfluoroalkyl substances (PFASs);
  • Bisphenols and Phthalates;
  • Hydrocarbons;
  • Unused or waste chemicals;
  • Leachate;
  • Undeclared waste;
  • Hazardous waste including:
    • Harmful or foul-smelling materials or substances which, either by themselves or by reacting with other wastes, are capable of causing damage to the public sewage works; creating a public nuisance or hazard, or preventing any person entering the sewers for purposes of maintenance or repair;
    • Materials or substances which either by themselves or by reacting with other material becomes highly coloured; 
    • Reactive substances that are normally unstable and readily undergo violent changes without detonating; react violently with water; form potentially explosive mixtures with water; generates toxic gases when mixed with water; 
    • Vapours or fumes in a quantity sufficient to present danger to human health or the environment; 
    • Cyanide or Sulphide bearing waste which, when exposed to pH conditions between 2 and 12.5, can generate toxic gases, vapours or fumes in a quantity sufficient to present danger to human health or the environment; 
    • A substance that is capable of detonating or exploding when subjected to a strong initiating source or heated under confinement;
    • Substances that are readily capable of detonation or explosive decomposition or reaction at standard temperature and pressure; 
    • A substance that is an explosive (Class 1) as defined in the regulations under the Transportation of Dangerous Goods Act, 1992, S.C. 1992, as amended; 
    • Corrosive substances;
    • Substances classified as “Hazardous Waste” by any regulating body.

Apply for a Hauled Wastewater Permit

If you are transporting loads of wastewater, septage or FOG (fats, oils, grease) to a designated City site for disposal to the wastewater system, you will require a Hauled Wastewater Permit. Apply for a Commercial Hauled Wastewater Permit.

All hauled wastewater must comply with the wastewater bylaw, specifically the substances listed in Schedules A, B, and C.  (Portable toilet and septic waste are exempt from the BOD and TSS limit)

Hauled Wastewater Manifest

A fully completed and legible manifest must accompany each load of hauled wastewater. 

Download a fillable PDF of the Hauled Wastewater Disposal Manifest form.

Sample manifest form. Click image to expand.

Please contact 311 with any questions or concerns.