Grease Trap Regulations in Saskatchewan

Overview of Saskatchewan FOG Compliance Framework

Saskatchewan regulates commercial fats, oils, and grease (FOG) through several layers of law. These include federal effluent rules, provincial environmental statutes, the provincially adopted plumbing code, and local municipal sewer bylaws. There is no single province-wide FOG limit.

The province sets hardware standards for grease interceptors through the National Plumbing Code of Canada 2020. Each municipality then decides how often traps must be cleaned, what levels may be discharged, and what records must be kept. Municipalities also set surcharges when commercial waste exceeds baseline strength. Saskatchewan does not use the Uniform Plumbing Code or the International Plumbing Code. The Canadian model also does not use the "Authority Having Jurisdiction" framing common in US literature.

Restaurants, cafeterias, bakeries, food processors, mobile food vendors, and all other commercial kitchens producing FOG wastewater must comply at every layer. The provincial layer sets what equipment may be installed and how it must be sized. The municipal layer controls how the equipment must be operated, monitored, and documented. Federal rules sit above both. Failure at the kitchen level cascades upward. It threatens the municipality's federal compliance and exposes the operator to fines, surcharges, and liability for damaged sewer mains.

This page covers the verified provincial framework, the federal context, and the municipal rules in Saskatoon, Regina, Moose Jaw, Yorkton, Prince Albert, and Swift Current. Every number, statute, and bylaw cited below traces to a primary government source.

Governing Authorities

FOG oversight in Saskatchewan is split between provincial agencies and municipal departments. The province handles environmental statutes and design standards. Municipalities administer sewer bylaws on the ground.

Provincial Authorities

Saskatchewan Ministry of Environment. The Ministry has primary authority to investigate, collect data on, and penalize unapproved discharges under The Environmental Management and Protection Act, 2010 (EMPA) EMPA 2010. The Ministry does not typically inspect each restaurant interceptors. It monitors watershed health and steps in when a municipal system fails in a way that pollutes water.

Water Security Agency (WSA). The WSA licenses municipal sewage works and sets engineering requirements for wastewater treatment plants through its Sewage Works Design Standard (EPB 503) WSA EPB 503. Excess commercial FOG raises biochemical oxygen demand at the plant. So municipalities tighten their local FOG bylaws to keep effluent within WSA-licensed limits.

Technical Safety Authority of Saskatchewan (TSASK). TSASK administers the provincial plumbing code. Effective January 1, 2024, Saskatchewan adopted the National Plumbing Code of Canada 2020 under The Construction Codes Act Sask building standards. The TSASK reference edition is available online TSASK NPC 2020.

Municipal Authorities

City of Saskatoon — Water and Wastewater Branch. Saskatoon enforces Sewer Use Bylaw 9466. The bylaw classifies FOG of animal or vegetable origin as a "restricted waste." It codifies the 25% interceptor capacity rule. It also sets recordkeeping mandates and statutory penalty caps Saskatoon Bylaw 9466. Non-emergency inquiries go to the city's Customer Care Centre Saskatoon contact.

City of Regina — Water and Sewer. Regina enforces the Wastewater and Storm Water Bylaw No. 2016-24 Regina Bylaw 2016-24. The city also has a "Prevent the Plug" program with public FOG guidance Regina Water and Sewer. Pumped interceptor waste must go to a controlled Hauled Wastewater Site Regina HWS. Inquiries go to Service Regina at 306-777-7000 Regina contact.

Other municipalities. Moose Jaw enforces Sewer and Water Utility Bylaw 5152 Moose Jaw Bylaw 5152. Yorkton enforces Public Sewage Works Bylaw No. 2125 Yorkton Bylaw 2125. Swift Current consolidates utility rules under Water and Wastewater Utility Bylaw No. 17-2001 Swift Current Water.

Installation and Sizing Requirements

Equipment standards in Saskatchewan are set at the provincial level. Operators planning a new commercial kitchen, a renovation, or a new interceptor must follow the National Plumbing Code of Canada 2020 and the supporting CSA B481 series. US standards do not apply.

Sizing Standards

Saskatchewan adopted the National Plumbing Code of Canada 2020 effective January 1, 2024. It requires grease interceptors to conform to the CSA B481 series. The official federal publication of NPC 2020 is available through the National Research Council NPC 2020 (publications.gc.ca).

NPC 2020 Section 2.2.3.2.(3) directs designers to CSA B481.0 for material, design, and construction requirements. It also directs them to CSA B481.3 for sizing, selection, location, and installation requirements TSASK NPC 2020. Sizing formulas from the US Plumbing and Drainage Institute G-101 standard are not automatically valid in Saskatchewan. The physical equipment must carry the CSA B481 certification stamp regardless of the calculation method used.

Saskatoon's Sewer Use Bylaw 9466 reinforces the provincial standard. Section 35(1) of Bylaw 9466 requires that interceptors be installed per the National Plumbing Code and operated per manufacturer guidelines and CSA B481 standards. This gives municipal inspectors authority to cite a kitchen for non-compliance with the national engineering standards Saskatoon Bylaw 9466.

Installation Standards

NPC 2020 Subsection 2.1.2.1.(1) requires every sanitary drainage system to connect to a public sanitary sewer, a combined sewer, or an approved private sewage disposal system. Commercial kitchens cannot use storm drains or open ground. TSASK NPC 2020. Commercial kitchens cannot route FOG wastewater to storm drains or onto open ground. It must go through an approved interceptor and into the sanitary system.

Saskatoon Bylaw 9466 adds practical access requirements. Interceptors must be on private property in a safe, easy-to-access location. Section 34(2) and 34(3) ban suspending interceptors from ceilings or placing them where they would put inspectors or pump-out crews at risk Saskatoon Bylaw 9466. Section 32(2) requires all non-domestic kitchen wastewater to pass through the interceptor before entering the sanitary sewer. This eliminates the option of discharging FOG into mop sinks or floor drains that bypass the trap Saskatoon Bylaw 9466.

Cleaning and Maintenance Frequency

Saskatchewan municipalities use a performance-based standard rather than a fixed pump-out schedule. The dominant rule is the "25% Rule." It is codified in Saskatoon's Sewer Use Bylaw and is the main maintenance threshold across the province.

City-Specific Requirements

Saskatoon. Section 35(3) of Sewer Use Bylaw 9466 requires FOG removal and cleaning often enough that combined food solids and floating FOG never exceed 25% of the unit's liquid depth Saskatoon Bylaw 9466. There is no fixed quarterly or monthly schedule. Cleaning frequency is set by how fast the kitchen fills the trap. A high-volume operation with multiple deep fryers may need pump-outs every two or three weeks. A low-volume cafe may go months between services.

Saskatoon also enforces a 100 mg/L discharge limit for FOG of animal or vegetable origin. It bans chemical agents, solvents, hot-water flushes, and biological additives meant to push FOG through the interceptor (Section 33) Saskatoon Bylaw 9466.

Operators in Saskatoon must keep two categories of records. Structural records include manufacturer sizing calculations, schematic drawings, installation date, serial number, and maximum flow rate. Keep these for the life of the equipment. Operational records include cleaning dates, volumes removed, hauler contact information, descriptions of any spills or malfunctions, and remedial actions taken. Keep these in the form of the city's "Schedule E." Retain them on-site for at least two years, or one year for mobile food trucks Saskatoon Bylaw 9466.

Regina. The Wastewater and Storm Water Bylaw No. 2016-24 does not set a fixed pump-out interval. Equipment compliance is governed by NPC 2020. Regina focuses on source-control practices. Let grease cool and solidify before disposal. Scrape it into the city's organic Green Cart program. Never use hot water to wash FOG down the drain Regina Water and Sewer.

Pumped interceptor waste must go to Regina's Hauled Wastewater Site. This requires advance approval from Environmental Services. It also requires lab analysis from a Canadian Association of Laboratory Accreditation (CALA) accredited lab. Access is via a permitted vacuum truck with an active RFID tag Regina HWS.

Moose Jaw. Bylaw 5152 bans discharge of effluent with biochemical oxygen demand greater than 2,500 ppm. It also bans suspended solids greater than 1,500 ppm. Surcharges apply to commercial dischargers whose loads exceed those thresholds Moose Jaw Bylaw 5152. Section 30.2(1) places duty for the lateral sewer line on the property owner. This runs from the building out to the city main. Pumped waste at the Moose Jaw septage site costs $40.00 per load for residents and $60.00 per load for non-residents. This is set by the city's Septage Disposal Policy Moose Jaw septage policy.

Yorkton. Sections 4.1(2) through 4.1(5) of Public Sewage Works Bylaw No. 2125 ban discharge of FOG requiring "unusual attention or expense" to handle. The bylaw places full maintenance duty on the owner. The owner must keep a written log of all cleaning dates. The city's Designated Officer may enter and inspect any premises with an interceptor Yorkton Bylaw 2125.

Prince Albert and Swift Current. Both cities defer hardware compliance to NPC 2020 and CSA B481. They enforce local discharge rules through their general utility bylaws Swift Current Water. Contact the local utility before any new installation or significant menu change.

Best Practices for Maintenance

Beyond the bylaw minimums, operators should keep FOG out of the trap in the first place. Regina's guidance is the clearest example. Scrape and wipe pots, pans, and dishes before washing. Collect cooking oil for a licensed renderer. Do not pour it into any drain. Let pan grease cool and solidify, then move it to the Green Cart organic stream Regina Water and Sewer.

Use strainers on every kitchen sink. Post "no grease down the drain" signs at pot sinks and dish pits. Train staff on the difference between sanitary drains and the grease interceptor. These steps reduce trap loading. They also reduce how often the legal threshold is reached. None of them replace the legally required pump-out and recordkeeping.

Federal Context

Municipal FOG bylaws in Saskatchewan exist partly to protect cities from federal prosecution. The federal government regulates fisheries and navigable waters. Environment and Climate Change Canada uses the Wastewater Systems Effluent Regulations (SOR/2012-139), made under the Fisheries Act SOR/2012-139. These apply to every municipal wastewater system that discharges to receiving waters.

SOR/2012-139 sets national effluent standards. Treated municipal effluent must meet carbonaceous biochemical oxygen demand (CBOD) and total suspended solids (TSS) limits. These apply before release into rivers such as the South Saskatchewan River or Wascana Creek. Excess commercial FOG raises both CBOD and TSS at the plant. Solidified FOG also causes sanitary sewer overflows. These discharge raw sewage to the environment and violate the Fisheries Act. To stay within its federal limits, each Saskatchewan municipality enforces the local FOG bylaws described above.

Penalties and Enforcement

Provincial law caps the maximum penalties Saskatchewan municipalities can impose for bylaw violations. The major cities use those caps in full when prosecuting FOG offences.

Saskatoon. Bylaw 9466 sets a maximum fine of $10,000 for eachs and $25,000 for corporations. Imprisonment of up to one year is also possible. A continuing-offence provision allows additional fines of up to $2,500 for every day the violation continues. The court may also order full restitution for sewer system damaged by FOG discharge Saskatoon Bylaw 9466.

Regina. Violations of Wastewater and Storm Water Bylaw 2016-24 expose corporations to fines up to $25,000 and eachs to fines up to $5,000. Regina also relies on its General Penalty Bylaw No. 2003-29. That bylaw allows fines up to $25,000 for corporations and $10,000 for eachs on any bylaw contravention without a specific penalty clause Regina General Penalty Bylaw.

Schedule C of Bylaw 2016-24 also allows financial surcharges on commercial loads at the Hauled Wastewater Site when pumped grease exceeds baseline strength. The hauler bills this surcharge and passes it to the originating restaurant Regina HWS.

Moose Jaw, Yorkton, Prince Albert, and Swift Current. Smaller cities draw penalty authority from the same provincial framework (The Cities Act) and their utility bylaws. In Moose Jaw, BOD or TSS readings above the prohibited-waste thresholds trigger surcharges and, in extreme cases, prosecution under Bylaw 5152 Moose Jaw Bylaw 5152. In Yorkton, failing to keep the required cleaning log is itself a violation of Bylaw 2125 — regardless of the trap's physical condition at inspection time Yorkton Bylaw 2125.

In every Saskatchewan municipality, the property owner is also liable for the actual cost of clearing or replacing any portion of the sewer system that a FOG blockage damages. This cost often far exceeds the statutory fine.

Operators uncertain about a specific provision should contact their municipal utility directly before relying on any third-party summary. Saskatoon routes inquiries through its Customer Care Centre Saskatoon contact. Regina routes inquiries through Service Regina at 306-777-7000 Regina contact.