WorkSafeBC updated its occupational health and safety regulations to include specific provisions around flush toilet requirements on construction sites. Here is what changed, who it affects, and what contractors in British Columbia need to do to stay compliant.

What Changed

The updated WorkSafeBC OHS Regulation includes provisions that require employers to provide flush toilets on construction sites under certain circumstances. The intent is to improve sanitary conditions for workers on longer-duration projects and to bring construction site facilities closer to the standard expected in permanent workplaces.

The key points of the regulation include requirements for flush toilet facilities when projects exceed a certain duration and when the number of workers on site reaches specific thresholds. The regulation recognizes that different site conditions may affect what is reasonably practicable.

Who Does This Affect?

The flush toilet requirement primarily affects:

General contractors managing larger construction projects
Project owners responsible for site conditions
Subcontractors who may need to coordinate with the general contractor on shared facilities
Property developers overseeing multi-phase residential and commercial builds

Smaller residential projects, short-duration work, and remote sites may still meet compliance with standard portable toilets, depending on the specific conditions.

Standard vs. Flush: What Qualifies?

Standard portable toilets use a chemical holding tank and do not flush. They meet the basic WorkSafeBC requirement for toilet facilities on construction sites and are appropriate for many applications.

Flush portable toilets (deluxe units) have a flushing mechanism, a hand wash sink with running water, and provide a more hygienic experience. These units support compliance with the flush toilet provisions, though acceptance on a given site is at the inspector’s discretion. Because these units do not include heating, they may not fully satisfy the requirement during winter months.

Luxury washroom trailers also satisfy the flush requirement and provide the highest level of comfort on a construction site.

How to Comply

If your project falls under the flush toilet requirement, here is what you need to do:

Assess your project: Determine whether the duration, worker count, and site conditions trigger the flush toilet requirement for your specific project.
Contact your portable toilet provider: Discuss the requirement with Action Septic. We can recommend the right mix of standard, deluxe, and ADA units to meet compliance.
Document your decision: Keep records of your assessment and the facilities provided. This demonstrates due diligence if a WorkSafeBC inspector visits your site.
Maintain facilities: Flush units require the same regular servicing as standard units. Weekly servicing keeps them clean, functional, and compliant.

What If Standard Units Still Apply?

Many construction sites in the Okanagan will continue to meet compliance with standard portable toilets. The regulation accounts for factors like site remoteness, project duration, available infrastructure, and what is reasonably practicable. If your project does not trigger the flush requirement, standard units at a ratio of 1 per 10 workers remain compliant.

The important thing is to assess your specific situation rather than assume one approach fits all projects. Upgrading to deluxe flush units demonstrates compliance effort and is generally well received by inspectors, particularly during warmer months.

Cost Implications

The cost difference between standard and deluxe flush units is manageable for most projects:

Standard units: approximately $150 per month with weekly servicing
Deluxe flush units: approximately $230 per month with weekly servicing

For a project with 20 workers needing 2 units, upgrading from standard to deluxe adds roughly $160 per month, a small price for regulatory compliance and improved worker satisfaction.

ADA Accessibility

Regardless of whether your site requires standard or flush toilets, accessibility requirements remain the same. If any worker has mobility limitations, provide at least one ADA-accessible unit. ADA units are available in both standard and flush configurations.

Getting the Right Setup for Your Site

Action Septic works with contractors and developers across the Okanagan to set up compliant washroom facilities for construction sites of all sizes. We stay current on WorkSafeBC requirements and can help you determine the right number and type of units for your project.

Need construction site portable toilets that meet WorkSafeBC requirements? Call Action Septic at 250-808-7867 for a fast quote. We deliver throughout the Okanagan, including Kelowna, West Kelowna, Vernon, and Lake Country. See all our portable toilet rental options.

WorkSafeBC Flush Toilet Rule: What Contractors Need to Know