First aid, emergencies and reporting

Every lesson so far has been about preventing harm. This last lesson is about what happens when prevention fails: a worker is hurt, a fire starts, a chemical spills, someone collapses. In the first minutes of an emergency, the people on the spot make the difference, and on a construction site those people are usually co-workers, not paramedics. The lesson then closes the loop with reporting and investigation, the habits that turn each incident and near miss into a lesson for the whole site, and a review of what Maya has learned in her first months.

First aid on a construction site

In Ontario, first aid requirements for most workplaces, including construction projects, are set out in Regulation 1101 under the Workplace Safety and Insurance Act and administered by the WSIB. Employers must provide a first aid station with a kit sized to the number of workers, post the WSIB first aid poster, keep a record of first aid given, and have workers with valid first aid certificates on each shift; the level of training required depends on the number of workers per shift. Since January 1, 2026, Ontario has also required construction projects with 20 or more workers that are expected to last three months or more to have an automated external defibrillator (AED) on site, maintained and readily accessible, with at least one worker trained in CPR and its use. Other provinces set their own first aid rules, often based on the CSA first aid standards.

Maya completed a first aid and CPR course in her pre-apprenticeship program, and Northbridge will keep her certificate current. Even workers who are not designated first aiders should know where the kits, eyewash and AED are, how to call for help, and the basics of what to do until help arrives.

Responding to an injury

Every first aid course teaches a sequence, and the first step is the one people most often skip: make sure the scene is safe before you approach. A worker lying at the bottom of a ladder may have fallen because of an electrical shock from a cord that is still live; a worker collapsed in a pit is in an atmosphere that will overcome a rescuer (lesson 9).

When you call 911 from a construction site, the dispatcher needs to know exactly where to send the ambulance, and a large site can be confusing to find. Kingsway Tower's emergency card gives the street address of the site gate, the cross street, and a reminder to send a worker to the gate to guide paramedics to the right floor. The hoist is reserved for the paramedics as soon as an emergency is called.

Fires

Fires on construction sites start most often from hot work, such as soldering, brazing, welding and cutting, from temporary heating, from electrical faults, and from smoking. Buildings under construction are especially vulnerable because fire separations, sprinklers and alarms are not yet in service, and wood framing, packaging and waste are everywhere.

Hot work on Kingsway Tower needs a permit from Stonebridge. The permit requires the area within a set distance to be cleared of combustibles or protected with fire blankets, a suitable fire extinguisher at hand, and a fire watch who stays during the work and for a period after it ends, typically 30 to 60 minutes, because smouldering fires in insulation or wood can take time to show. Maya often serves as Luis's fire watch when he solders near wood framing.

To use an extinguisher, remember PASS: pull the pin, aim at the base of the fire, squeeze the handle, sweep from side to side. Fight a fire only if it is small, you have the right extinguisher, you have a clear exit behind you, and someone has raised the alarm. If any of these is not true, get out and leave it to the fire department.

The emergency plan

Every site needs an emergency response plan, and every worker needs to know their part in it. Kingsway Tower's plan covers fire, serious injury, structural collapse, gas leak, chemical spill and severe weather, and it is reviewed at orientation and practised in drills.

Signing in and out every day may feel like paperwork, but it is what makes the headcount work. If a crew of six is at the muster point and the sign-in sheet says seven, the fire department needs to know immediately that someone may still be in the building, and where they were working.

Spills

Small spills of products such as solvent cement, cutting oil or cleaners are part of mechanical work. The SDS, section 6, describes how to clean up each product. Most sites keep spill kits with absorbent pads, granules and bags near chemical storage. The response is: stop the source if it is safe to do so, keep people away, ventilate if the product gives off vapour, remove ignition sources for flammable products, absorb and collect the spill with the right material and PPE, dispose of it as the SDS directs, and report it. A large spill, a spill of something you do not recognize, or any spill that reaches a drain is reported immediately for a trained response, because it may also be an environmental release that the employer must report.

Reporting incidents and near misses

Lesson 2 explained why every injury must be reported. Near misses matter just as much. A near miss is an event that could have caused injury or damage but did not: a hammer that fell from the floor above and landed a metre from someone, a worker who slipped on a stair but caught the rail, a cover that moved underfoot. The difference between a near miss and a serious injury is often luck. Sites that collect and act on near-miss reports fix hazards before they hurt someone.

A good investigation asks why the incident happened, not who is to blame. The strapping fell because it was left near an edge without a toe board, because the toe boards had been removed to land a load and not replaced, because the procedure for landing loads did not say who replaces them. Each answer points to a fix. If the investigation stops at "worker was careless", nothing changes and the same thing happens next month.

Looking back on the first months

By the end of her first season, Maya has used almost everything in this course. She has learned the site's hazards and rules, used her right to refuse once and her right to participate several times, read labels and SDSs for every product she uses, filled out a hazard card every morning, worked behind guardrails and tied off on the roof, set up ladders and rolling scaffolds properly, put her own lock on equipment, protected herself from electricity and silica, recognized confined spaces and stayed out of them, chosen the right PPE and served as a fire watch.

The next courses in the Skilled Trades stream build on this foundation with tools, trade mathematics, blueprint reading and the skills of each trade. Safety does not stop being a topic after this course; it becomes part of how every task is taught. Maya's foreman put it simply on her first day: the job is not done until everyone goes home in the same condition they arrived.