Plumbing · Canada

FLHA for burst pipe repair

By Safety PaperworkBuilt from provincial OHS law and CCOHS guidance · How we write and check theseUpdated November 9, 2026

Provincial OHS law requires hazards to be assessed and controlled before work starts. A field level hazard assessment (FLHA) for burst pipe repair is done on site at the start of the shift and again whenever conditions change.

It lists the tasks, hazards and controls, and every worker signs on before starting and signs off at the end of the shift. The main hazards are electric shock from live wiring, disturbing asbestos, fire from hot works and mould and droppings.

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FLHA example: burst pipe repair

This is a complete FLHA for burst pipe repair, with 6 job steps. Open it in the builder to add your site, crew and signatures, change anything, and download a PDF. Or download the free Word template below and fill it in by hand.

Field Level Hazard Assessment (FLHA)

Burst pipe and leak repair · Plumbing · Example

Document FLHA-001 · Rev 1

Job steps, hazards and controls

#	Job step	Hazards	Risk before	Controls	Risk after
1	Shut off water at the main and isolate power anywhere water has reached	Electric shock from live wiring Slips and trips	Critical	Isolate the power before any work. Do not work live. Elimination Lock out and tag the isolation point with your own personal lock and danger tag. Engineering (guarding) Test before you touch: prove dead at the point of work with a tested voltage tester. Engineering Only licensed electricians do electrical work, to the Canadian Electrical Code and provincial rules. Administrative Check for back feeds from solar, batteries and generators that can keep a circuit live after the main switch is off. Administrative If energized work cannot be avoided, use a permit, a safety observer and insulated tools, following CSA Z462. Administrative Wear insulated gloves, arc-rated clothing and a face shield when testing or working near live parts. PPE Plan walkways and keep them clear of materials, hoses and leads. Elimination Run leads and hoses overhead on hooks or stands, or along walls, not across walkways. Engineering Slips and trips: see step 6 for the full controls Administrative	Medium
2	Check for mould and sewage contamination in wet areas	Mould and droppings Sewage and wastewater	Medium	Fix the water leak and dry the area before removing mould. Elimination Seal off the area with plastic sheeting and keep occupants out. Engineering (guarding) Clean up with a HEPA vacuum and wet wipes. Never dry sweep. Engineering Bag mouldy material on site and remove it promptly. Administrative Wash hands and face before eating and at the end of each shift. Administrative Wear an N95 (or better) respirator, gloves, goggles and disposable coveralls. PPE Flush and drain the line before opening it, and plan the job to avoid contact. Elimination Use drain cameras, jetters and long-handled tools to keep hands out. Engineering Cover cuts with waterproof dressings. Never eat, drink or smoke before washing. Administrative Wash hands well and clean tools and boots after the job. Administrative Keep vaccinations such as tetanus and hepatitis A up to date, on medical advice. Administrative Wear waterproof gloves, goggles or a face shield, and coveralls. PPE	Low
3	Open up the wall or floor to reach the pipe, checking for asbestos first	Disturbing asbestos General dust Injury from power tools	Critical	Get an asbestos survey before work on buildings built before 1990. Elimination Seal off the work area and keep everyone else out. Engineering (guarding) If asbestos must be disturbed, keep it wet, use hand tools not power tools, and clean up with a HEPA vacuum. Engineering Follow your province's asbestos rules, including notification and trained or certified workers where required. Administrative In BC, a qualified person must inspect and write a hazardous materials report before demolition or renovation, and asbestos abatement must be done by a WorkSafeBC licensed contractor (since 1 January 2024). Administrative Stop work straight away if you find suspect asbestos. Do not touch it and tell your supervisor. Administrative Wear a fit-tested respirator suited to the work, and disposable coveralls. PPE Use low-dust products, such as dust-reduced or pre-mixed compounds. Substitution Seal off the work area with plastic sheeting in occupied buildings. Engineering (guarding) Use tools with dust extraction and a vacuum for clean up. Engineering Lightly mist the area with water to keep dust down, away from anything electrical. Engineering Never dry sweep or blow dust off with compressed air. Administrative Keep all guards fitted and working. Never tie back or remove a guard. Engineering Clamp or secure the work piece. Do not hold it by hand. Engineering Only trained, competent people use power tools, following the maker's instructions. Administrative Check tools before use. Unplug or remove the battery before changing blades or bits. Administrative No loose clothing, jewellery or long hair near spinning parts. Administrative	Medium
4	Cut out the damaged section and fit the repair, with a hot work permit if soldering	Fire from hot works Burns from hot surfaces Cuts from sharp edges	Critical	Use cold work methods where you can, such as bolting, press fittings or cutting with a saw instead of a torch. Elimination Move anything that can burn at least 10 metres away, or cover it with fire blankets. Engineering (guarding) Use fire-resistant screens to stop sparks reaching people or gaps in walls and floors. Engineering Get a hot work permit before starting. Administrative Keep a charged fire extinguisher and fire blanket at the work spot. Administrative Isolate heating systems and let parts cool before you touch them. Elimination Fit guards or insulation on hot pipes and equipment. Engineering Mark hot items with chalk or a "HOT" sign so others know. Administrative Keep a first aid kit and cool running water nearby for burns. Administrative Wear heat-resistant gloves and long sleeves. PPE Deburr or cover sharp edges, and fit edge protectors on exposed sheet metal. Engineering Use knives with retractable or self-retracting blades. Engineering Cut away from your body and keep your other hand clear. Administrative Put used blades in a blade bin or sharps container. Administrative Use two people to handle large sheets of metal or glass. Administrative	Medium
5	Turn water back on and check for leaks under pressure	Pressure testing Hot water and steam	Medium	Test with water instead of air or gas where the system allows it. Never put water in refrigerant pipework, which is tested with dry nitrogen. Substitution Keep people out of the test area with signs and barriers. Engineering (guarding) Use a calibrated gauge and a relief valve set to protect the system. Engineering Test to the pressure the system calls for and hold it for the set time. Never go over. Administrative Release the pressure fully before tightening anything or fixing leaks. Administrative Wear safety glasses or a face shield. PPE Turn the system off and let it cool before work. Elimination Isolate and lock off the heat source and valves, and release the pressure. Engineering (guarding) Check the temperature, and open fittings slowly while facing away. Administrative Keep a first aid kit and cool water ready for burns. Administrative Wear heat-resistant gloves, long sleeves and a face shield. PPE	Low
6	Dry the area, clean up and advise on make good	Slips and trips Poor housekeeping and waste	Medium	Plan walkways and keep them clear of materials, hoses and leads. Elimination Run leads and hoses overhead on hooks or stands, or along walls, not across walkways. Engineering Fill or cover holes, and lay boards or mats on muddy access paths. Engineering Clean up offcuts, packaging and spills as you go, not at the end of the day. Administrative Keep work areas, stairs and access paths well lit. Administrative Wear safety boots with good grip, laced up. PPE Order materials to size and send packaging back where you can. Elimination Put waste bins and chutes close to the work. Engineering Clean as you go, and do a full clean up at the end of each day. Administrative Keep exits, stairs and walkways clear at all times. Administrative Stack materials neatly on level ground, away from edges. Administrative Wear gloves when handling waste. PPE	Low

PPE

CSA green triangle safety boots (CSA Z195)Work glovesSafety glasses (CSA Z94.3)N95 respiratorRespirator fit tested to CSA Z94.4 (P100 for dust, or the type the air test calls for)Safety gogglesCoverallsChemical-resistant glovesFace shieldHearing protectionWelding glovesCut-resistant gloves

Plant and equipment

Hand toolsPress fitting toolPower drillPropane torch

Permits and plans

Hot work permit

Emergency

Call 911. Add the nearest hospital, the muster point and the first aid attendant for your site.

Sign-off

Supervisor and every worker sign to confirm they have read and understood this FLHA, then sign off at the end of the shift.

Free FLHA template for burst pipe repair

Word (.docx) and PDF, Letter landscape, no email needed. Fill in your site details, then print or send it.

Word template (.docx)PDF template

Make yours in 2 minutes

Same document, filled in for your job. Answer a few yes or no questions, the crew signs on the phone, and you send the PDF.

Start this FLHA

Pre-start checklist for burst pipe repair

Tick these off before work starts. They come from the hazards, permits and equipment in this job.

FLHA read, explained and signed by everyone on the job
Asbestos register or survey checked for the work area
Hot work permit issued, extinguisher at hand, fire watch arranged
First aid attendant, first aid kit and emergency number (911) confirmed
PPE checked and worn: CSA green triangle safety boots (CSA Z195), work gloves, safety glasses (CSA Z94.3), N95 respirator

The safe sequence of work

Shut off water at the main and isolate power anywhere water has reached
Check for mould and sewage contamination in wet areas
Open up the wall or floor to reach the pipe, checking for asbestos first
Cut out the damaged section and fit the repair, with a hot work permit if soldering
Turn water back on and check for leaks under pressure
Dry the area, clean up and advise on make good

Hazards to watch on burst pipe repair

The hazards most specific to this job, and the step where each one comes up.

Step 5Hot water and steamOpening hot water systems, boilers or steam lines scalds workers.

Step 2Mould and droppingsWater-damaged buildings, bird and rat droppings and dead animals hold mould and germs that cause breathing problems and infections.

Step 2Sewage and wastewaterContact with sewage spreads germs that cause stomach illness, hepatitis and skin infections.

Step 4Burns from hot surfacesTouching hot pipes, tools, bitumen, solder or freshly welded metal burns the skin.

Step 5Pressure testingA pipe, fitting or cap fails under test pressure and blows apart, hitting people nearby.

Step 4Fire from hot worksSparks and heat from welding, grinding or flame torches set fire to timber, insulation, rubbish or fuel nearby.

Highest risk on burst pipe repair: Critical before controls (B), down to Medium after controls (A), on the Canada 5 by 5 risk matrix (possible and fatality becomes unlikely and lost time injury).

What changes on your site

This example covers the job itself. Your site may add more. Add controls for any of these that apply (the builder asks you these as yes or no questions):

Could anyone fall 3 metres or more, or fall any distance into machinery, water, a hazardous substance or through an opening?
Will anyone use a ladder or stepladder?
Will anyone work on a roof?
Is there a fragile roof, skylight or clear roof sheet?
Will you use a scaffold or mobile tower?

Why FLHAs get rejected

Prime contractors and COR auditors send documents back for these reasons. This example avoids them, but check yours too.

End of shift boxes already say "None" when the form was signed at the start of the shift.
One FLHA reused for days or weeks, or a "review by" date a month away, when the work and conditions change daily.
No time of assessment and no record of any revision, which Alberta s.7(3) requires.
Workers signed that they "read" it, but nothing shows they took part, which Alberta s.8(1) requires.
Work at height with no fall protection plan where the province requires one, or no written rescue procedure for workers using fall arrest.
Permits or locates required on site but no permit or ticket numbers recorded.
No re-assessment entry after an obvious change such as weather, a new task or a new crew member.

Rules by province for burst pipe repair

Province or territory	Key local rule	Regulator
Ontario	Fall protection (O. Reg. 213/91 s.26) applies at a fall of more than 3 m, more than 1.2 m where the work area is used as a path for a wheelbarrow or similar equipment, and at any height into operating machinery, water or other liquid, a hazardous substance, or through an opening.	Ontario Ministry of Labour, Immigration, Training and Skills Development
British Columbia	Fall protection is required where a fall of 3 m or more may occur (s.11.2). A written fall protection plan is required at 7.5 m or more where there are no permanent guardrails (s.11.3).	WorkSafeBC
Alberta	A hazard assessment must be done before work begins, and before a new work site is built (OHS Code s.7(1)). The results must be written down with the controls (s.7(2)).	Alberta Occupational Health and Safety
Quebec	Guardrails (Safety Code s.2.9.1, as amended by Decret 63-2025) are needed where a worker could fall into liquid or a hazardous substance, onto moving parts or dangerous equipment, 1.2 m or more when using a vehicle, 1.5 m or more when handling a load, and more than 3 m in all other cases.	CNESST (Commission des normes, de l'equite, de la sante et de la securite du travail)
Manitoba	A prime contractor is required whenever more than one employer or self employed person works on the site at the same time (Act s.7).	Manitoba Workplace Safety and Health Branch
Saskatchewan	An occupational health committee is required at 10 or more workers of one employer (Act s.3-22).	Saskatchewan Ministry of Labour Relations and Workplace Safety, OHS Division
Nova Scotia	Workers must be trained in fall protection before using it or working in, supervising or planning work in a fall protection area, with a refresher at least every 3 years (WHSR s.21.19).	Nova Scotia Department of Labour, Skills and Immigration, Safety Branch (OHS)
New Brunswick	Fall protection is needed from 3 m above water or the nearest permanent safe level (Reg 91-191 s.49(1)(a)(i)).	WorkSafeNB
Newfoundland and Labrador	Give written notice to the minister before starting a construction project that will last 30 days or more, with the site, location, type of work and number of workers (Regs s.8).	Government Services, Occupational Health and Safety Division
Prince Edward Island	Fall protection is needed from 3 m above the nearest safe surface or water (Fall Protection Regulations s.2(1)(a)).	Workers Compensation Board of PEI, OHS Division
Yukon	Every employer must do hazard assessments with the committee, representative or workers, and redo them after significant changes or incidents (Regs s.1.03.01).	Yukon Workers' Safety and Compensation Board
Northwest Territories	Fall protection is needed from 3 m, or lower if there is a risk of injury (s.119(1)). Guardrails are needed for falls of 1.2 m to 3 m at permanent work sites (s.119(2)).	Workers' Safety and Compensation Commission (WSCC)
Nunavut	No 911. To reach the RCMP in an emergency, dial your community's first three digits then 1111 (Iqaluit: 979-1111). Put the local fire, ambulance and RCMP numbers on every FLHA.	Workers' Safety and Compensation Commission (WSCC)

Questions

Do I need an FLHA for burst pipe repair?

Who signs the FLHA?

The supervisor and every worker take part in the assessment and sign on before work starts, then sign off at the end of the shift. Review it and re-sign whenever the task or conditions change.

How long do I keep it?

Keep completed hazard assessments for at least 3 years (COR auditors sample the last 12 months). Review this FLHA and re-sign whenever the task, crew or conditions change.

What PPE is needed for burst pipe repair?

Usually CSA green triangle safety boots (CSA Z195), Work gloves, Safety glasses (CSA Z94.3), N95 respirator, Respirator fit tested to CSA Z94.4 (P100 for dust, or the type the air test calls for), Safety goggles, Coveralls, Chemical-resistant gloves, Face shield, Hearing protection, Welding gloves, Cut-resistant gloves. The site rules may add more, so check with the general contractor.

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Blank FLHA template: free FLHA templates. Also for other countries: Australia (SWMS) · United Kingdom (RAMS) · United States (JHA)