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Landscaping · Canada

FLHA for irrigation installation

By SiteSortedBuilt from provincial OHS law and CCOHS guidance · How we write and check theseUpdated

Provincial OHS law requires hazards to be assessed and controlled before work starts. A field level hazard assessment (FLHA) for irrigation installation 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 hitting underground services, being hit by heavy equipment, electric shock from live wiring and lifting and carrying heavy loads.

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FLHA example: irrigation installation

This is a complete FLHA for irrigation installation, with 5 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)
Irrigation installation · Landscaping · Example
Document FLHA-001 · Rev 1

Job steps, hazards and controls

#Job stepHazardsRisk beforeControlsRisk after
1Get utility locates and mark trench lines
  • Hitting underground services
Critical
  • Keep machine buckets well clear of marked services and use a spotter. Engineering (guarding)
  • Scan the area with a cable locator before digging and mark services on the ground. Engineering
  • Hand expose or hydrovac services before machine digging inside the locate tolerance zone. Engineering
  • Click Before You Dig: lodge a locate request with your provincial one-call service and wait for the locates. Administrative
  • Follow your province's ground disturbance rules and keep locate sheets on site. Administrative
  • Keep plans or locate tickets on site and check them again if the work area grows. Administrative
  • If you hit a service, stop, get everyone clear, and call the owner and emergency services. Administrative
  • Wear safety boots, gloves and hi-vis when digging. PPE
Medium
2Dig shallow trenches by hand or with a trencher
  • Lifting and carrying heavy loads
  • Being hit by heavy equipment
Critical
  • Plan to avoid carrying: have materials delivered, and old items picked up, as close as possible to where they are used. Elimination
  • Use lighter or smaller loads: order smaller bags and shorter lengths, and drain or break down old items before moving them. Substitution
  • Use trolleys, pallet jacks, hoists, vacuum lifters or equipment instead of carrying by hand. Engineering
  • Use a two-person lift for anything heavy, long or awkward. Plan the route first and clear it. Administrative
  • Keep the load close, back straight and no twisting. Turn with your feet. Administrative
  • Rotate tasks and take breaks on long lifting jobs. Administrative
  • Wear gloves for grip and safety boots to protect your feet. PPE
  • Separate people and equipment with barriers, exclusion zones and marked walkways. Engineering (guarding)
  • Use equipment with working backup alarms, cameras and lights. Engineering
  • Have a site traffic plan showing equipment routes, loading areas and pedestrian paths. Administrative
  • Use a spotter when backing up or working near people. Administrative
  • Make eye contact with the operator before going near. Stay out of the swing radius. Administrative
  • Operators are trained and competent for each machine. Administrative
  • Do a pre-start check on each machine every day and record it. Administrative
  • Wear hi-vis clothing and a hard hat. PPE
Medium
3Lay pipe and glue joints with ventilation
  • Hazardous chemicals
Medium
  • Choose the least harmful product that does the job, for example water-based instead of solvent-based. Substitution
  • Use chemicals in well-ventilated areas, or use fans and extraction in closed rooms. Engineering
  • Read the Safety Data Sheet (SDS) and WHMIS labels before use. Workers have WHMIS training. Administrative
  • Keep chemicals in labelled containers. Never decant into drink bottles. Administrative
  • Store chemicals away from heat, food and drink, and keep products that react with each other apart. Administrative
  • Have eye wash and a spill kit nearby, and wash hands before eating. Administrative
  • Wear chemical-resistant gloves and safety glasses or goggles as listed on the SDS. PPE
  • Use a respirator with the right cartridge if the SDS calls for one. PPE
Medium
4Connect the controller, getting a licensed electrician for any new power
  • Electric shock from live wiring
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
Medium
5Test, backfill and clean up
  • Pressure testing
  • Poor housekeeping and waste
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
  • 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 glovesSun protection (sunscreen, hat, long sleeves)High-visibility vest (CSA Z96)Hard hat (CSA Z94.1)Chemical-resistant glovesSafety gogglesRespirator fit tested to CSA Z94.4 (P100 for dust, or the type the air test calls for)CoverallsSafety glasses (CSA Z94.3)Face shield

Plant and equipment

Hand toolsExcavator: Provincial operator trainingPower drill

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 irrigation installation

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 irrigation installation

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

The safe sequence of work

  1. Get utility locates and mark trench lines
  2. Dig shallow trenches by hand or with a trencher
  3. Lay pipe and glue joints with ventilation
  4. Connect the controller, getting a licensed electrician for any new power
  5. Test, backfill and clean up

Hazards to watch on irrigation installation

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

Step 5Pressure testingA pipe, fitting or cap fails under test pressure and blows apart, hitting people nearby.
Step 1Hitting underground servicesDigging, drilling or driving pegs hits a buried power cable, gas pipe or water main, causing electrocution, explosion or flooding.
Step 2Being hit by heavy equipmentExcavators, loaders, telehandlers and trucks run over or crush workers, especially when reversing or slewing.
Step 3Hazardous chemicalsGlues, sealants, solvents, acids, cleaners and cement burn skin and eyes or cause breathing problems and poisoning.
Step 4Electric shock from live wiringContact with energized wires, electrical panels or equipment gives an electric shock or arc flash burn that can kill.
Step 2Lifting and carrying heavy loadsLifting, carrying, pushing or twisting with heavy or awkward loads strains the back, shoulders or knees.
Almost certainLikelyPossibleUnlikelyRareHow bad it could be: First aid only to FatalityBA
Highest risk on irrigation installation: 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?

Licences and legal requirements in Canada

Equipment on this job that needs a licence, ticket or training:

  • Excavator: Provincial operator training

Employers must identify hazards before work starts and control them, and workers must be told about them. A field level hazard assessment is done on site, at the start of each shift or task, and reviewed again when conditions change.

Rules that apply: WHMIS 2015 and provincial OHS regulation; Provincial OHS regulation, electrical safety, and CSA Z462.

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 irrigation installation

Province or territoryKey local ruleRegulator
OntarioFall 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 ColumbiaFall 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
AlbertaA 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
QuebecGuardrails (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)
ManitobaA 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
SaskatchewanAn 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 ScotiaWorkers 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 BrunswickFall 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 LabradorGive 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 IslandFall 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
YukonEvery 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 TerritoriesFall 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)
NunavutNo 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 irrigation installation?

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

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 irrigation installation?

Usually CSA green triangle safety boots (CSA Z195), Work gloves, Sun protection (sunscreen, hat, long sleeves), High-visibility vest (CSA Z96), Hard hat (CSA Z94.1), Chemical-resistant gloves, Safety goggles, Respirator fit tested to CSA Z94.4 (P100 for dust, or the type the air test calls for), Coveralls, Safety glasses (CSA Z94.3), Face shield. The site rules may add more, so check with the general contractor.

More landscaping FLHAs

FLHARetaining Wall Construction10 stepsFLHAPaving5 stepsFLHATree Removal10 stepsFLHASod Laying5 stepsFLHAFence Installation6 stepsFLHAGarden Maintenance6 steps

Related jobs in other trades

Excavation and earthworksTrenchingAlso involves hitting underground services

Toolbox talks for this job

Toolbox talkPPE: Personal Protective EquipmentToolbox talkClick Before You Dig: Underground ServicesToolbox talkWHMIS and Hazardous ProductsToolbox talkCrane and Lifting Safety

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

Sources