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Excavation and earthworks · Australia

SWMS for stormwater drainage installation

By Safety PaperworkBuilt from Safe Work Australia and state regulator guidance · How we write and check theseUpdated

Yes. Stormwater drainage installation usually includes high risk construction work (work in an area with movement of powered mobile plant), so a SWMS is required by law before work starts.

It must list the hazards, the controls and how they will be put in place, monitored and reviewed, and the workers must be consulted and sign before starting. The main hazards are silica dust from concrete, brick, stone and tiles, hitting underground services, trench or excavation collapse and being hit by mobile plant.

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SWMS example: stormwater drainage installation

This is a complete SWMS for stormwater drainage 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.

Safe Work Method Statement (SWMS)
Install stormwater drainage · Excavation and earthworks · Example
Document SWMS-001 · Rev 1

High risk construction work covered

Work in an area with movement of powered mobile plant

Job steps, hazards and controls

#Job stepHazardsRisk beforeControlsRisk after
1Get BYDA plans and mark the pipe run
  • Hitting underground services
Extreme
  • Keep machine buckets well clear of marked services and use a spotter. Isolate
  • Scan the area with a cable locator before digging and mark services on the ground. Engineering
  • Hand dig or vacuum excavate to expose services before using a machine near them. Engineering
  • Lodge a free BYDA (Before You Dig Australia) request and get the plans before any digging. 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
2Cut hard surfaces with water suppression
  • Silica dust from concrete, brick, stone and tiles
  • Saw cuts and kickback
  • Loud noise
Extreme
  • If the job involves engineered stone: do not supply, fabricate or install engineered stone benchtops, panels or slabs (banned since 1 July 2024). Removing, repairing or making minor changes to existing engineered stone is only allowed with water suppression or on-tool extraction, a fitted respirator, and written notice to the regulator before the work starts. Eliminate
  • Order materials cut to size, or use low-dust methods such as score and snap or a block splitter. Substitute
  • Cut outdoors or in a separate area, with other people well away and upwind. Isolate
  • Use water on the blade or on-tool dust extraction connected to an H-class vacuum. Engineering
  • Clean up with a vacuum or wet methods. Never dry sweep or use compressed air. Administrative
  • If the cutting, grinding or drilling is high risk, prepare a silica risk control plan (or include the r.529CA assessment in this SWMS), train workers in silica risks and give them the plan before work starts. Administrative
  • Wear a fit-tested P2 (or better) respirator. PPE
  • Keep blade guards fitted and working, and use the riving knife on table saws. Engineering
  • Use push sticks and clamps, and support long pieces so they do not pinch the blade. Engineering
  • Use a sharp, undamaged blade made for the material. Administrative
  • Stand to one side of the blade line, out of the kickback path. Administrative
  • Let the blade stop fully before reaching in or putting the saw down. Administrative
  • Use quieter tools and methods, such as cut-to-size materials, low-noise machines and battery tools. Substitute
  • Keep noisy plant away from work areas, and use screens or distance between the noise and people. Isolate
  • Keep tools maintained and use mufflers on compressors and generators. Engineering
  • Limit time on noisy tools and rotate workers. Administrative
  • If you have to shout to be heard 1 metre away, wear hearing protection. Administrative
  • Keep exposure below 85 dB(A) over 8 hours. Give hearing tests to workers who often need hearing protection. Administrative
Medium
3Dig the trench and pits, protecting edges
  • Trench or excavation collapse
  • Being hit by mobile plant
  • Falling through a floor opening or void
Extreme
  • Use methods that keep people out of the trench, such as directional boring or working from the surface. Eliminate
  • Barricade or cover the excavation so people and plant cannot fall in. Isolate
  • Shore, bench or batter the walls of any trench 1.5 metres deep or more before anyone goes in, unless a geotechnical engineer advises in writing that the sides are safe. Engineering
  • Keep spoil, materials and plant at least 1 metre back from the edge. Engineering
  • Provide a safe way in and out, such as a ladder near where people work. Engineering
  • Inspect the excavation at the start of each shift and after rain or anything that could weaken it. Record it. Administrative
  • Separate people and plant with barriers, exclusion zones and marked walkways. Isolate
  • Use plant with working reversing alarms, cameras and lights. Engineering
  • Have a traffic management plan showing plant routes, loading areas and pedestrian paths. Administrative
  • Use a spotter when reversing or working near people. Administrative
  • Make eye contact with the operator before going near. Stay out of the swing radius. Administrative
  • Cover every hole and penetration with a fixed, secured cover marked "HOLE" or "DANGER". Isolate
  • Put guardrails with toe boards around stairwells, lift shafts, voids and open edges. Isolate
  • Install stairs early and fit temporary handrails as soon as they go in. Engineering
  • Never remove a cover or guardrail without approval. Put it back straight away. Administrative
  • Inspect covers and barriers daily and after other trades have been through. Administrative
Medium
4Lay pipe to grade and set pits
  • Lifting and carrying heavy loads
  • Hazardous chemicals
High
  • Plan to avoid carrying: have materials delivered, and old items picked up, as close as possible to where they are used. Eliminate
  • Use lighter or smaller loads: order smaller bags and shorter lengths, and drain or break down old items before moving them. Substitute
  • Use trolleys, pallet jacks, hoists, vacuum lifters or plant 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
  • Choose the least harmful product that does the job, for example water-based instead of solvent-based. Substitute
  • Use chemicals in well-ventilated areas, or use fans and extraction in closed rooms. Engineering
  • Read the Safety Data Sheet (SDS) before use and keep a register of hazardous chemicals on site. 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
5Backfill, compact and reinstate surfaces
  • Hand-arm and whole-body vibration
  • Loud noise
  • Poor housekeeping and waste
High
  • Use low-vibration tools and methods, such as a breaker on an excavator instead of a hand jackhammer. Substitute
  • Keep tools sharp and well maintained, and use anti-vibration handles and seats. Engineering
  • Limit trigger time on high-vibration tools and rotate workers. Administrative
  • Keep hands warm and dry, and take regular breaks. Administrative
  • Report tingling, numbness or white fingers early. Administrative
  • Wear earplugs or earmuffs rated for the noise. PPE
  • Loud noise: see step 2 for the full controls Administrative
  • Order materials to size and send packaging back where you can. Eliminate
  • Put skip bins and waste 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
Medium

PPE

Steel cap bootsHi-vis shirt or vestSafety glassesWork glovesHearing protection (earmuffs or plugs)Half-face respirator (P2 or P3 filters)P2 dust maskHard hatChemical-resistant gloves (nitrile)Safety gogglesOveralls

Plant and equipment

Excavator: Verification of competency (VOC) for the machineWacker plateHand toolsConcrete saw

Permits and plans

Excavation / dig permit

Emergency

Call 000. Add the nearest hospital, the assembly point and the first aider for your site.

Sign-off

Supervisor and every worker sign to confirm they have read and understood this SWMS.

Free SWMS template for stormwater drainage installation

Word (.docx) and PDF, A4 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 SWMS

Pre-start checklist for stormwater drainage 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 BYDA plans and mark the pipe run
  2. Cut hard surfaces with water suppression
  3. Dig the trench and pits, protecting edges
  4. Lay pipe to grade and set pits
  5. Backfill, compact and reinstate surfaces

Hazards to watch on stormwater drainage installation

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

Step 3Trench or excavation collapseThe trench walls cave in and bury or crush a worker. Trenches 1.5 metres deep or more must be shored, benched or battered unless a geotechnical engineer advises in writing that the sides are safe.
Step 5Hand-arm and whole-body vibrationLong periods on jackhammers, grinders, compactors or riding plant cause white finger, numbness and back damage.
Step 1Hitting underground servicesDigging, drilling or driving pegs hits a buried power cable, gas pipe or water main, causing electrocution, explosion or flooding.
Step 3Falling through a floor opening or voidA worker steps into an open hole, stairwell, lift shaft or penetration and falls to the level below.
Step 3Being hit by mobile plantExcavators, loaders, telehandlers and trucks run over or crush workers, especially when reversing or slewing.
Step 2Saw cuts and kickbackCircular saws, drop saws and table saws cut fingers and hands or throw material back at the user.
Almost certainLikelyPossibleUnlikelyRareHow bad it could be: Insignificant to CatastrophicBA
Highest risk on stormwater drainage installation: Extreme before controls (B), down to Medium after controls (A), on the Australia 5 by 5 risk matrix (likely and catastrophic becomes unlikely and major).

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):

  • Will anyone work more than 2 metres off the ground?
  • Will anyone use a ladder or stepladder?
  • Will anyone work on a roof?
  • Is there a skylight, clear sheet, fibro or other fragile roofing?
  • Will you use a scaffold or mobile tower?

Licences and legal requirements in Australia

This task can involve these high risk construction work categories under the WHS Regulations:

  • Work in an area with movement of powered mobile plant

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

  • Excavator: Verification of competency (VOC) for the machine

A SWMS must be prepared before any high risk construction work starts. It must list the high risk work, the hazards and risks, the control measures, and how those controls will be put in place, monitored and reviewed. It must be easy for the workers to read and understand.

Rules that apply: WHS Regulations, Chapter 8A (Crystalline silica substances and engineered stone); WHS Regulation 2011, Part 4.1 Noise; WHS Regulations, Part 6.3 Division 3 (Excavation work, r.304 to 306); WHS Regulation 2011, Part 5.1 Plant; WHS Regulation 2011, Part 4.4 Falls; WHS Regulation 2011, Part 4.2 Hazardous manual tasks; WHS Regulation 2011, Chapter 7 Hazardous chemicals.

Each state has its own regulator and some extra rules: New South Wales, Victoria, Queensland, Western Australia, South Australia and Australian Capital Territory.

Why SWMS get rejected

Principal contractors send documents back for these reasons. This example avoids them, but check yours too.

  • It is generic: another site address, tasks that are not on this job, or no sign it was reviewed for this site. WorkSafe WA says a generic SWMS may not meet the regulations unless it is reviewed and amended for the workplace.
  • The HRCW boxes are not ticked, or the ticks do not match the tasks (for example a roof job with no falls box ticked).
  • Falls are controlled only by "be careful", training or a harness, with no edge protection or scaffold and no reason why higher controls are not reasonably practicable.
  • Workers will clip on to a harness but there is no rescue plan for someone left hanging.
  • The "how controls are implemented, monitored and reviewed" part is missing, or it says the same thing on every row.
  • No worker sign-on, no person responsible for compliance, or a date given to the principal contractor that is before they actually received it.
  • Licence or White Card details are missing for workers operating plant or doing licensed high risk work.

Questions

Do I need a SWMS for stormwater drainage installation?

Yes. Stormwater drainage installation usually includes high risk construction work (work in an area with movement of powered mobile plant), so a SWMS is required by law before work starts.

Who signs the SWMS?

The person conducting the business (PCBU) or their supervisor prepares it with the workers, and every worker doing the high risk work signs to show they were consulted and understand it. Give a copy to the principal contractor before work starts.

How long do I keep it?

Keep this SWMS, and every revised version, until the high risk construction work is finished, where workers and inspectors can see it on site. If a notifiable incident happens during the work, keep it for at least 2 years after the incident.

What PPE is needed for stormwater drainage installation?

Usually Steel cap boots, Hi-vis shirt or vest, Safety glasses, Work gloves, Hearing protection (earmuffs or plugs), Half-face respirator (P2 or P3 filters), P2 dust mask, Hard hat, Chemical-resistant gloves (nitrile), Safety goggles, Overalls. The site rules may add more, so check with the principal contractor.

More excavation and earthworks SWMS

SWMSTrenching10 stepsSWMSFooting Excavation5 stepsSWMSSite Cut6 stepsSWMSPool Excavation8 stepsSWMSPost Hole Boring5 stepsSWMSBackfill and Compaction5 steps

Related jobs in other trades

ConcretingConcrete Cutting and Core DrillingAlso involves hitting underground servicesConcretingConcrete Slab PourAlso involves being hit by mobile plantConcretingFormworkAlso involves being hit by mobile plantDemolitionInternal Strip OutAlso involves hazardous chemicalsTilingWet Area WaterproofingAlso involves hazardous chemicalsRoofingRoof Tile ReplacementAlso involves silica dust from concrete, brick, stone and tiles

Toolbox talks for this job

Toolbox talkSilica DustToolbox talkHearing Protection and NoiseToolbox talkHand-Arm VibrationToolbox talkExcavation and Trench Safety

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

Sources