Piggery Operations SWMS
SWMS template for piggery operations. Covers Pig handling, effluent, ventilation.. 8-state AU coverage, CIH-reviewed editable DOCX, available as an instant download.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Piggery operations expose workers to a complex matrix of biological, chemical, atmospheric and mechanical hazards that few other agricultural workplaces present in combination. Daily tasks — moving sows between pens, pressure-washing farrowing crates, agitating effluent pits, manually adjusting tunnel ventilation curtains and assisting with veterinary procedures — generate exposure to hydrogen sulphide, ammonia, zoonotic pathogens, crush forces from boars and sows, and confined-space atmospheres in pump-out pits and deep-litter sheds. Under WHS Regulation 2025 and the harmonised model WHS laws, a PCBU operating a piggery has an absolute duty under s19 to eliminate or minimise these risks so far as is reasonably practicable. A Safe Work Method Statement is mandatory where the work meets High Risk Work criteria — confined space entry into effluent pits, work involving hazardous atmospheres, and tasks with risk of serious illness from biological exposure all qualify. This SWMS documents the hazard identification, control hierarchy and worker consultation required before any piggery shift commences.
Hazards identified
7 hazards covered, sorted by priority.
Rapid olfactory fatigue at 100 ppm, pulmonary oedema and fatal respiratory paralysis above 700 ppm within seconds
Chronic respiratory irritation, occupational asthma, corneal damage and accelerated chronic obstructive pulmonary disease in long-term staff
Fractured pelvis, crushed limbs, internal organ damage and fatality from cornering or charging by mature boars
Meningitis, septicaemia, reproductive harm, hepatic failure and notifiable disease transmission to household contacts
Asphyxiation from oxygen-deficient atmospheres, methane explosion and entrapment requiring specialist rescue response
Lumbar disc injury, rotator cuff tears and cumulative musculoskeletal disorders affecting long-term work capacity
Fractures, head injury and secondary exposure to pathogens through open wounds contacting contaminated surfaces
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Remove the need for human entry to effluent pits by installing permanent external pump-out fittings, gantry-mounted agitators and remote sludge level sensors.
- 2Elimination — Replace manual sow movement through narrow races with self-catch farrowing crates and one-way gating that eliminates direct handler contact during transfer.
- 3Substitution — Substitute deep-pit effluent storage with shallow flush systems or daily scrape-and-pump regimes that prevent sulphide stratification and reduce atmospheric accumulation.
- 4Substitution — Replace high-pressure cold washing with low-pressure warm-water systems and enzymatic detergents to reduce aerosol generation of pathogens during shed cleaning.
- 5Engineering — Install continuous mechanical tunnel ventilation interlocked with ammonia and hydrogen sulphide sensors that trigger audible alarms above 10 ppm and 5 ppm respectively.
- 6Engineering — Fit fixed-gas detection with forced extraction at all pit access points and provide tripod-mounted rescue winches for any permitted confined space entry.
- 7Administrative — Implement a confined space entry permit system under AS 2865 with atmospheric testing, standby observer, rescue plan and documented worker training records.
- 8Administrative — Conduct daily pre-start toolbox briefings using this SWMS, enforce vaccination schedules for Q-fever and leptospirosis where indicated, and rotate workers from high-ammonia sheds.
- 9PPE — Provide P2/P3 respirators for cleaning tasks, supplied-air respirators for any pit work, chemical splash goggles, nitrile gloves and dedicated coveralls laundered on-site.
- 10PPE — Issue steel-capped rubber boots with cut-resistant midsoles, hearing protection rated SLC80 26+ for ventilation plant rooms, and impact-rated shin guards for boar handling.
Applicable Codes of Practice
Triggers risk assessment, atmospheric monitoring and exposure standard compliance for ammonia (25 ppm TWA) and hydrogen sulphide (10 ppm TWA) in sheds and pits.
Mandates permit system, atmospheric testing, standby person and rescue arrangements for entry to effluent pits, pump wells and underground transfer sumps.
Requires risk assessment, vaccination consideration and hygiene controls for zoonotic exposures including Brucella suis, Streptococcus suis and leptospirosis.
Specifies fit-testing, cartridge selection and maintenance regimes for P2/P3 and supplied-air respirators used during washdown and pit work.
High-Risk Construction Work triggered
Effluent pit access, pump sump inspection and underground transfer well entry meet the AS 2865 confined space definition with hazardous atmosphere potential.
Hydrogen sulphide release during pit agitation and ammonia accumulation in closed sheds create atmospheres immediately dangerous to life and health.
Direct contact with pigs, birthing fluids, faeces and aerosols presents documented transmission risk for notifiable zoonotic diseases including Q-fever and brucellosis.
PCBUs must prepare, consult workers on, and retain this SWMS for the duration of the work plus two years after a notifiable incident; failure attracts Category 1–3 offences with penalties substantial and indexed annually under the prevailing WHS schedule.
Who this is for
- →Piggery owners and managers operating intensive housing
- →Stockpersons and farrowing shed staff in commercial piggeries
- →Effluent contractors and pump-out operators servicing pig farms
- →Veterinarians and AI technicians attending intensive pig units
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
At a 600-sow farrow-to-finish unit in a temperate Australian region, the leading hand convenes a 06:45 pre-start brief with three stockpersons before the weekly effluent pit agitation and pump-out cycle. The supervisor opens the Piggery Operations SWMS on a ruggedised tablet and walks the team through the hazard register, pausing on hydrogen sulphide release and confined space entry. Atmospheric monitoring readings from the fixed sensors at the pit gallery are reviewed — overnight ammonia averaged 18 ppm and H2S touched 4 ppm, both below action levels but trending upward. The team selects the engineering control of running tunnel fans at maximum draw for forty minutes before agitation begins, and confirms no entry to the pit gallery will occur during the cycle. Supplied-air respirators are checked against the AS/NZS 1716 register, fit-test cards are sighted, and the standby observer is nominated with the rescue tripod pre-rigged at the access hatch. Each worker signs the SWMS sign-on sheet on the tablet. Mid-task, a sensor alarm triggers at 12 ppm H2S near the south pit; the supervisor halts agitation, extends ventilation purge by twenty minutes, and annotates the SWMS field-change log noting the deviation. The amended document is filed in the WHS register before shift end, ready for the next cycle review.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- Managing the Risks of Plant in Rural Workplaces CoP; AS 2789 — Quad bikes