Boom Spray / Crop Spraying SWMS
SWMS template for boom spray / crop spraying. Covers Mixing, calibration, boom application. 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.
Boom spray and broadacre crop spraying operations expose operators, ground crew and bystanders to acute and chronic chemical risk through mixing concentrated agrochemicals, calibrating nozzles under pressure, and applying schedule 5, 6 and 7 products across paddocks where wind, terrain and fatigue all shift hazard levels hour by hour. Under WHS Regulation 2011 (and the harmonised state instruments) a Person Conducting a Business or Undertaking has a non-delegable duty to identify chemical, plant and environmental hazards, consult with workers, and document control measures before work commences. A Safe Work Method Statement is mandatory whenever the activity involves hazardous chemicals at quantities triggering the Hazardous Chemicals Register, work near energised overhead lines, or use of mobile plant on uneven ground. This SWMS template provides a CIH-reviewed, editable framework covering mixing, calibration and boom application, aligned to AS/NZS 2210 footwear, AS/NZS 1715/1716 respiratory protection, and the APVMA-endorsed product label as the primary legal instruction.
Hazards identified
7 hazards covered, sorted by priority.
Acute organophosphate or sulfonylurea poisoning, cholinesterase depression, hospitalisation and prosecutable WHS breach
Environmental prosecution under state EPA Act, civil damages claim, APVMA label breach and chemical use licence suspension
Electrocution of operator, arc flash burns, fatality and Energy Safe regulator investigation against PCBU
Microsleep rollover of self-propelled rig, fatal crush injury, breach of fatigue management duty under WHS Reg
Eye chemical burns, corneal scarring, permanent partial vision loss and notifiable incident under WHS s38
Operator crush injury, fuel spill, chemical tank rupture and major environmental contamination event
Heat exhaustion progressing to heat stroke, collapse in isolated paddock, delayed rescue and fatality risk
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Eliminate manual decanting by specifying closed-transfer systems (CTS) or returnable shuttles for all schedule 6 and 7 products under AS 2507.
- 2Elimination — Eliminate spray-window pressure by scheduling applications outside critical neighbour-sensitive periods and removing energised overhead spans from the spray block where feasible.
- 3Substitution — Substitute high-volatility ester formulations with amine or low-volatile salts during temperature inversion risk periods per APVMA spray-drift guidance.
- 4Substitution — Substitute conventional flat-fan nozzles with air-induction low-drift nozzles rated by the Spray Drift Reduction Technology register to reduce driftable fines.
- 5Engineering — Engineer cabin protection using a Category 4 pressurised filtered cab compliant with EN 15695-1, with charcoal filter change logged per AS/NZS 1715.
- 6Engineering — Engineer bund containment around the chemical mixing pad with sealed concrete, eyewash and emergency shower meeting AS 4775 within 10 seconds travel.
- 7Administrative — Administrative — Verify Delta-T, wind speed 3-15 km/h and inversion conditions using calibrated weather meter and record on spray diary per state Control of Use legislation.
- 8Administrative — Administrative — Implement fatigue management with maximum 12-hour shift, mandated 30-minute breaks and two-way radio check-ins every 90 minutes during solo paddock work.
- 9PPE — Issue chemical-resistant nitrile gauntlets, AS/NZS 1336 indirect-vent goggles and AS/NZS 1716 A1P2 respirator for all mixing and loading tasks per product label.
- 10PPE — Provide coated Type 4 chemical coveralls to EN 14605, AS/NZS 2210.3 chemical-resistant boots, and dedicated laundering separate from domestic clothing.
Applicable Codes of Practice
Mandates SDS access, register maintenance, exposure standard compliance and health monitoring for organophosphate exposure under WHS Reg r368-r372.
Specifies fit-testing, cartridge selection (A1P2 minimum for agrochemicals) and maintenance regime triggered by mixing concentrated schedule 7 products.
Sets bunding, separation, ventilation and signage requirements for on-farm chemical sheds storing mixing inventory above placard quantities.
Applies to access onto boom catwalks, tank-top filling platforms and self-propelled sprayer cabins above 2m under WHS Reg r78.
High-Risk Construction Work triggered
Mixing and applying schedule 6 and 7 agrochemical concentrates places workers in direct exposure to APVMA-restricted poisons during decant and boom application.
Spray drift, vapour from inversion conditions and aerosol during boom operation generate airborne contaminants exceeding workplace exposure standards without controls.
Solo operation of self-propelled sprayers over 12-hour shifts on remote paddocks meets the fatigue-critical isolated work threshold under state WHS schedules.
PCBU must consult workers, document the SWMS, retain it for two years (or until incident closeout), and provide health monitoring; penalties are substantial and indexed annually to the prevailing WHS schedule.
Who this is for
- →Broadacre grain and cotton spray operators
- →Agricultural contracting businesses running boom rigs
- →Farm managers supervising seasonal spray crews
- →Horticultural enterprises applying registered agrochemicals
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 2,400-hectare winter cropping enterprise, a spray supervisor convenes the pre-start brief at 4:30am beside the chemical shed before a glyphosate plus paraquat double-knock application. Using this SWMS as the working document, the supervisor walks the two operators through the hazard register, flagging that paraquat is schedule 7 and triggering the closed-transfer mixing control rather than the previous jug-and-funnel method. The Delta-T meter reads 4.2 with a 6 km/h southerly, inside the label envelope, so the team signs the weather observation panel of the SWMS. One operator raises that the eastern boundary paddock has an 11kV overhead span — the supervisor cross-references the powerline control row, marks the headland as a boom-down zone on the paddock map attached to the SWMS, and both operators initial the amendment. Mid-morning, wind shifts to 18 km/h gusting. The lead operator stops the rig, radios in, and the team formally suspends work using the dynamic-review section of the SWMS, recording time, weather data and resumption conditions. When spraying resumes at 3pm under improved conditions, the SWMS amendment is re-signed. The completed document is filed to the chemical use diary that evening, satisfying both WHS record-keeping and state Control of Use Act traceability.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- Managing the Risks of Plant in Rural Workplaces CoP; AS 2789 — Quad bikes