1. Confined spaces
What all agricultural workers need to know

2. What is a confined space?
Enclosed
Worker can get inside
Not intended for occupancy
Difficult to evacuate or rescue 2

3. Grain bins Toxic gases Low oxygen Engulfment (by grain)
Bacteria and moulds
Mechanical equipment (augers) 3

4. Milk tank Mechanical parts (cleaning wands, agitators)
Toxic gas (from cleaning chemicals) 4

5. Manure pond Toxic gases Low oxygen Drowning Bacteria and moulds
Moving machinery (agitators and pumps) 5

6. Open-top water tanks Toxic gases Low oxygen Drowning
Bacteria and moulds
Cleaning chemicals 6

7. Closed additive tanks Toxic gases Low oxygen Drowning
Bacteria and moulds
Cleaning chemicals 7

8. Boilers
Asbestos
Silica dust
Hot surfaces
Welding fumes 8

9. Brown water tank Toxic gases Low oxygen Bacteria and moulds
Mechanical equipment (pumps, agitators)
Drowning 9

10. Pump shed Toxic gases Low oxygen Bacteria and moulds
Mechanical equipment
Electrical shock 10

11. Mobile equipment — manure tank
Toxic gases
Low oxygen
Bacteria and moulds
Mechanical equipment
Cleaning chemicals 11

12. Crawl spaces Toxic gases Low oxygen Bacteria and moulds
Vermin (spiders, snakes) 12

13. Storm water manholes Toxic gases Low oxygen Bacteria and moulds
Drowning 13

14. Sanitary – septic tanks
Toxic gases
Low oxygen
Bacteria and moulds
Drowning 14

15. Valve boxes / chambers
Toxic gases
Low oxygen
Bacteria and moulds 15

16. Bunkers Toxic gases Low oxygen Bacteria and moulds Engulfment (burial)16

17. Auger tunnels Toxic gases Low oxygen Bacteria and mould
Vermin (spiders and snakes)
Mechanical Equipment 17

18. Sanitary pump/lift stations
Toxic gases
Low oxygen
Bacteria and moulds
Drowning
Electrocution 18

19. Well pits Toxic gases Low oxygen Drowning (if flooded) Electrocutio n19

20. Do not enter even to rescue someone, unless you have been trained
Keep out
Do not enter even to rescue someone, unless you have been trained
Talk to your employer or supervisor 20

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