Please read this before using presentation This presentation is based on content presented at the industry information session on risk-based hygiene management planning held in May 2015 It is made available for non-commercial use (e.g. toolbox meetings, OHS discussions) subject to the condition that the PowerPoint file is not altered without permission from Resources Safety Supporting resources, such as brochures and posters, are available from Resources Safety For resources, information or clarification, please contact: or visit 1

Our commitment To work with industry to reduce serious accidents and incidents, and provide tangible support in achieving a positive cultural change. 2

3 Resources Safety’s focus

What is risk-based hygiene management planning and how does it relate to CONTAM? 4

Why the change from CONTAM? CONTAM Was initiated to get sites conducting personal exposure monitoring for certain contaminants – specifically dusts and respirable silica Targeted contaminants known to be present or generated in the majority of Western Australian mining operations 5

Was it risk-based? CONTAM did not require the identification or investigation of exceedances, nor the implementation or effectiveness monitoring of controls didn’t allow for ‒ changes in mining operations and work populations ‒ SEG formation ‒ recognition of health hazards other than particulate- form atmospheric contaminants *SEG = similar exposure groups 6

So what do we need to do now (May 2015)? CONTAM will remain as a results database in the short-term Over the next 12 months, sites will enter their health- and hygiene-related data directly into the Safety Regulation System (SRS) 7

What else do we need to do now (May 2015)? Continue to use the financial year as your time gauge for sampling programs That means, getting ready over the next month for the program 8

Risk-based Hygiene Management Plan (RBHMP) Termed management planning to align with the ‘principal hazard management planning’ of the proposed new legislation Being risk-based means: –non-prescriptive –its effectiveness is wholly based on the knowledge, competence, and commitment of the people involved in its development and implementation 9

RBHMP is an opportunity to … work out exactly what is going on in your workplaces What are your personnel actually and potentially exposed to? How are they protected (or not) from those exposures? What needs to be done for their protection in the short-term and long-term? How do you confirm whether you got it right (or not) in relation to control implementation? What do you have in place to continuously monitor and review? 10

What is your role? You have a choice – do it right the first time or don’t Worst thing you can do is to shirk your responsibility by going for something generic, and missing out on an opportunity to identify and manage the health hazards specific to your site 11

Start Workplace characterisation Exposure assessment Acceptable exposure Uncertain Unacceptable exposure Control Further information gathering Monitor and review 12

13 Start

Establish the goals What does your site want to achieve from RBHMP? ─Where is your site in relation to its mine life and maturity of health and hygiene management? Role and responsibility identification ─Depending on the size of your site and its hierarchical structure, you might be doing all things, one thing, or nothing 14

15 Start Workplace characterisation

Characterise your workplace 16 Gather information that will be used to understand the tasks being performed, materials being used, processes being run and controls in place, so that a picture of exposure conditions can be made!

17 Gather workplace information

Break it down 18

Break it down further! 19

Include ‘the forgotten’ Is there haulage? Is exploration happening? Is rehabilitation happening? Is there an airstrip? Is there an accommodation village? 20 Gather workplace information

Gather workforce information Use a variety of resources: Rosters Job descriptions Worker interviews OBSERVATION 21

Gather health hazard information Consider each potentially hazardous agent: Physical ─Noise ─Vibration ─Radiation ─Temperature (heat or cold) ─Ergonomics Chemical Biological 22

Health effects information The information you define here will assist with identifying whether an exposure is acceptable or unacceptable Toxicology and/or health impact potential Acute versus cumulative OELs and BEIs (and adjustment) * OEL = Occupational exposure limit * BEI = Biological exposure index 23

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25 Start Workplace characterisation Exposure assessment

Exposure assessment – Define SEGs 26 Steps to defining SEGs: 1.Observation Classification by task and environmental agent Classification by task, process and environmental agent Classification by task, process, job description, and environmental agent Classification by work teams Classification by non-repetitive work tasks or jobs

Define SEGs 2.Sampling Relies on the review of previously collected data to classify the workforce Requires sufficient sample data and high degree of statistical confidence Often difficult to do well, particularly where monitoring records are poor and information collected about the sampling environment is sparse A combined observation and sampling approach is the most PRACTICAL method of defining a SEG 27

Exposure assessment – exposure profiles Summarises and judges exposures to health hazards in the workplace Combine information from the basic characterisation with the SEG information Exposure rating – use your site criteria –Estimate of exposure relative to the OEL –Considers monitoring data, surrogate data, prediction 28

Start Workplace characterisation Exposure assessment Acceptable exposure Uncertain Unacceptable exposure Control Further information gathering Monitor and review 29

Exposure profile - acceptability Acceptable? Unacceptable? Uncertain? 30 AcceptableUnacceptable / Uncertain

Managing uncertainty and unacceptability - Sample number determination Let’s talk about: Confidence limits Baseline versus maintenance versus campaign Quarterly numbers Random selection 31 N (size of group) ≤ # (number of samples required) (reference: Leidel, Busch and Lynch, 1977, NIOSH)

Results strategy You have to know from the start what you are going to do in the event that: You receive an anomalous result or exceedance Your baseline data confirms acceptable or unacceptable exposures Your baseline data confirms SEG unacceptability Your maintenance data contradicts baseline 32

SEG acceptability Confirmation of SEG by statistical analysis Review and redefining the SEG where necessary 33

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Controls The list provided in the procedure does not represent all health hazards and associated controls, and should only be used as an example … and what about monitoring and review? 35

RBHMP approval, re-assessment and quota proposal What do you do when you have generated a RBHMP document? When should you review and update it? And what about the sampling numbers? Contact if you need to know the answers to these 36

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