HAZARD IDENTIFICATION RISK ASSESSMENT

Hazard Identification, Risk Assessment (HIRA) mechanism

HIRARC deliverables for activities with significant risk ranking with specific number and/or when legal requirement is applied could become inputs for defining Occupational Health & Safety (OH&S) Objective and Target.

Formally this method provides:

·            Identifying all Hazards/Aspect and Potential Impact/Consequences;

·            Determining the Risk Ranking of each Hazard/Aspect or Potential Impact/Consequences.

·            Determine legal and other requirements references.

·            Defining suitable and sufficient Determine Control measures,

·            Predicting the residual Risk Ranking of the controlled Hazard,

Scope of the HIRARC Mechanism is applied to routine and non-routine activities; the method applies to OH&S risk assessments and is NOT applied to the identification of SIGNIFICANT ENVIRONMENTAL ASPECTS.

                                             Hira Process (Flowchart)

The Risk Assessment considers:

·            Severity of the process has 4 categories: (List detail of severity refers to severity Matrix)

(A) Major (>$200,000);             (B) Serious ($25,000 - $200,000);

(C) Moderate ($500 - $25,000);            (D) Minor (<$500).

·            Likelihood of the process has 4 categories:

(I)                Almost Certain  : many times per year

(II)             Probable                        : one time per year

(III)          Possible             : one time per 5 years

(IV)          Unlikely             : one time per 10 years or more

·            While Risk Ranking is a function of both severity and likelihood (refer to WW Risk Ranking Matrix). Risk Ranking has 4 categories:

1.      Unacceptable (significant aspect): Shall be mitigated with engineering and/or administrative controls o a criticality level of 3 or lower as soon as possible.

2.      Undesirable (significant aspect): Shall be mitigated with engineering and/or administrative controls o a criticality level of 3 or lower as soon as possible.

3.      Acceptable with control (significant aspect): Should be verified that procedures or controls cited are in place

4.      Acceptable as it is (not significant aspect): No mitigation action required

Note: Significant risk = initial risk ranking equivalent to 1, 2 or 3 and/or when legal requirements applied.

 Severity Matrix