The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:

knowledge of the requirements, procedures and instructions for assisting with coal seam gas control

implementation of requirements, procedures and techniques for the safe, effective and efficient assisting with coal seam gas control

working with others to undertake and complete coal seam gas control that meets all of the required outcomes

consistent timely provision of assistance with coal seam gas control that safely, effectively and efficiently meets the required outcomes

Context of and specific resources for assessment

This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.

The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.

Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.

Aboriginal people and other people from a non English speaking background may have second language issues.

Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances.

Where applicable, physical resources should include equipment modified for people with disabilities.

Access must be provided to appropriate learning and/or assessment support when required.

Method of assessment

This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:

written and/or oral assessment of the candidate's required knowledge

observed, documented and/or first hand testimonial evidence of the candidate's:

implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes

consistently achieving the required outcomes

first hand testimonial evidence of the candidate's:

working with others to undertake and complete the coal seam gas control

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.

Required skills

Specific skills are required to achieve the performance criteria in this unit, particularly for the application in the various circumstances in which this unit may be applied. This includes the ability to carry out the following as required to assist with coal seam gas control:

apply legislative, organisation and site requirements and procedures

work in a team

apply gauge and graph interpreting skills

apply work instruction and procedures interpreting skills

apply process status recording and reporting procedures

use hand and power tools

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit, particularly its application in a variety of circumstances in which the unit may be used. This includes knowledge of the following, as required to assist with coal seam gas control:

the principles and practices of coal seam gas control

control procedures

risks and their controls

sources of ignition and their dangers and controls

sources of flammable gases and emissions and their dangers and controls

pumping systems principles

purpose, operation and interpretation of measuring and testing devices

kick detection warnings and indications and the responses to them

purpose, type and conduct of emergency drills and exercises

communication methods and protocols

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Relevant compliance documentation may include:

legislative, organisational and site requirements and procedures

manufacturer's guidelines and specifications

Australian standards

code of practice

Employment and workplace relations legislation

Equal Employment Opportunity and Disability Discrimination legislation

Work instructions may come from briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include:

nature and scope of tasks

specifications

quality of finished works

achievement targets

operational conditions

obtaining of permits required

site layout

out of bounds areas

worksite inspection requirements

lighting conditions

plant or equipment defects

hazards and potential hazards

coordination requirements or issues

contamination control requirements

environmental control requirements

barricade and signage requirements

Coordination requirements may include

drill team

other equipment operators

maintenance personnel

supervisors

worksite personnel

Measuring devices may include:

2-way radio

hand signals

telephone

public address system

written work instructions

Drills and exercises may include:

pit drill

trip drill

abandonment drill

evacuation

Hazards may include:

blow out gas to surface

ignition of gas

toxic gases

pressurised coal seam gas system

Working conditions may include:

night time operations

day time operations

hot climates

cold climates

snow

wet weather conditions

high wind

Kick indicators may include:

flow from wells (pump off)

increase in flow from well (pumps on)

pit volume gain

Ignition sources may include:

non-explosion protected devices such as:

electrical connections/leads

rig lights and wiring

flashlights

computers

mobile phones

electronic car keys

charging circuits from solar panels

charging and starting circuits from vehicles

drill rigs

mud pumps

lighting plants

auxiliary equipment

static discharge - lightning

flare stacks

engine exhausts from vehicles, drill rigs, auxiliary equipment

Flammable gases and emissions may include:

methane (CH4)

hydrogen sulphide (H2S)

carbon dioxide (CO2)

carbon monoxide (CO)

Coal seam gas control equipment may include:

mud system

blooie diverter lines

auxiliary equipment

pressure measuring devices

gas detection equipment and devices

diverters