ELEMENT

PERFORMANCE CRITERIA

1. Plan and prepare for constructing monitoring bores

1.1. Access, interpret and apply compliance documentation relevant to the work activity

1.2. Discuss scope of work with client to gain general agreement on drilling plan, including method of drilling, construction detail and materials to be used, and development requirements

1.3. Apply work instructions for the allocated task

1.4. Identify, manage and report all potential hazards, including any contaminants that may be encountered during drilling

1.5. Resolve coordination requirements with others at the site prior to commencing and during work activities

1.6. Regularly communicate up to date information on progress, geology and/or problems encountered, to client and/or other relevant parties

2. Construct monitoring bores

2.1. Use approved procedures to assemble and insert casing and screens

2.2. Use equipment for assembly safely and in accordance with approved procedures

2.3. Place artificial pack material in a manner so as to ensure uniform distribution in the annular space without bridging

2.4. Construct bore in accordance with applicable regulations and standard bore construction procedures

2.5. Demonstrate a knowledge of basic geological data

2.6. Accurately calculate basic numerical tasks

2.7. Maintain records accurately and legibly

2.8. Label and secure the well

2.9. Complete a construction diagram showing all details of the construction

2.10. Read and interpret a range of documents, including plans, diagrams and logs to determine the appropriate design for the monitoring well

2.11. Measure and record Standing Water Level

3. Purge bores

3.1. Use development techniques with care to prevent collapsing of casing or screens

3.2. Use a range of development techniques to improve hydraulic transmissivity around the bore

4. Disinfect/decontaminate bore and drilling equipment

4.1. Ensure disinfection/decontamination complies with relevant standards or regulatory requirements

4.2. Handle chemicals in accordance with manufacturer's recommendations

4.3. Use appropriate personal protective equipment

5. Decommission test holes

5.1. Carry out correct procedures for the decommissioning of test holes in any given type of geological formation and hydrological setting

5.2. Verify properly sealed hole for future reference

5.3. Dispose of drill and other fluids safely

6. Complete and submit required reports

6.1. Submit bore log, signed bore completion report and other written tasks to relevant authorities/client upon completion of the bore

6.2. Log bore holes in accordance with client/regulatory requirements

6.3. Locate bores according to instruction and provide sketches to regulatory authorities

Required skills

Specific skills are required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes the ability to carry out the following, as required to construct monitoring bores:

apply legislative, organisation and site requirements and procedures for constructing monitoring bores

interpret and apply occupational health and safety requirements and procedures

interpret site requirements and procedures

interpret work requirements

interpret geological and survey data

apply mechanical and manual handling safety requirements and procedures

cementing and grouting skills

mixing and placing concrete

drilling skills using an appropriate method

operation of pressure cleaning equipment

calculation and measurement skills

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes knowledge of the following, as required to construct monitoring bores:

equipment - characteristics, technical capabilities and limitations

basic geological formations, i.e. various formations which permit groundwater movement and factors affecting groundwater quality

characteristics of 'good samples' required for water well construction

ways in which sampling errors can occur

types of muds, their use, and development techniques to remove them from bores

problem solving techniques

grout placement methods and procedures

range of numerical calculations

water sampling techniques and protocols

legislative, site and manufacturer's requirements and procedures

worksite coordination requirements and procedures

site operating techniques and systems

monitoring systems and alarms requirements and procedures

ground preparation requirements and procedures

inspection, fault finding and reporting requirements and procedures

routine operator servicing, maintenance and housekeeping requirements and procedures

site environmental and heritage requirements and constraints

use of diagrams, plans and instructions for positioning, recording work or progress

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 constructing monitoring bores

implementation of requirements, procedures and techniques for the safe, effective and efficient completion of monitoring bore construction

working with others to undertake and complete the construction of monitoring bores that meets all of the required outcomes

consistent timely completion of monitoring bore construction 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.

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

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.

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

consistent achievement of required outcomes

first hand testimonial evidence of the candidate's:

working with others to undertake and complete the construction of monitoring bores

Guidance information for assessment

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

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

achieved targets

operational conditions

obtaining of required permits

site layout

out of bounds areas

worksite inspection requirements

lighting conditions

plant of equipment defects

coordination requirements or issues

contamination control requirements

environmental control requirements

barricade and signage requirements

Hazards may include:

working in proximity to drilling rig

Contaminants may include:

hydrocarbons (MAH's, PAH's)

organic compounds (pesticides)

chlorinated hydrocarbons (dioxins) (PCB)

heavy metals

asbestos

acids

acid sulphate soils

Coordination requirements may include:

other equipment operators

maintenance personnel

supervisors

site personnel

Assemble and insert casing and screens may involve:

solvent cement (PVC)

stainless steel screws (PVC)

threaded (PVC, FRP, ABS)

Equipment required for assembly and insertion may include:

hand tools

power driven (electric, hydraulic or air) hand tools

solvent

Bore construction procedures may include:

other regulations and standards

ANZECC/NHSMRC Guidelines (for working on contaminated sites)

AWRC Guide to sampling contaminated groundwater

U.S. OSHA Guidelines

organisation's own internal procedures

ARMCANZ "Minimum Construction Requirements for Water Bores in Australia" July 1997

Knowledge of basic geological data may include:

rock types

aquifer systems

drillability

stability

Numerical tasks may include calculations such as:

volume (e.g. mud pits, drums, tanks or bore holes of given dimensions)

up hole velocity

cement/water/additives quantities

conversion from imperial to metric and vice versa

Documents to determine design may include:

results of test hole

hydrogeological data

environmental data

site reports

geological data

old bore hole logs

Written tasks may include:

daily drill operation report

diagrams

brief descriptions