RIINHB325E — Construct single aquifer bores

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What an assessment for RIINHB325E must cover

85 assessable components: 4 elements (18 performance criteria), 33 performance evidence and 32 knowledge evidence requirements, plus 2 foundation skills. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Plan and design for the construction of single aquifer bores

1.1Obtain, interpret and confirm work requirements
1.2Access, interpret and apply single aquifer drilling documentation and confirm work activity is compliant
1.3Identify and minimise environmental issues and potential hazards, and assess and address risks within scope of own role and according to workplace procedures
1.4Site a bore and design single aquifer bore in accordance with work and legislative requirements
1.5Select and wear personal protective equipment required for work activity
1.6Communicate with other personnel at site according to work requirements and confirm briefings and handover details are communicated and received
1.7Select required drilling method for site geology

2 Construct and develop single aquifer bores in line with established requirements

2.1Drill and isolate target production zone from other formations
2.2Log strata encountered during drilling according to workplace procedures
2.3Confirm or amend bore design based on testing and encountered geology
2.4Construct bore according to confirmed or amended design using simple construction techniques
2.5Undertake bore development until a continuous, clean supply of water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements
2.6Estimate yield by using yield testing methodologies
2.7Complete written bore construction record according to workplace procedures

3 Disinfect/decontaminate bore and drilling equipment in line with established requirements

3.1Determine and monitor potential contaminants of drilling equipment
3.2Disinfect/decontaminate bores and installed equipment constructed for potable supplies

4 Decommission bore holes in line with established requirements

4.1Determine suitable decommissioning procedures for failed or unwanted bores and select appropriate materials
4.2Seal the bore as per legislative requirements

Performance evidence

construct single aquifer bores on at least three occasions, including:
planning and preparing for the construction of single aquifer bores, including:
discussing and agreeing scope of work with client, including cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used
selecting a bore site to prevent contamination and minimise interference with other bores
designing a single aquifer bore and determining construction method to ensure the exclusion of surface water ingress and screening the correct zone of strata for a water supply or groundwater monitoring purposes.
constructing and developing single aquifer bores in line with established requirements, including:
confirming or amending bore design based on encountered geology, using:
lithological logging
bore yield testing
water quality testing
selecting likely water entry mechanism from the formation to the bore including stainless steel screens, filter packs, slotted casing, and open hole
calculating and making up cement grout volumes and mixing grout component quantities, including:
cement powder
water
bentonite
calculating hole and annular volumes
calculating grout specific gravity
constructing bore according to confirmed or amended design, including:
assembling and installing casings, seals and screens
installing filter pack
grouting
confirming or amending bore design based on encountered geology, using:
lithological logging
aquifer yields testing
water quality testing
continuing development until a continuous, clean supply of water is obtained.
estimating yield by using methodologies of:
air lifting
pumping
disinfecting/decontaminating bore and drilling equipment in line with established requirements, including:
disinfecting bores and installed equipment using proprietary chemical solution
decommissioning bore holes in line with established requirements
decommission single aquifer failed or unwanted bores as required.

Knowledge evidence

key legislation required to construct single aquifer bores
key policies, procedures and established requirements for constructing single aquifer bores, including those for:
Minimum Construction Requirements (MCR)
contractual agreements with clients
workplace health and safety
environmental practice
accidents and emergencies
safety data sheets (SDS)
housekeeping
key factors affecting multiple aquifer production bore performance, including:
objectives of bore development
properties, uses and effects of and differences between:
single and multiple aquifers
casings
bore water entry designs (screens, filter packs, slotted casing, open hole)
cement (grout) make up components
tremie pipe grout placement methods and procedures
hole preparation for cementing (grouting) operations
calculations for:
volume (including tanks or bore holes of given dimensions and annulus)
flow rates
conversion from imperial to metric and vice versa
equipment processes, technical capability and limitations
casing strength characteristics
ways in which sampling errors can occur
yield testing procedures
applications for different types of filter packs (artificial pack, natural pack) and completion techniques
characteristics of ‘good samples’ required for water well construction
types of pathogens and contaminants including bacteria
key site information, including:
basic geological formations, including soil and rock classifications, which permit groundwater movement
bore construction reporting.

Foundation skills

Reading: Identifies and interprets information from workplace procedures, policies and documentation
Numeracy: Identifies and comprehends relevant mathematical information and formulae in relation to constructing single aquifer bores

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing RIINHB325E

What does an assessment tool for RIINHB325E need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for RIINHB325E needs to address all 85 unit components: 4 elements with 18 performance criteria, 33 performance evidence requirements, 32 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for RIINHB325E?

Auditori pulls the current release of RIINHB325E from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

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Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of RIINHB325E, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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