NZQA registered unit standard
23283 version 3
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Title
Excavate, backfill and compact, and prepare for surface
reinstatement for infrastructure works
Level
3
Credits
10
Purpose
People credited with this unit standard are able to: prepare for
excavation operations, excavate, backfill and compact, and
carry out final preparation for surface reinstatement for
infrastructure works.
Classification
Infrastructure Works > Generic Infrastructure Works
Available grade
Achieved
Explanatory notes
1
The following legislation and requirements apply to this unit standard:
Health and Safety in Employment Act 1992;
Resource Management Act 1991;
Approved Code of Practice for Safety in Excavation and Shafts for Foundations is
available from http://www.osh.dol.govt.nz/order/catalogue/135.shtml;
Code of Practice for Temporary Traffic Management, produced by the New Zealand
Transport Agency and available from http://www.nzta.govt.nz/resources/code-temptraffic-management/index.html;
or equivalent specification as required by the road controlling authority (RCA) on its
network;RCA and local authority requirements and service providers.
Other requirements applicable to this unit standard may include but are not limited to:
SNZ HB 2002:2003, Code of Practice for Working in the Road; available from
http://www.standards.co.nz;
2
Assessment against this unit standard must be based on evidence from a workplace
context.
3
Tools and personal protective equipment, appropriate to job requirements, is to be
selected and used in accordance with company procedures and manufacturer’s
instructions.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
4
23283 version 3
Page 2 of 4
Definitions
Company requirements include the policy, procedures, and methodologies of the
company. They include legislative and regulatory requirements, which may apply
across the company or to a specific site. Requirements are documented in the
company’s health and safety plans, traffic management plans, contract work
programmes, quality assurance programmes, policies, and procedural documents.
Contract specifications include plans, diagrams, and special technical conditions.
They do not include special administrative conditions.
Immediate environment refers to the environment in which the work is taking place such
as inner city, suburban, or rural, and may include the presence of nearby structures.
Road Controlling Authority (RCA) refers to New Zealand Transport Agency network,
local authority requirements and service providers.
Outcomes and evidence requirements
Outcome 1
Prepare for excavation operations for infrastructure works.
Evidence requirements
1.1
A check is made to ensure the plan supplied is the current approved plan for
operations, and discrepancies to the plan are reported in accordance with
company requirements.
Range
discrepancies may include ground conditions, immediate
environment, services
1.2
A check is made to ensure that materials, plant, and equipment are fit for
purpose, and any concerns identified from the check are reported in accordance
with company requirements.
1.3
Hazards are identified, reported and controlled on site in accordance with
company requirements.
Range
1.4
controls include one of: elimination, isolation, minimisation.
Overhead and underground services are located and identified in accordance
with company, industry, and Department of Labour requirements.
Outcome 2
Excavate for infrastructure works.
Evidence requirements
2.1
Area to be excavated is marked out in accordance with the plan and company
requirements.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
2.2
Excavation is carried out taking into account ground conditions and immediate
environment, and the excavation is shored or otherwise stabilised in
accordance with company requirements and the Code of Practice for
Excavations.
Range
2.3
23283 version 3
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may include requirements under SNZ HB 2002:2003.
Groundwater is controlled without destabilising the excavation in accordance
with company requirements and the Code of Practice for Excavations.
Outcome 3
Backfill and compact for infrastructure works.
Evidence requirements
3.1
A check is made to ensure backfill material meets contract specifications and/or
RCA requirements, and any discrepancies are reported in accordance with
company requirements.
3.2
Backfill material is placed and compacted in accordance with contract
specifications, RCA and company requirements.
Outcome 4
Describe and carry out final preparation prior to surface reinstatement.
Evidence requirements
4.1
Surface reinstatement and final preparation requirements are described in
accordance with contract specifications and/or RCA requirements.
4.2
Final preparation prior to surface reinstatement is made in accordance with
contract specifications and/or RCA requirements, and company requirements.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
26 January 2007
31 December 2012
Review
2
21 November 2008
31 December 2012
Review
3
21 July 2011
N/A
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
23283 version 3
Page 4 of 4
Consent and Moderation Requirements (CMR) reference
0101
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMRs). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact Infrastructure ITO askus@infratrain.co.nz if you wish to suggest changes to
the content of this unit standard.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016