9555 version 4
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Identify methods of prevention and control of, and monitor and control,
erosion on a gas transmission pipeline system
Level
4
Credits
8
Purpose
This unit standard is for people working, or intending to work, in the gas
transmission industry.
People credited with this unit standard are, on a gas transmission pipeline
system, able to: demonstrate knowledge of terrain where erosion has
occurred, or is likely to occur; demonstrate knowledge of methods for the
prevention and control of erosion; monitor and control areas of erosion; and
prepare a scope of the work required to control erosion.
Subfield
Gas Industry
Domain
Gas Transmission Operations
Status
Registered
Status date
22 May 2009
Date version published
22 May 2009
Planned review date
31 December 2014
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
(MITO)
Accreditation and Moderation Action Plan (AMAP) reference
0114
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Performance of the elements of this unit standard must comply with relevant site
requirements, and the following legislation and standard:
Health and Safety in Employment Act 1992(HSE);
Health and Safety in Employment (Pipelines) Regulations 1999;
Resource Management Act 1991(RMA);
NZS/AS 2885.1:1997 Pipelines – Gas and liquid petroleum – Design and
construction.
 New Zealand Qualifications Authority 2016
9555 version 4
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2
Definition
Company procedures refer to the documented methods for performing work activities
and include health and safety, environmental, site requirements, and quality
management requirements. They may refer to manuals, codes of practice, or policy
statements.
Elements and performance criteria
Element 1
Demonstrate knowledge of terrain where erosion has occurred, or is likely to occur, on a
gas transmission pipeline system.
Performance criteria
1.1
Basic soil and land formation is identified in relation to the pipeline location.
Range
1.2
Effects of physical elements on erosion are identified in relation to the pipeline
location.
Range
1.3
sand, silt, clay, peat, rock types, swamps, watercourses,
landforms.
wind, sun, water, slope, aspect, land management practices.
Erosion classifications are described in relation to a gas transmission pipeline
environment.
Range
classifications – sandblows, slips, slumping, scouring, flooding,
land use, watercourse deviations.
Element 2
Demonstrate knowledge of methods for the prevention and control of erosion on a gas
transmission pipeline system.
Performance criteria
2.1
Erosion prevention methods are identified in relation to the terrain and the
environment.
Range
2.2
planting, drainage, land use, retaining structures.
Sources of expert advice are identified and utilised to assist in prevention and
control of erosion in accordance with company procedures.
Range
external consultants, local authorities, internal expertise, local
knowledge.
 New Zealand Qualifications Authority 2016
9555 version 4
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2.3
Characteristics of plants that can be used for soil stabilisation are identified in
accordance with company procedures and location requirements.
Range
2.4
depth of rooting, hardiness for site, speed of growth, water
extraction abilities, evergreen, deciduous, size, lifespan, stock and
possum palatability.
Safety and environmental impacts related to prevention and control of erosion
are identified in accordance with company procedures.
Range
aesthetically acceptable, public and stock safety, downstream
effects, RMA, HSE Act.
Element 3
Monitor and control areas of erosion on a gas transmission pipeline system.
Performance criteria
3.1
Erosion areas are monitored, and any changes are documented, in accordance
with company procedures.
Range
3.2
documents include – event reports, third party reports;
items to be documented include – measurements between pegs,
water levels in boreholes, line of site pegs, subsoil drain flows.
Damage or faults in a gas transmission pipeline due to erosion are reported and
repaired in accordance with company procedures.
Range
replant, clean drains, maintain fences, maintain drain outlets,
weed control, silviculture.
3.3
Areas of concern are inspected after adverse weather, earthquakes, and
ongoing land use in accordance with company procedures.
3.4
Observation reports are completed in accordance with company procedures
and regulatory requirements.
Element 4
Prepare a scope of the work required to control erosion on a gas transmission pipeline
system.
Performance criteria
4.1
A scope of work is prepared for a gas transmission pipeline environment where
erosion is identified, in accordance with availability of resources and company
procedures.
Range
limitation of budgets, local sourcing of materials and contractors,
company expertise used, consultation with peers.
 New Zealand Qualifications Authority 2016
9555 version 4
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Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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 the NZ Motor Industry Training Organisation (Incorporated) (MITO)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016