992 version 5
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Install drainage systems used in landscaping
Level
3
Credits
4
Purpose
This unit standard is for people working, or intending to work, in landscaping.
People credited with this unit standard are able to: define and sketch
drainage systems; set out and excavate for drainage systems; and install
drainage systems.
Subfield
Horticulture
Domain
Landscape
Status
Registered
Status date
25 September 2006
Date version published
25 September 2006
Planned review date
31 December 2011
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA, industry
and teaching professional in the same field from another
provider.
Standard setting body (SSB)
Primary Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0032
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Workplace procedures refer to verbal or written instructions to staff on procedures for
the worksite and equipment.
2
Legislation relevant to this unit standard includes but is not limited to the Health and
Safety in Employment Act 1992 and the Resource Management Act 1991.
 New Zealand Qualifications Authority 2016
992 version 5
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Elements and performance criteria
Element 1
Define and sketch drainage systems.
Performance criteria
1.1
Situations where drainage systems are required in landscaping are defined in
terms of the characteristics of those situations.
Range
low lying and catchment areas, sub-soil pans, high water tables,
high retention soils.
1.2
Surface and sub-surface drainage systems are described in terms of their
functions.
1.3
Collection points in drainage systems are described in terms of their functions.
1.4
Cross sections of drainage system elements are sketched and labelled to show
construction.
Range
one example of each of – surface drains, sub-surface drains,
collection points.
Element 2
Set out and excavate for drainage systems.
Performance criteria
2.1
Drainage system elements are set out in accordance with drawings and/or site
requirements using measuring and levelling equipment.
Range
2.2
elements – collection points, drainage runs, discharge points.
Excavations for drainage elements are made to line, depth, and grade using
hand tools and light mechanical equipment in accordance with workplace
procedures.
Element 3
Install drainage systems.
Performance criteria
3.1
Surface drainage elements are installed to specification and manufacturer's
instructions.
Range
one of – concrete channel, preformed concrete or clay units,
proprietary plastic units.
 New Zealand Qualifications Authority 2016
992 version 5
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3.2
Sub-surface drainage elements are installed to specification and manufacturer’s
instructions.
Range
3.3
Collection points are installed to specification and manufacturer's instructions
for preformed units.
Range
3.4
Local Authority requirements, Resource Management Act 1991.
Backfill and compaction are completed in accordance with workplace
procedures, without damage to drainage elements, and minimising risk of
subsidence of fill.
Range
3.6
cast in situ or preformed; entry and exit connections, surface
drainage and access covers.
Discharge points and connections established meet regulatory requirements.
Range
3.5
elements may include but are not limited to – plastic piping,
perforated plastic piping, preformed clay units, drainage metal,
filter cloths.
completion – design features, special characteristics,
documentation.
The site is left in a condition that enables further work to proceed unimpeded in
accordance with workplace procedures.
Please note
Providers must be accredited by the Qualifications Authority, 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 the Qualifications Authority 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 Primary Industry Training Organisation www.primaryito.ac.nz if you
wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016