1156 version 8
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Drain a sports turf area
Level
3
Credits
5
Purpose
This unit standard is for people working or intending to work in the sports turf
industry.
People credited with this unit standard are able to: identify and describe the
characteristics of poorly drained sports turf; describe drains, drainage, pipe
drains and backfill materials for sports turf; and install a sports turf pipe drain.
Subfield
Sports Turf
Domain
Sports Turf Construction and Drainage
Status
Registered
Status date
17 October 2008
Date version published
17 October 2008
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Primary Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0037
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
None.
 New Zealand Qualifications Authority 2016
1156 version 8
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Elements and performance criteria
Element 1
Identify and describe the characteristics of poorly drained sports turf.
Performance criteria
1.1
Characteristics of poor drainage are identified and described in terms of the
symptoms.
Range
1.2
Characteristics of poor drainage are identified and described in terms of the
causes.
Range
1.3
at least four of – black layer, ponding, gleying, mottling, species
composition and health, thatch accumulation, smell, absence of
earthworms, root distribution, wetness in profile, poor playability.
at least four of – watertable height, rising water table caused by
tides or ground water levels, soil type, impermeable subsoil,
springs, seepage, runoff, soil and sand textural changes, overuse,
traffic, pans, soil structural changes, tip sites, broken and blocked
pipes, poor maintenance practices.
A solution to poor drainage is ascertained from an analysis of the symptoms
and causes.
Range
solutions may include – catchwater, interceptor, watertable control,
sub-surface profile reconstruction, biological, soil conditioning,
physical treatments, outlet, surface shaping.
Element 2
Describe drains, drainage, pipe drains, and backfill materials for sports turf.
Performance criteria
2.1
Drains are described in terms of the options available for sports turf areas.
Range
2.2
at least five of – pipe drains, mole drains, slit drains, strip drains,
open drains, soak holes, V-drains, gradient, junctions, gravel
bands.
Pipe drain materials are described in terms of their suitability for sports turf
areas.
Range
at least three of – plastic, clay, concrete, perforated, corrugated,
smooth, twin-walled.
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1156 version 8
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2.3
Pipe drainage is described in terms of the features of design and installation.
Range
2.4
at least four of – herringbone, grid, parallel, random, fan, depth of
excavation, junctions, gradient.
Optimum sports turf drainage backfill material characteristics are described in
terms of their physical properties.
Range
at least three of – permeability, stability, size, availability,
compatibility.
Element 3
Install a sports turf pipe drain.
Performance criteria
3.1
Tools are selected to suit trench specifications.
3.2
Trench lines are laid out and a clean trench is excavated to the specified width
and depth for sports turf purposes.
3.3
The trench is excavated to a positive outlet with a minimum fall in accordance
with the requirements of the specified pipe drainage material and specifications.
3.4
Excavated material is positioned conveniently without interfering with drainlaying.
3.5
The pipe is laid on an even gradient.
3.6
The specified backfill is installed to design specification depths without
contamination.
3.7
The turf surface is restored without sinkage in accordance with design
specifications.
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.
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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 standards@primaryito.ac.nz if
you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016