NZQA Expiring unit standard
25138 version 2
Page 1 of 4
Title
Develop an operation and maintenance instructions manual for
irrigation systems
Level
5
Purpose
Credits
8
This unit standard is for people who design and/or operate
irrigation systems.
People credited with this unit standard are able to write
instructions for the manual covering the operation and
maintenance of irrigation systems in accordance with design
specifications, component requirements, and the Irrigation
Design Code of Practice.
Classification
Water Industry > Irrigation
Available grade
Achieved
Explanatory notes
1
Legislation, regulations, and guidelines relevant to this unit standard include but are
not limited to the Health Act 1956, Health and Safety in Employment Act 1992,
Building Act 2004, Resource Management Act 1991, national policy statements,
regional resource management plans, and local bylaws.
2
Reference
The INZ Irrigation Design Code of Practice and Irrigation Design Standards, referred
to as the Irrigation Design Code of Practice is available from Irrigation New Zealand,
http://www.irrigationnz.co.nz/media/CoP.pdf.
3
This unit standard is
expiring
Assessment
Each of the following systems are required to be assessed against the performance
criteria of this unit standard – fixed, movable, micro-irrigation.
4
Key performance indicators (KPIs) are those found in the Irrigation Design Code of
Practice.
5
Credit for this unit standard does not qualify the candidate to work in a drainlaying
situation that comes under the drainlayers licence requirements issued under the
Plumber, Gasfitters, and Drainlayers Act 2006 and any subsequent amendments.
Outcomes and evidence requirements
Outcome 1
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
25138 version 2
Page 2 of 4
Write instructions for the manual covering the operation of the irrigation system in
accordance with design specifications, component requirements, and the Irrigation Design
Code of Practice.
Evidence requirements
1.1
The manual identifies irrigation system type, function, and location.
1.2
The manual identifies the control philosophy for normal operation, conditions
leading to overload, and emergency conditions.
1.3
Instructions provided specify system operating procedures.
Range
1.4
Instructions provided specify system management to mitigate risk under
extreme environmental conditions.
Range
1.5
includes but is not limited to – high velocity winds, flooding,
lightning, sub-optimal water supply (flow, pressure, turbidity),
contaminants.
Instructions identify expected KPI value ranges, how KPIs should be
determined, and frequency of review.
Range
1.6
includes but is not limited to – normal start-up, normal running,
normal close-down, emergency close-down.
includes but is not limited to – sampling point, sampling equipment
specifications, operating conditions.
The manual contains a KPI log of all KPI values at design, commissioning and
ongoing.
This unit standard is
Outcome 2
expiring
Write instructions for the manual covering maintenance of the irrigation system in
1.7
The manual outlines a health and safety plan.
accordance with design specifications, component requirements, and the Irrigation Design
Code of Practice.
Evidence requirements
2.1
Instructions provided specify maintenance schedules and procedures for
sprinklers and emitters.
Range
2.2
includes but is not limited to – flushing, corrosion prevention, wear
and tear, physical damage.
Instructions provided specify maintenance schedules and procedures for pumps
and motors.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
includes but is not limited to – priming, lubrication, drive train,
corrosion prevention, low water implications.
Range
2.3
Instructions provided specify maintenance schedules and procedures for the
pipe and control valve network.
includes but is not limited to – flushing, corrosion prevention, leak
detection, pressure loss.
Range
2.4
Instructions provided specify maintenance schedules and procedures for the
filtration system.
includes but is not limited to – automatic and manual flushing,
solenoid operation, disc or screen cleaning, media cleaning and
resettlement, seal maintenance, corrosion prevention.
Range
2.5
25138 version 2
Page 3 of 4
Instructions provided specify maintenance schedules and procedures for
mechanical irrigation plant.
examples – drive train, safety system, alignment system.
Range
2.6
Items requiring expert servicing are identified in accordance with warranty
requirements, conditions of service, bylaws, and regulations.
2.7
The manual contains manufacturer’s data sheets and a parts list of all
components in the irrigation system.
Replacement information
This unit standard and 25137 have been replaced by
unit standard 28933
This unit standard is
expiring
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
17 October 2008
31 December 2020
Review
2
20 August 2015
31 December 2020
Consent and Moderation Requirements (CMR) reference
0179
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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
25138 version 2
Page 4 of 4
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 (CMR). 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.
This unit standard is
expiring
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016