NZQA Expiring unit standard
20959 version 2
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Title
Carry out on-site evaluations of irrigation systems
Level
4
Credits
10
Purpose
People credited with this unit standard are able to: plan and
conduct on-site irrigation system evaluations; and carry out
post-evaluation and pre-leaving checks.
Classification
Water Industry > Irrigation
Available grade
Achieved
Explanatory notes
1
Legislation relevant to this unit standard includes but is not limited to the Health and
Safety in Employment Act 1992.
2
Reference
Irrigation Code of Practice: On-Farm Evaluation, referred to as the Irrigation Code of
Practice is available from the New Zealand Irrigation Association, PO Box 434,
Ashburton.
3
Definitions
organisational procedures – the verbal and written instructions to staff on irrigation
system performance;
KPIs – key performance indicators;
irrigation evaluation – the process of measuring and calculating the performance
criteria of a system or its management to provide information for management
decision-making.
This unit standard is
expiring
Outcomes and evidence requirements
Outcome 1
Plan on-site irrigation system evaluations.
Evidence requirements
1.1
Information is collated prior to the visit in accordance with the Irrigation Code of
Practice.
Range
1.2
general property, climate, soils, farm water supply, irrigation
system, irrigation system management.
The visit is planned in accordance with the Irrigation Code of Practice.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
Range
20959 version 2
Page 2 of 3
evaluation date(s), service and fees, system availability, tools
required.
Outcome 2
Conduct on-site irrigation system evaluations in accordance with the Irrigation Code of
Practice.
Evidence requirements
2.1
Pre-visit planning information is confirmed in consultation with the owner or
manager.
2.2
Evaluation details are confirmed.
Range
2.3
Pre-test inspections are carried out and recorded.
Range
2.4
purpose, operating conditions, location of key features and
components in the field, test locations, test to be conducted.
crop growth patterns and abnormalities, soil condition, root depth,
water holding capacity, wheel track condition, system layout and
components, topography.
Test equipment is set up, pre-start checks are carried out, and results recorded.
Range
may include but is not limited to – flow meter, pressure test points,
evaporation collectors, speed test markers, weather monitoring.
2.5
Operating and sprinkler/outlet checks are carried out and results recorded.
2.6
Uniformity testing is carried out and results recorded.
2.7
This unit standard is
Tests specific to the irrigation system and evaluation purpose are carried out
and results recorded. expiring
Range
may include but is not limited to – alternative pressure:flow tests,
specific span tests, alternative gun-angle tests.
Outcome 3
Carry out post-evaluation and pre-leaving checks in accordance with the Irrigation Code of
Practice.
Evidence requirements
3.1
Post-evaluation checks are carried out and results recorded.
Range
may include but is not limited to – flow meter readings, power
meter readings, system drainage patterns.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3.2
20959 version 2
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Pre-leaving checks are carried out.
Range
readings, equipment, the system.
Replacement information
This unit standard has been replaced by unit standard
28925 and unit standard 28926
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
19 August 2004
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.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
This unit standard is
expiring
Requirements for consent to assess and an outline of the moderation system that applies
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.
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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016