NZQA registered unit standard
22102 version 3
Page 1 of 3
Title
Demonstrate knowledge of pressure zones and backflow prevention
in water reticulation
Level
4
Purpose
Credits
4
People credited with this unit standard are able to demonstrate
knowledge of pressure zones and backflow prevention in water
reticulation.
This unit standard is for people who supervise maintenance
and operations in water reticulation, and people who work in
specialist water reticulation activities.
Classification
Water Industry > Water Reticulation
Available grade
Achieved
Explanatory notes
1
Legislation includes but is not limited to – Health Act 1956, Health and Safety in
Employment Act 1992, and Local Government Act 2002.
2
References
Water Meter Code of Practice (2003), and Backflow Prevention for Drinking Water
Suppliers Code of Practice 2006, available from www.waternz.org.nz.
3
Standards
NZS 9201.7:2007 Model general bylaws - Water supply,
AS/NZS 2845.1:2010 Water supply - Backflow prevention devices - Materials, design
and performance requirements, both of the above are available from
http://www.standards.co.nz.
Drinking Water Standards for New Zealand 2005 (Revised 2008), available from
http://www.moh.govt.nz.
4
Definition
Water reticulation – in this context refers to all pipe systems, pumping systems, and
components that contribute to the distribution of water.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of pressure zones in water reticulation.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
22102 version 3
Page 2 of 3
Evidence requirements
1.1
Personal protective equipment for water and drainage construction is identified
and described in accordance with organisational procedures.
1.2
Hazards are identified and managed in accordance with the Health and Safety
in Employment Act 1992 and organisational procedures.
1.3
Trench shoring requirements are identified and described in accordance with
contract drawings.
Range
1.4
trench depth, trench alignment, ground condition, material type.
Traffic control requirements are identified and described in accordance with
Code of Practice for Temporary Traffic Management.
Outcome 2
Demonstrate knowledge of backflow prevention in water reticulation.
Evidence requirements
2.1
Backflow is described in terms of the implications for localised contamination of
drinking-water supplies, and for compliance with the Drinking Water Standards
for New Zealand 2005 (Revised 2008).
2.2
Backflow prevention devices are described in terms of their operation, and
methods of testing for satisfactory operation.
Range
2.3
evidence is required for at least two backflow prevention devices.
Backflow prevention techniques are described in terms of their suitability for
consumer situations.
Range
air gap, reduced pressure zone (RPZ), double check valve.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
26 October 2005
31 December 2016
Rollover and
Revision
2
20 February 2009
31 December 2016
Rollover and
Revision
3
21 July 2011
N/A
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
22102 version 3
Page 3 of 3
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.
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 (CMRs). 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.
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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016