18440 version 2
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Describe drinking-water standards and the relevant Ministry of Health
quality management strategy
Level
4
Credits
3
Purpose
People credited with this unit standard are able to describe: the Ministry of
Health drinking-water strategy; the application of the Drinking-Water
Standards for New Zealand; the Ministry of Health Drinking-Water Supply
Public Health Grading procedures for community drinking-water supplies;
and the purpose of the Ministry of Health annual review.
Subfield
Water Industry
Domain
Drinking-Water Assessment
Status
Registered
Status date
19 September 2008
Date version published
19 September 2008
Planned review date
31 December 2013
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
0179
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Reference
Drinking-Water Standards for New Zealand, Ministry of Health, Wellington, 2000 and
2005.
2
Definitions
Grading document refers to the procedures in the most recent version of Public
Health Grading of Community Drinking-Water Supplies, 2003, Explanatory notes and
grading forms, Ministry of Health, Wellington.
 New Zealand Qualifications Authority 2016
18440 version 2
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Drinking-water supply – the supply catchment, treatment plant, and distribution. The
drinking-water supplier has responsibility for managing the public health risks of the
drinking-water supply.
Elements and performance criteria
Element 1
Describe the Ministry of Health drinking-water strategy.
Performance criteria
1.1
Drinking-water supplies are described in terms of sources, treatment plants, and
distribution zones.
1.2
The New Zealand drinking-water strategy is described in terms of its historical
context, and the relationship of its components.
Range
components include but are not limited to – the Register of
Community Drinking-Water Supplies in New Zealand, DrinkingWater Standards for New Zealand, New Zealand system of public
health grading of drinking-water supplies, annual survey, Water
Information NZ (WINZ), Priority Two (PT2) determinands
programme, drinking-water assistance programme.
Element 2
Describe the application of the Drinking-Water Standards for New Zealand.
Performance criteria
2.1
The Drinking-Water Standards for New Zealand are described in terms of the
Health Act and regulatory framework for community water supplies in New
Zealand.
2.2
Maximum Acceptable Values (MAVs) and determinands are described in terms
of their method of derivation and interpretation in the Drinking-Water Standards.
Range
2.3
selection of determinands, priority classes for determinands,
compliance and transgressions, development of MAVs.
Compliance with microbiological, chemical, radiological and cyanobacterial
MAVs is described in terms of the Drinking-Water Standards.
Range
microbiological – rationale, criteria, protozoa, monitoring and
sampling requirements, transgression actions, E. Coli, pathogenic
bacteria, cyanobacteria;
chemical – rationale, criteria, monitoring and sampling
requirements, transgression actions;
radiological – rationale, criteria, monitoring and sampling
requirements, transgression actions.
 New Zealand Qualifications Authority 2016
18440 version 2
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2.4
Small drinking-water supplies and tankered water supplies compliance
requirements are described in terms of the Drinking-Water Standards for New
Zealand 2005, Sections 10 and 11.
2.5
Aesthetic assessment of a community drinking-water supply is described in
terms of the Drinking-Water Standards.
2.6
Aggressive water, plumbosolvency, and corrosion metals are described and
distinguished from Priority 2 metals in terms of the Drinking-Water Standards for
New Zealand.
2.7
Drinking-Water Standards for New Zealand are described in terms of the
requirements of a Drinking-Water Assessor.
Range
includes but is not limited to – sampling plan, new water sources,
cyanobacterial response protocol, boiled water notice, response to
transgressions.
Element 3
Describe the Ministry of Health Drinking-Water Supply Public Health Grading procedures
for community drinking-water supplies.
Performance criteria
3.1
The purpose of the grading is described in terms of public statement on the
management of risk of a drinking-water supply.
3.2
The method of grading drinking-water is described in terms of the procedure set
in the grading document.
3.3
The method of grading a treatment system is described in terms of the
procedure set in the grading document.
3.4
The method of grading a distribution zone is described in terms of the
procedure set in the grading document.
Element 4
Describe the purpose of the Ministry of Health annual review.
Performance criteria
4.1
The purpose of the Ministry of Health annual review is described in terms of the
status of compliance of drinking-water supplies with the drinking-water
standards.
 New Zealand Qualifications Authority 2016
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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.
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