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Prepare a Public Health Risk Management Plan (PHRMP) for a large
drinking-water supply
Level
6
Credits
6
Purpose
People credited with this unit standard are able to: develop an overview of
the drinking-water supply, and identify PHRMP Guides which are required;
identify the events that can lead to contamination of the drinking-water
supply; identify barriers to contamination that are currently in place, and
those required, to ensure safe drinking-water supply; identify the preventive
measures, checks, corrective actions, and contingency plans for the drinkingwater supply to ensure safe drinking-water; prepare an improvement
schedule for the drinking-water supply; and prepare a performance
assessment of the drinking-water supply PHRMP.
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
References
Legislation relevant to this unit standard includes but is not limited to the Health Act
1956.
Drinking-Water Standards for New Zealand, Ministry of Health, Wellington, 2000 and
2005.
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Ministry of Health, A Framework on How to Prepare and Develop Public Health Risk
Management Plans for Drinking-Water Supplies, (Wellington, 2005).
Ministry of Health Public Health Risk Management Plan Guides for Drinking-Water
Supplies (PHRMPs).
All references are available from http://www.moh.govt.nz.
2
Definitions
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.
Large drinking-water supply – a drinking-water supply servicing more than 500
people, and which includes catchment, source, treatment, and reticulation.
Organisational procedures – instructions to staff, and procedures which are
documented in memo or manual format and are available in the workplace. These
requirements include but are not limited to – site specific requirements,
manufacturers’ specifications, product quality specifications, and legislative or
regulatory requirements.
Elements and performance criteria
Element 1
Develop an overview of the drinking-water supply, and identify which PHRMP Guides are
required.
Performance criteria
1.1
Flow diagram of drinking-water supply identifies all supply elements in source,
treatment, and distribution system.
1.2
Supply elements are identified consistent with PHRMP Guides.
1.3
Review of PHRMP Guides identifies relevance of other guides not identified in
drinking-water supply flow diagram.
Element 2
Identify the events that can lead to contamination of the drinking-water supply.
Performance criteria
2.1
Typical events contributing to contamination are identified for the drinking-water
supply.
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Element 3
Identify barriers to contamination that are currently in place, and those required, to ensure
safe drinking-water supply.
Range
barriers to – reduce contamination of raw water, remove particles from the
water, inactivate pathogens in the water, prevent contamination after treatment.
Performance criteria
3.1
Barriers to contamination are identified in terms of those provided by the
drinking-water supply to manage risks.
3.2
Hazards are identified in terms of those for which barriers are not currently in
place in the drinking-water supply.
Element 4
Identify the preventive measures, checks, corrective actions, and contingency plans for the
drinking-water supply to ensure safe drinking-water.
Performance criteria
4.1
Review of the drinking-water supply’s preventive measures, checks, and
corrective actions identifies those that are not present in drinking-water supply.
4.2
Review of the drinking-water supply’s contingency plans identifies actions for
managing the occurrence of the events identified in the PHRMP.
Element 5
Prepare an improvement schedule for the drinking-water supply.
Performance criteria
5.1
Assessment of improvements that can be made with low or no cost are
identified.
5.2
Improvements which require detailed planning and capital investment are
prioritised based on risk.
Element 6
Prepare a performance assessment of the drinking-water supply PHRMP.
Performance criteria
6.1
Frequency of review of the PHRMP, and person responsible are identified in
accordance with organisational procedures and legislative requirements.
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6.2
Observations or records required for each supply element are identified in
accordance with legislative requirements.
Range
frequency of observing or recording, location of records,
responsibilities of people observing or maintaining records.
6.3
Events that have occurred since last review and actions taken to avoid their
reoccurrence are identified in accordance with organisational procedures and
legislative requirements.
6.4
Changes to the supply elements are identified in relation to changes required to
the PHRMP and in accordance with organisational procedures and legislative
requirements.
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