17871 version 2
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Describe safe practices when working with hazards in water and
wastewater treatment plants
Level
3
Credits
3
Purpose
People credited with this unit standard are able to: describe the safe practice
requirements of the organisation and the Health and Safety in Employment
Act 1992 in relation to water and wastewater treatment plants; demonstrate
knowledge of hazardous substances in water and wastewater treatment
processes; demonstrate knowledge of personal health risks, hygiene
procedures, and preventive practices for people working in wastewater
treatment plants, and describe the actions required in the event of a
hazardous situation in water and wastewater treatment plants.
Subfield
Water Industry
Domain
Water - Generic
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 by NZQA and industry.
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
Definitions
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.
Wastewater includes stormwater and sewage systems.
 New Zealand Qualifications Authority 2016
17871 version 2
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2
Reference
Legislation relevant to this unit standard includes but is not limited to the Health and
Safety in Employment Act 1992.
Elements and performance criteria
Element 1
Describe the safe practice requirements of the organisation and the Health and Safety in
Employment Act 1992 in relation to water and wastewater treatment plants.
Performance criteria
1.1
The obligations of the employer and employee are described in terms of the
Health and Safety in Employment Act 1992.
Range
1.2
safe environments, hazards and identification, training, accidents,
site safety plan.
The duties of hazard management are described in terms of the Health and
Safety in Employment Act 1992.
Range
safe environments, hazards and identification, training, accidents,
site safety plan.
1.3
The requirements of accident recording and investigation are outlined in terms
of the Health and Safety in Employment Act 1992.
1.4
The actions undertaken when supervising contractors and visitors on a water or
wastewater treatment plant site are described in accordance with organisational
procedures.
Element 2
Demonstrate knowledge of hazardous substances in water and wastewater treatment
processes.
Range
one example from each of – corrosive, toxic, carcinogenic, oxidising, flammable,
acids, alkalis, solvents, biological.
Performance criteria
2.1
Hazard information is identified in terms of location and content for water and
wastewater treatment substances.
Range
2.2
any three of – container labelling, material safety data sheets,
reference documents, databases.
The information gathered is described in terms of use for identifying, minimising,
isolating and eliminating the hazards.
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2.3
Chemical and physical reactions of hazardous substances are identified in
terms of water and wastewater treatment chemicals.
Range
any three of – oxidation, neutralisation, heat produced or needed
for reactions, use of dilution water, gas density relative to air.
Element 3
Demonstrate knowledge of personal health risks, hygiene procedures, and preventive
practices for people working in wastewater treatment plants.
Performance criteria
3.1
Standard preventive practices for personnel are described in terms of personal
health risks and methods to reduce these risks.
Range
3.2
includes but is not limited to – hepatitis innoculation.
Hygiene procedures are described for staff maintaining both water and
wastewater systems in accordance with organisational procedures.
Element 4
Describe the actions required in the event of a hazardous situation in water or wastewater
treatment plants.
Performance criteria
4.1
The actions required to locate the hazard source are described in accordance
with organisational requirements.
4.2
The actions taken to minimise the risks are identified and described in
accordance with organisational requirements.
Range
evacuation, containment, minimisation, notification.
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.
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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