24951 version 1
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Describe emergency situations and process failure conditions in a
water treatment plant
Level
4
Credits
2
Purpose
People credited with this unit standard are able to describe emergency
situations and process failure conditions in a water treatment plant.
Subfield
Water Industry
Domain
Water Treatment
Status
Registered
Status date
19 September 2008
Date version published
19 September 2008
Planned review date
31 December 2013
Entry information
Open.
Replacement information
This unit standard and unit standard 24950 replaced unit
standard 17889.
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
Definitions
Organisational procedures – instructions to staff and procedures which are documented in
memo or manual format and are available in the workplace. These procedures include but
are not limited to – site specific procedures, manufacturers’ specifications, product quality
specifications and reference to legislative or regulatory procedures relevant to the industry.
Water treatment plant – a site where at least two unit process operations are used to
improve raw water quality for the purposes of a potable water supply.
 New Zealand Qualifications Authority 2016
24951 version 1
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Elements and performance criteria
Element 1
Describe emergency situations and process failure conditions in a water treatment plant.
Performance criteria
1.1
Critical and emergency situations are identified and explained in terms of the
impacts on downstream processes and appropriate responses in accordance
with organisational procedures.
Range
1.2
The interaction between each unit process is explained in terms of the risks of
overall process failure.
Range
1.3
includes but is not limited to – floods, mechanical failure, pipeline
failure, power supply losses, chemical spills, earthquake.
any one of – water quality and chlorine demand, plant flow,
storage and filter washing, separation failure and filter loading, pH
failure and coagulation.
Process failures likely to affect personal and public safety are described in
terms of the likely responses required.
Range
evidence is required for at least two.
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