17890 version 2
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Undertake sampling and testing procedures for water treatment
Level
3
Credits
7
Purpose
People credited with this unit standard are able to collect and handle water
samples for water treatment, and carry out site analyses of water 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.
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
Definition
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, laboratory
procedures, manufacturers’ specifications, product quality specifications and
reference to legislative or regulatory procedures relevant to the industry.
2
Reference
Drinking-Water Standards for New Zealand, Ministry of Health, Wellington, 2000 and
2005.
 New Zealand Qualifications Authority 2016
17890 version 2
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Elements and performance criteria
Element 1
Collect and handle water samples for water treatment.
Performance criteria
1.1
Sampling sites and times are selected in accordance with organisational
procedures.
Range
1.2
Sample collection procedures are carried out in accordance with organisational
procedures.
Range
1.3
includes but is not limited to – correct containers, sterility, flush
volumes, representative samples, sample contamination,
preservation of sample integrity.
Samples are labelled in accordance with organisational procedures.
Range
1.4
sampling frequency, grab samples, containers, multiple sites.
includes but is not limited to – date, time, location, source,
purpose, sampler.
Samples are handled and transported in accordance with organisational
procedures.
Range
may include but is not limited to – sample packing, temperature
control, sunlight effects, timeliness.
Element 2
Carry out site analyses of water in a water treatment plant.
Performance criteria
2.1
Testing equipment is calibrated, if required, and site tests are carried out in
accordance with organisational procedures.
Range
2.2
Results of site testing are recorded in accordance with organisational
procedures.
Range
2.3
chlorine residual, plus any two of – turbidity, temperature, colilert,
jar test, conductivity, pH, alkalinity, hardness.
at least one of – plant log, computer-based data systems.
Sample results that are outside operating guidelines result in appropriate action
in accordance with organisational procedures.
Range
plant adjustments, notification to others.
 New Zealand Qualifications Authority 2016
17890 version 2
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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