24932 version 1
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Describe the impact of effluent discharge on the environment
Level
5
Credits
10
Purpose
People credited with this unit standard are able to describe the impact of
effluent discharge on: surface receiving water; groundwater; and soils and
vegetation.
Subfield
Water Industry
Domain
Wastewater 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 replaced unit standard 19179.
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
Effluent – treated wastewater which is the used water from domestic, commercial, and
industrial activities, which contains contaminants such as nutrients, organic matter, and
micro-organisms; and excludes stormwater.
Surface receiving water – rivers, streams, lakes, marine environment.
The environment – surface water, groundwater, soils, and vegetation.
 New Zealand Qualifications Authority 2016
24932 version 1
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Elements and performance criteria
Element 1
Describe the impact of effluent discharge on surface receiving water.
Performance criteria
1.1
Receiving water is described in terms of the impact of effluent discharge on
dissolved oxygen deficit.
Range
1.2
Receiving water is described in terms of the impact of effluent discharge on
algal productivity and aquatic plant growth.
Range
1.3
includes but is not limited to – oxygen sag, dilution ratio, aquatic
organism requirements.
includes but is not limited to – nutrient levels, dilution ratio, algal
and other aquatic growth, water clarity.
Receiving water is described in terms of the impact of effluent discharge on
micro-organism reduction.
Range
includes but is not limited to – dilution, dispersion, self-purification,
bio-accumulation.
Element 2
Describe the impact of effluent discharge on groundwater.
Performance criteria
2.1
Groundwater is described in terms of the impact of effluent discharge on
nutrient levels.
Range
2.2
Groundwater is described in terms of the impact of effluent discharge on
microbiological quality.
Range
2.3
public health, the environment.
includes but is not limited to – transport, breakdown, bio
accumulation.
Groundwater is described in terms of the impact of effluent discharge on
organic matter.
Range
transport, breakdown, bio-accumulation.
 New Zealand Qualifications Authority 2016
24932 version 1
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Element 3
Describe the impact of effluent discharge on soils and vegetation.
Performance criteria
3.1
Soils are described in terms of the impact of effluent discharge.
Range
3.2
saturation, contaminant accumulation, microbiological clogging,
physical clogging, chemical clogging.
Vegetation is described in terms of the impact of effluent discharge.
Range
contaminant accumulation, growth rate, species diversity and
abundance.
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