RPL UNIT TOOL
NWP07 Water Training Package
NWP271B Monitor, operate and report sedimentation processes
This section assists the assessor in reviewing the competency conversation.
Do NOT give this section to the candidate.
This section is to be used by the assessor to complete a skills assessment for a unit of competency.
The purpose of a competency conversation is to gather specific information from a candidate to assist with
a skills recognition decision. You may not need to ask all the questions that are provided here. If a
candidate has already provided sufficient evidence to demonstrate competency for part of a unit, then use
the questions to gain information about aspects of the unit of competency that have not already been
covered.
The questions provided here are a guide; feel free to develop your own or add follow-up questions to gain
the information that you need to make a skills recognition decision.
This section contains the following:
1. Unit summary
Elements and performance criteria are linked to questions, demonstration/observation tasks and
documentary evidence from previous self-evaluation.
2. Competency Conversation Guide, Question Bank, Tasks and Documentation
This part has been developed by the industry to supplement the more detailed Required Skills and
Knowledge that must be addressed for each unit of competency. It includes questions that are
referred to in the Unit Summary, with possible responses. There is also a list of tasks relevant to the
unit and examples of relevant documents the candidate may provide.
3. Evidence Documents
4. Summary of Competency Conversation
This is where you summarise the outcomes of the competency conversation, indicating which
responses were satisfactory and adding any additional comments.
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Unit summary
Interview
NWP271B Monitor, operate and report sedimentation processes
(Competency Conversation
Guide and Question Bank
reference)
Demonstration
/observation
Documentary
evidence
(Task number)
(Document number)
Element
Performance Criteria
Question
number
Competency
Conversation
Guide (CCG)
1. Plan and prepare
for work
1.1 Determine work requirements according to legislative and organisational
requirements.
1, 2, 5,
6
CCG 1,2
1, 2
1, 2
1, 2, 3,
4, 7
CCG 3,4
1, 2
1, 2
7
CCG 1,4, 5
1, 2
1, 2
1.2 Select and check equipment required to meet safety requirements of task
and site.
1.3 Select, fit and use personal protective equipment.
2. Monitor and
operate
sedimentation
processes.
2.1 Carry out sedimentation process inspections according to type of plant.
2.2 Collect process samples and conduct standard tests.
2.3 Collect and report process data according to organisational and plant
requirements
2.4 Monitor processes to maintain parameters of operation.
2.5 Identify and report process faults and operational condition of plant
according to organisational requirements.
2.6 Carry out basic system adjustments to enhance system performance
according to organisational requirements.
3. Report
sedimentation
processes.
2
3.1
Compile records from plant and system data to meet organisational
requirements.
3.2
Report observations outside defined parameters for further action.
Version 2.0
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Competency Conversation, Question Bank, Tasks and Documentation Unit NWP271B
Competency Conversation Guide
(Industry has developed this guide to
supplement the more detailed Required Skills
and Knowledge that must be addressed for
each unit)
Question Bank
(The Assessor may choose to develop additional questions
assisted by the Required Skills and Knowledge listed for each
unit)
Exemplar of Responses
1
Describe the sedimentation process and plant
configuration used
2
3
4
What treatment guidelines are required to be met
What testing is done to monitor performance
What adjustments are made to process based on test
results
What safety precautions are taken to protect operators
After screening and grit removal the wastewater is
introduced to a sedimentation unit such as a horizontal or
radial flow tank where solids separation takes place. The
sludge settles prior to secondary treatment and digestion
SOPs, EPA Licence conditions
Settleable solids tests, suspended solids, pH
Sludge withdrawal rates
1) Standard Operating Procedures
2) Safety equipment and upkeep
3) Sampling and testing methods
4) Operational limits and
indicators of failure
5) Recording plant data & report
5
6
7
What safety precautions are taken during plant
maintenance
What would be reported on to satisfy organisational
requirements
Tasks
PPE equipment including Hi-Vis clothing, eye protection,
safety footwear, gloves and harnesses where appropriate.
Full mechanical and electrical isolation under permit, all
tools washed after use, PPE,
All test results, all observations, any parameters out of
operational guidelines, all malfunctions and maintenance
requirements, volumes treated, sludge quantity. Any out
of specification results to be acted on as appropriate
Documentation
Candidates may not be required to complete all tasks. The Assessor is to select tasks after
considering available evidence collected through previous phases and according to the context
and needs of each candidate.
1
2
3
Perform settleable solids test
Calculate percent removal of settleable solids
Version 2.0
1
2
Supervisor’s report on candidate
Candidate’s relevant PD documentation
NWP271B
30/10/2013
Evidence Documents
Candidate’s name
Qualification
Date of
submission
Tasks relevant to the unit
Task
numbers
(chosen by
assessor)
Doc
number
SATISFACTORY
Assessor’s comment
Y
N
The document is:
(relating to documents noted in or relevant
to this unit)
This shows evidence related to:
(Add which part of the unit(s) this evidence relates to)
Assessor will provide further information here or refer to the
assessment mapping tool.
All documents listed above have been sighted and authenticity confirmed on this date
/
Assessor’s name:
..............................................................................................
Assessor’s signature:
..............................................................................................
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Summary of Competency Conversation
Unit code and
Unit name
Candidate’s name
(Element
numbers
related to
this unit)
(Refer to
unit
question
bank)
Page 1 of ______
(The Assessor may choose to
develop additional questions for
this unit assisted from Key
Knowledge points)
Question
Element Number Assessor’s Question
Satisfactory
(Refer to this units Unit Summary and Exemplar or
Responses for additional information)
Yes
No
Assessor’s Comments
1
2
3
4
5
The participant’s overall responses to the questions was
SATISFACTORY
NOT SATISFACTORY
Feedback to participant
Participant’s signature
Observers signature & date
5 Version 2.0
Date
Date
NWP271B
30/10/2013