List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
ELEMENTS | PERFORMANCE CRITERIA |
Elements describe the essential outcomes | Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section. |
1. Plan and prepare for work | 1.1 Determine work requirements as outlined in standard operating procedures. 1.2 Identify and report potential risks to self, other employees, public and environment. 1.3 Select and check work site equipment, tools and safety materials as appropriate to meet task and safety specifications. 1.4 Select, fit and use personal protective equipment. |
2. Monitor pretreatment processes | 2.1 Carry out routine plant inspections. 2.2 Monitor processes to maintain parameters of operation. 2.3 Collect process samples and conduct standard tests. 2.4 Collect, record and report process data. 2.5 Identify and report process faults and operational condition of plant. |
3. Operate pretreatment processes | 3.1 Operate pre-treatment processes. 3.2 Carry out basic adjustments to enhance system performance. 3.3 Determine chemical dosing requirements |
4. Complete documentation | 4.1 Collect and record process data 4.2 Report observations outside defined parameters for further action. |
Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.
performing calculations including ratios
reading and applying procedures and standards
giving and receiving instructions
identifying control system faults and operational problems
using verbal and written communication in the workplace
monitoring, operating and reporting on wastewater pretreatment processes, including at least one of:
screening
gravity and aerated grit chambers
gross pollution traps
removal and disposal of screenings
shredding
odour removal
oily water separators
riffle plate separators
planning and preparing for work
collecting and labelling samples and performing tests including, at least one of:
settling tests
pH
dissolved oxygen
suspended solids
chemical oxygen demand
inspecting plant and monitoring processes
collecting and recording data
operating and adjusting processes, including at least one of:
pH correction
dissolved oxygen levels
flow control
screen rotation frequency
solids removal
chemical additions
plant performance data
chemical usage
recording all required information
Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.
principles of and need for effective pre-treatment
system layout
policies, procedures and legislation applied to wastewater pre-treatment processes
relevant utilities and service bodies
communication systems
work-related calculations
risk factors and potential hazards relating to wastewater treatment
equipment operation, capacity and limitations
pumping and valving systems
control systems
impacts of hydraulic loads on processes
Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.
Some components of this unit require assessment in a workplace environment therefore the unit is not suitable for fully external or electronic based assessment.
Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.