Assessor Resource

Evaluate, implement and monitor high-risk trade waste discharge approvals

Assessment tool

Version 1.0
Issue Date: March 2019

This unit supports the attainment of skills and knowledge required for trade waste officers or inspectors with a specific responsibility for managing applications and approvals for high-risk liquid trade waste discharges to wastewater collection systems from large and complex industrial organisations.

This unit of competency describes the outcomes required to assess and process applications for high-risk trade waste discharges from large and complex industrial organisations, monitor compliance with the trade waste approval issued and renew, amend, suspend or revoke trade waste discharge approvals as appropriate.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


Not applicable.

Employability Skills

The required outcomes described in this unit of competency contain applicable facets of employability skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged, will assist in identifying employability skill requirements.

Evidence Required

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.

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for the Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The candidate should:

demonstrate consistent performance for each element across a representative range of applications

meet the Performance Criteria associated with each element by employing the techniques, procedures, information and resources available in the workplace from those listed in the Range Statement

demonstrate an understanding of the underpinning knowledge and the application of skills as described under Knowledge and Skills.

The candidate should demonstrate the ability to evaluate, implement and monitor high risk trade waste approvals, including:

advising customers of the trade waste management policies and procedures in operation

advising customers of requirements for obtaining and complying with trade waste discharge approvals

assessing and evaluating applications for high-risk trade waste treatment and disposal

implementing charging and monitoring procedures

completing records and reports.

Context of and specific resources for assessment

Access to the workplace and resources including:

documentation that should normally be available in a water industry organisation

relevant codes, standards, and government regulations.

Where applicable, physical resources should include equipment modified for people with disabilities.

Access must be provided to appropriate learning and/or assessment support when required.

Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice

a decision of competence should only be made when the assessor has complete confidence in the person's competence over time and in various contexts

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence

where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time

assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit.

In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the operator, any cultural issues that may affect responses to the questions, and reflecting the requirements of the competency and the work being performed.

Method of assessment

The following assessment methods are suggested:

assessment in the workplace or in a simulated workplace and under the normal range of workplace conditions

assessment should also be conducted in conjunction with aspects of technical competencies that are consistent with the work environment

techniques for gathering evidence of competency may include:

observation of performance

written and/or oral questioning to assess knowledge and understanding

completion of workplace documents and reports produced as part of routine work activities

third party reports from experienced practitioners

completion of performance feedback from supervisors and colleagues.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

This describes the essential skills and knowledge and their level, required for this unit.

Required skills:

interpret and review hydraulic, architectural and site plans

identify and evaluate trade waste-producing processes

evaluate process inputs and outputs using relevant methodologies such as Mass Balance and Process Yield

apply risk assessment and management based on AS4360

use flow measuring or flow assessment techniques

use appropriate wastewater sampling and preservation techniques for onsite and laboratory testing

interpret and evaluate sample analysis data

interpret and apply legislation and policies applicable to trade waste

develop monitoring plans and coordinate measuring, testing and sampling activities

plan and conduct investigations

assess environmental impact using ISO14001 where appropriate

assess waste treatment methods, processes plant and equipment

negotiate and communicate

use appropriate personal protective equipment for protection against physical, chemical and biological hazards.

Required knowledge:

relevant legislation

relevant enterprise policies for trade waste management

water quality parameters of significance to the wastewater system

personal protection and safety precautions for wastewater sampling, including the requirement for relevant inoculations, such as:

Q Fever

Hepatitis A and B




industrial waste treatment methods and processes for high risk industrial organisations

hydraulics, chemistry and/or equivalent science

basic knowledge of wastewater collection, treatment and disposal systems

investigation procedures

range of appropriate measuring, testing sampling procedures

customer expectations and requirements

occupational health and safety legislation.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the Performance Criteria, is detailed below. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.

Customers may include:

new or existing wholesale commercial organisations

new or existing large and complex manufacturing and industrial organisations.

new or existing large community facilities such as hospitals and educational institutions.

High risk trade waste may include:

the liquid waste generated by any business or industry which involves one or more of the following characteristics:

high discharge rates

large discharge volumes

high contaminant concentrations

large contaminant loads

contaminants of OHS concern

contaminants of environmental/ecological concern

trade waste does not include domestic wastewater.

Organisational and statutory requirements may include:

relevant legislation, for example:

commonwealth environmental legislation

state water legislation

state environmental legislation

local by-laws

International Standards, for example:

ISO 14000 standards

Australia/New Zealand Standards, for example:

National Plumbing and Drainage Code ASNZS3500

relevant industry codes of practice for the management of trade waste, for example:

industry Code of Practice for the Photographic Industry (PURE)

National Health and Medical Research Council's (NHMRC) National guidelines for waste management in the health care industry, 1999

state plumbing and drainage code of practice

requirements of regulatory authorities, such as:

Water Authorities



Health Department

local councils.

Documentation may include:

identification of all waste producing processes

detailed process information including all inputs and outputs

water balance

site hydraulic plan

site plan

equipment specification and process information for the proposed pre-treatment facility

proposed flow measurement and other monitoring facilities

proposed monitoring plan

relevant environmental impact assessments

proposed chemical and waste management contingency plans

proposed effluent improvement plan

stormwater drainage plan.

Local sewerage issues may include:

impact of proposed wastewater quantity and quality on the environment including odour management

effluent management, re-use and disposal

biosolids management, re-use and disposal

impact on health and safety of water utility employees

impact of proposed wastewater quantity and quality on the sewerage infrastructure

impact of proposed wastewater quantity and quality on the sewage treatment processes

Monitoring activities andschedules may include:

inspections of trade waste sites, processes and treatment facilities

meter reading and discharge volume recording

maintenance and calibration schedules and reporting

sampling and testing locations, techniques and frequencies

customer self monitoring programs and reporting

on-line monitoring and/or alarms

record keeping and reporting.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Comprehensively answer customer queries regarding applications for high-risk trade waste approval with reference to organisational and statutory requirements. 
Comprehensively answer customer queries regarding the procedures involved in processing and approving trade waste applications with reference to organisational requirements. 
Comprehensively answer customer queries regarding the procedures involved in monitoring and renewing trade waste applications with reference to organisational requirements. 
Identify significant pollutants generated by new types of industries, processes or sources. 
Identify, interpret and assess information about known impacts, risk assessments and control. 
Identify trade waste management processes and workplace procedures for new types of industries, processes or sources. 
Develop and check contingency plans for new types of industries or processes. 
Prepare trade waste management policies and plans for new types of industries and processes. 
Assess high-risk trade waste applications to establish that all necessary documentation has been provided. 
Assess high risk trade waste applications against concentration, mass and flow limits, discharges of prohibited substances, local sewerage issues and consider environmental issues. 
Assess proposed pre-treatment systems for suitability. 
Assess monitoring, control systems and procedures for suitability. 
Assess the adequacy of chemical storage, handling and spill prevention as appropriate. 
Schedule and conduct onsite inspections as required. 
Determine approval conditions on the basis of assessments and discuss with the applicant. 
Calculate estimates of charges and discuss with the customer according to established charging policies and formulae. 
Where applicable, monitor construction and commissioning activities to ensure compliance with approvals. 
Determine monitoring activities and schedules and discuss with the customer. 
Create and maintain database records, including charging parameters and monitoring schedule. 
Conduct routine monitoring of the compliance of customers' trade waste treatment and discharge according to the trade waste approval and organisational requirements. 
Establish processes to identify and report non-compliances with trade waste approvals according to organisational requirements. 
Identify and implement enforcement measures and processes to manage identified non-compliances. 


Assessment Cover Sheet

NWP526A - Evaluate, implement and monitor high-risk trade waste discharge approvals
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Assessment Record Sheet

NWP526A - Evaluate, implement and monitor high-risk trade waste discharge approvals

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