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 the ability to implement and manage the treatment management plan for wastewater treatment activities including:

gathering, interpreting and synthesising information (including historical data, current legislation and standards, stakeholder views and the results of wastewater treatment testing and monitoring) to underpin the implementation of the wastewater treatment processes management plan

planning and implementing testing processes and programs

monitoring and evaluating the outcomes of the wastewater treatment processes management plan

providing advice and communicating with stakeholders and users

preparing reports and recommendations for future action.

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.

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

Required skills:

communicate effectively

plan effectively

prepare reports

interpret and apply legislation and policies

coordinate measuring and testing activities

use mathematical and scientific techniques to interpret test results

conduct investigations

assess environmental impacts

coordinate operation and maintenance activities.

Required knowledge:

relevant legislation

relevant enterprise policies

range of appropriate measuring and testing procedures

investigation procedures

risk management principles

customer expectations and requirements

enterprise financial systems and key performance indicators

environmental legislation

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.

Legislation may include:

relevant federal legislation

relevant state or territory legislation

relevant local government by-laws

Australian Standards.

Environmental factors that impact on the treatment process may include:

Flora

Fauna

organic and inorganic chemicals

sediment impacts in discharge environment

nutrients

oils and greases

pesticides

trade waste

communities activities and attitudes

natural events (eg floods, fires)

industry activities and attitudes

micro-organisms

odour dispersion.

Monitoring may include:

process control monitoring

mechanical and electrical maintenance schedules

mechanical and electrical equipment condition

licensing requirements

legislative requirements

chemical, physical, biological and microbiological quality.

Testing may include but not be limited by:

physical analysis of wastewater:

pH

conductivity

suspended solids

chemical analysis of wastewater

chlorine

nutrients

chemical oxygen demand

heavy metals

microbiological analyses:

coliforms

plate counts

algae identification and counts

physical measures:

power

chemicals

wastewater flows

sludge volumes

mechanical testing:

vibration

noise

temperature.

Customers may include:

individual consumers

regulators

suppliers

government

community or specific enterprises

industry.