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 develop and review the management plan for the operation and maintenance of drainage systems including:

gathering, interpreting and synthesising information (including historical system data, current legislation and standards, stakeholder views and monitoring results) to underpin the sound development of the drainage system management plan

consulting widely and effectively

developing effective drainage system management plans that address the water organisation's objectives and requirements

using data from monitoring arrangements to track the performance of the drainage system management plan and inform the review of the plan

preparing reports and recommendations for changes to the objectives of the management plan and its implementation.

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 enterprise policies

coordinate measuring and testing activities

use mathematical and scientific techniques to interpret test results

conduct investigations

interpret and apply environmental legislation

apply consultation and communication skills

assess environmental impacts.

Required knowledge:

relevant legislation

relevant enterprise policies

range of appropriate measuring and testing procedures

investigation procedures

customer expectations and requirements

enterprise financial systems and key performance indicators

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.

The drainage collection, transport, treatment and disposal system may include:

pipe and pumping systems

open drains and natural water courses

gross pollution traps

wetland treatment systems

stormwater outfalls

surface water run-off:

roads

pavements

roofs

parks

stormwater flow attenuation structures.

Historic drainage system information may include:

previous studies

impact of weather

relevant hydrological information

system models.

Stakeholder may include:

conservation groups

land care groups

general community

farming groups and individuals

mining groups and companies

catchment users

government (all levels)

quasi government organisations.

Legislative requirements may include:

relevant federal legislation

relevant state or territory legislation

relevant local government by-laws

relevant land care group agreements

relevant government and quasi government authorities' rules (eg Great Barrier Reef Marine Park Authority, Environment Protection Authority).

Information gathered by monitoring and testing may include:

physical analysis of water:

pH

conductivity

colour

turbidity

chemical analysis of water:

chlorine

alkalinity

biochemical oxygen demand

heavy metals

iron

manganese

microbiological analyses:

coliforms

plate counts

algae identification and counts

physical measures:

power

chemicals

water flows

sludge volumes

mechanical testing:

vibration

noise

temperature

fauna and flora surveys

stakeholder surveys.