Elements and Performance Criteria

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 of the candidate, accessibility of the item, and local industry and regional contexts.
Range of water and waste systems include:
water catchment systems
water storage systems
water treatment systems
water distribution systems
stormwater drainage systems
sewerage systems and sewerage treatment systems
trade waste treatment systems
Appropriate water industry terms include:
sewage versus sewerage
rising main or pressure main
reservoirs and tanks
standpipes
pumping stations
water and wastewater
stormwater
infiltration and inflow
pressure and head
flow
concentration
Ways for households to minimise water usage and increase available supply include:
installation of water saving fittings
behavioural change
roof water re-use
grey water recycling
Ways for communities to minimise water usage and increase available supply include:
use of tiered water access or rationing systems
promotion and use of incentives to drive behavioural change in consumers
planning changes to allow water recycling and re-use
introduction of third pipe systems in new housing estates.
Ways to increase sources include:
introduction of desalination plants
introduction of new treatment plants and re-use strategies
development of new catchment infrastructure
Environmental risks and impacts may include:
impact of mismanagement of potential pollutants
impact of mismanagement of biological agents and contaminants
impact of variable and changing water resources
community waste disposal
impact on urban and non-urban water catchment areas
impact on rivers, waterways and channels
water and wastewater treatment processes
trade waste treatment and disposal processes
construction and infrastructure
risk factors for catchment water quality
backflow and cross-connections
stormwater
function of wastewater and stormwater systems

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 research and interpret the water cycle, sustainable water usage and the testing of water quality including:
identifying and exploring the meaning of the water cycle and implications for community's use of water services
identifying and exploring systems and customer services offered by water industry organisations
identifying the factors which influence customer expectations and satisfaction
identifying and exploring factors that can contribute to sustainable water practices within communities and households
identifying and exploring strategies that can be employed to increase access to water resources
exploring and communicating factors affecting water quality
Context of and specific resources for assessment
Access to resources including:
library, water enterprise information, information sources for research and investigation
mentors, advisors and teachers able to guide and support research and investigation of water resource management
guided visits to key locations associated with water resource management
Access must be provided to appropriate learning and assessment support.
Assessment processes and techniques must take into account language, literacy and cultural factors which might have an impact on the candidate's demonstration of competency.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a variety of assignments and activities reflecting the scope and practical requirements of research and practical assignments
assessment can be through assignments, projects, excursions and 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 underpinning knowledge