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. 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) may also be included. |
Client requirements may include: | architectural plansbriefssite conditionsstatutory bodiesstandards and codes specifications. |
Local government, Environment Protection Authority, and relevant Australian standards and code requirements may include: | local government requirements, including:Australian rainfall and run-off documentationIntegrated Planning Act (IPA)other regulatory requirementsstandard drawings and detailstown planning requirementsurban design manualstreatment requirements, such as:screenssilt trapssolid removal systemsenvironmental requirements to cover water quality management, including:clean-up protectionstormwater protectionwaste managementAustralian standards and codes, including:National Construction CodeAS/NZS3500 National plumbing and drainage. |
Other documentation relevant to the design must include plans, drawings, manuals and reports regarding: | buildingscatchment area analysiscivil drawingscontour levelsexisting servicesmanufacturer requirements and specificationsreduced levelssite plansstormwater designsurveys. |
System components may include: | access chambers (manholes)channelsculvertsdownpipesfire rating of penetrationsgrated pitsgulliesgutteringinspection chambersinspection openingskerbspipingpits. |
Treatment and disposal options for stormwater discharge may include: | treatment options:grass and rock swaleslagoonsmomentum diffuserspondsscreenssilt trapstrapsother solid removal systems as determineddisposal options:connection to stormwater mainscreeksharbourkerb and street channelslakeson-site harvesting and reuserainwater collection systems, including tanks and damsriversstreams. |
Rainfall intensities are determined by: | average rainfall intervalsroof, surface and subsurface calculationssite locationtime and concentration. |
Catchment areas must include: | land surface catchment areas, including a variety of surface conditions such as grassed and paved areasroof catchment areas. |
Stormwater drainage systems may include: | access chambers (manholes)collection sumpsdetention and retentiongrade of drainsharvestingholding pitspump discharge. |
Approved materials may include: | piping materials:concreteearthenware or vitrified clay pipe (VCP)fibre cement (FRC)polyvinyl chloride (PVC)other approved materialsfittings:bendsgratesgulliesjunctionsnon-return valves. |
Stormwater systems requiring pumping must include: | holding tanksoverflow provisionspump and controlsrising main. |
Sustainability principles and concepts: | cover the current and future social, economic and environmental use of resourcesmay include:selecting appropriate material to ensure minimal environmental impactharvesting and reuseefficient use of materialefficient energy usage/capital outlay comparisoneffect on the environment due to overflow or leakageconsideration of the Green Building Council of Australia rating scheme. |
Plans: | may include:cross-sectionsdetailselevationssectionssitemay be produced using:computer generationdrawing equipment. |
Specification and user manuals may include: | commissioningbeddingsupportconcrete support and detailing specialised componentsjointingaccess chambers (manholes)manufacturer requirementsmaterialspumpssafety (WHS)testingworkmanship. |