Application
This unit describes the skills required to monitor and operate chlorine dioxide systems and to report on process quality control.
This unit applies to those working as operational staff with specific responsibility for ensuring chlorine dioxide system processes comply with organisational requirements.
The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to, particularly those relating to WHS and hazardous substance handling.
Those undertaking this unit would work under supervision while performing routine tasks in a range of familiar contexts.
No licensing, legislative or certification requirements apply to unit at the time of publication.
Elements and Performance Criteria
ELEMENTS | PERFORMANCE CRITERIA |
Elements describe the essential outcomes | Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section. |
1. Plan and prepare for work | 1.1 Determine work requirements from standard operating procedures. 1.2 Select and check equipment and tools required to meet safety requirements of task and site. 1.3 Select, fit and use personal protective equipment. |
2. Monitor system performance | 2.1 Monitor chlorine dioxide processes. 2.2 Collect process samples and conduct standard tests. 2.3 Maintain and monitor relevant WHS requirements. |
3. Prepare and apply chemical dosing | 3.1 Handle, use and store chemicals. 3.2 Prepare chemical dosing. 3.3 Maintain information relating to chemical supply and usage according to statutory requirements. |
4. Complete documentation | 4.1 Collect and report process data. 4.2 Review information and contribute to enterprise processes for continuous improvement and incident management. |
Evidence of Performance
Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.
applying policies, regulatory standards and standard operating procedures
giving and receiving instructions
performing chlorine dioxide calculations
identifying control system faults and operational problems
identifying hazards
conducting microbiological and chlorine dioxide residual sampling
using literacy skills in regard to verbal and written communication in the workplace
interpreting material safety data sheets (SDS)
scheduling work
selecting and using appropriate tools and equipment, including personal protective equipment
monitoring chlorine dioxide disinfection processes
collecting process samples and performing standard tests
collecting and reporting process data, including at least one of:
pH
chlorine dioxide residuals
preparing and applying chemical dosing, including at least one of:
pH adjustment (lime, soda ash or caustic)
generation of chlorine dioxide (sodium chlorite, hydrochloric acid, sodium hypochlorite and/or liquefied chlorine)
Evidence of Knowledge
Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.
properties and chemistry of chlorine dioxide
pH
microbiological water quality guidelines
chlorine dioxide system layout
lockout procedures for mechanical and electrical installations
policies, standard operating procedures and legislation
communication systems
hazardous substances handling
risk factors and potential hazards associated with chlorine dioxide
work-related chlorine dioxide calculations
chlorine dioxide dosing processes
chlorine dioxide generation equipment operation, capacity and limitations
effects of weather and conditions on operation of site or plant
pumping and valving systems
automatic feed rate control systems
SDS
understanding of the risk management principles of ADWG and/or AGWR
Assessment Conditions
Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.
Some components of this unit require assessment in a workplace environment therefore the unit is not suitable for fully external or electronic based assessment.
Consideration must be given to holistic assessment for this unit. Refer to advice in the companion volumes.
Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.
Foundation Skills
The foundation skills demands of this unit have been mapped for alignment with the Australian Core Skills Framework (ACSF). The following tables outline the performance levels indicated for successful attainment of the unit.
Further information on ACSF and the foundation skills underpinning this unit can be found in the Foundation Skills Guide on the GSA website.
Competency Field
Treatment