Unit of competency Outline
Date retreived
21/07/2026 11:20 PM AWST
21/07/2026 11:20 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Conduct chlorine dosing of water at the point of supply
Conduct chlorine dosing of water at the point of supply
Unit of competency
National Code
DEFPH007A
DEFPH007A
State Code
AVV69
AVV69
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
Field of Education
030907 - Water And Sanitary Engineering
Original Release Date
Nominal Hours
0
Description
This unit covers the competency required to conduct chlorine dosing of water at the point of supply within the Australian Defence Force (ADF).
Notes
Elements and Performance Criteria
1. Prepare for chlorine dosing
- 1.1 Chlorines are used, handled and stored in accordance with organisational policies and procedures.
- 1.2 Chlorine residue level is established via field water testing.
- 1.3 Chlorine residue level is compared with national drinking water guidelines and information related to chlorine concentration to determine chlorine demand.
2. Perform chlorine dosing
- 2.1 Chlorine dosing is conducted in accordance with organisational policies and procedures.
- 2.2 Personal protective equipment is selected, fitted and used correctly.
- 2.3 Dosing is monitored to maintain parameters of dosing to achieve desired chlorine residue level.
- 2.4 Dosing faults are identified and acted on, in accordance with organisational policies and procedures.
3. Monitor chlorine dosing performance
- 3.1 Dosing samples are collected and field tested to confirm chlorine residue level and water quality.
- 3.2 Dosing data is collected, recorded and reported according to organisational policies and procedures.
- 3.3 Observations outside defined parameters are reported for further action.
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 in the Performance Criteria is detailed below.
Point of supply may include:
Trailer mounted water containers
Water distribution point
20 L water jerry cans
100 L water bladder
Organisational policies and procedures may include:
Clinical standards (state/territory and national)
Codes of ethics
Codes of practice
Environmental health policy
Health and hygiene guidelines
Health surveillance policy documents
Industry professional body standards
Industry standards (state/territory and national)
Organisational health policy directives
Pesticides manual
Relevant Australian Standards
Relevant Commonwealth Acts
Workplace safety guidelines
Chlorine residual level
is the concentration of chlorine remaining after the chlorine oxidised and performed its disinfection
Field water testing may include:
Faecal coliform bacteria
Free chlorine level (after addition)
pH
Physical characteristics (taste, colour, odour and temperature)
Radioactivity (as ordered)
Selected poisons (if presence is suspected, normally arsenic and cyanide, and may include mustard and nerve agents)
Total coliform bacteria
Total dissolved solids (TDS)
Turbidity
Chlorine demand
is the amount of chlorine participating in oxidation reactions during a specified contact period; chlorine in water rapidly oxidises organic matter including microorganisms
Chlorine dosage
is the amount of chlorine added to water; dosage is expressed as a concentration, normally in terms of milligrams per litre (mg/L)
Personal protective equipment may include:
Chemical resistant apron
Chemical resistant gloves
Eye protection
Dosing faults may include:
Chlorine residual level too high
Chlorine residual level too low
Insufficient contact time allowed
Water pH level too high
Water temperature too high
Point of supply may include:
Trailer mounted water containers
Water distribution point
20 L water jerry cans
100 L water bladder
Organisational policies and procedures may include:
Clinical standards (state/territory and national)
Codes of ethics
Codes of practice
Environmental health policy
Health and hygiene guidelines
Health surveillance policy documents
Industry professional body standards
Industry standards (state/territory and national)
Organisational health policy directives
Pesticides manual
Relevant Australian Standards
Relevant Commonwealth Acts
Workplace safety guidelines
Chlorine residual level
is the concentration of chlorine remaining after the chlorine oxidised and performed its disinfection
Field water testing may include:
Faecal coliform bacteria
Free chlorine level (after addition)
pH
Physical characteristics (taste, colour, odour and temperature)
Radioactivity (as ordered)
Selected poisons (if presence is suspected, normally arsenic and cyanide, and may include mustard and nerve agents)
Total coliform bacteria
Total dissolved solids (TDS)
Turbidity
Chlorine demand
is the amount of chlorine participating in oxidation reactions during a specified contact period; chlorine in water rapidly oxidises organic matter including microorganisms
Chlorine dosage
is the amount of chlorine added to water; dosage is expressed as a concentration, normally in terms of milligrams per litre (mg/L)
Personal protective equipment may include:
Chemical resistant apron
Chemical resistant gloves
Eye protection
Dosing faults may include:
Chlorine residual level too high
Chlorine residual level too low
Insufficient contact time allowed
Water pH level too high
Water temperature too high
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessment must confirm the ability to:
handle, store and used chlorine safely
accurately calculate chlorine dosing levels
identify and respond to dosing fault
Consistency in performance
Competency should be demonstrated over a minimum of two assessment occasions.
Context of and specific resources for assessment
Context of assessment
Competency should be assessed in an actual workplace situation. This may be in an urban or a field setting.
Specific resources for assessment
Access is required to:
appropriate equipment and stores
relevant organisational policies and procedures
Assessment must confirm the ability to:
handle, store and used chlorine safely
accurately calculate chlorine dosing levels
identify and respond to dosing fault
Consistency in performance
Competency should be demonstrated over a minimum of two assessment occasions.
Context of and specific resources for assessment
Context of assessment
Competency should be assessed in an actual workplace situation. This may be in an urban or a field setting.
Specific resources for assessment
Access is required to:
appropriate equipment and stores
relevant organisational policies and procedures
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| BBD14 | DEFPHL007 | Conduct chlorine dosing of water at the point of supply | Unit of competency |
