Unit of competency Outline
Date retreived
24/07/2026 7:29 AM AWST
24/07/2026 7:29 AM 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.
Perform underwater beach and waterway surveys
Perform underwater beach and waterway surveys
Unit of competency
National Code
DEFDV012B
DEFDV012B
State Code
AVV13
AVV13
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
Field of Education
080317 - Quality Management
Original Release Date
Nominal Hours
0
Description
This unit covers the competency required to conduct underwater surveys of beaches and waterways such as estuaries and lakes.The unit includes conducting the survey for reasons relating to the potential establishment of structures such as bridges or piers, or to determine the feasibility of establishing a beach-head.Note: This Unit of Competency relates, in part, to the existing standards of the Australian Diver Accreditation Scheme (ADAS). All information was correct at the time of development of this Unit of Competency; however, any diver seeking ADAS accreditation should consult ADAS and not rely on the information contained in this unit.
Notes
Elements and Performance Criteria
1. Prepare for underwater survey
- 1.1 Survey task and available worksite data are determined and analysed.
- 1.2 Survey plan is developed consistent with the dive plan.
- 1.3 Survey equipment is selected, inspected and prepared.
- 1.4 Survey equipment is secured safely to/from the dive site.
- 1.5 Access obstructions and other hazards are assessed and action is taken to remove/reduce the risk.
2. Conduct underwater survey
- 2.1 Survey equipment is secured on self for ease of accessibility and lack of interference to mobility and dive equipment.
- 2.2 Bottom gradient is measured.
- 2.3 Bottom composition is determined and sub-surface features, channels and obstacles are identified and marked.
3. Conduct post-survey procedures
- 3.1 Survey equipment is de-serviced and stored after use.
- 3.2 Survey report is drafted and submitted according to organisational procedures.
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.
Worksite data may include:
current
depth
gradient
hazards
obstacles
temperature
Survey equipment may include:
angle measurement devices
compass
depth gauges
geo-positioning systems
hand-held sonar
jackstays
locator beacons
marking devices
photographic equipment
sounding lines
writing tablets
Action to remove/reduce the risk may include:
erecting signage
using patrol/sentry craft
Sub-surface features may include:
obstacles
reefs
rocks
troughs
Report may include:
imagery
oral presentation
scaled drawings
sketches
supporting documents
Worksite data may include:
current
depth
gradient
hazards
obstacles
temperature
Survey equipment may include:
angle measurement devices
compass
depth gauges
geo-positioning systems
hand-held sonar
jackstays
locator beacons
marking devices
photographic equipment
sounding lines
writing tablets
Action to remove/reduce the risk may include:
erecting signage
using patrol/sentry craft
Sub-surface features may include:
obstacles
reefs
rocks
troughs
Report may include:
imagery
oral presentation
scaled drawings
sketches
supporting documents
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessment must confirm the ability to carry and secure the equipment throughout the dive; to contribute to compiling a survey report; and to work safely throughout the operation.
Consistency in performance
Competency should be demonstrated during a survey task conducting at least one underwater survey of a beach/waterway including the following:
bottom gradient
bottom composition
subsurface features marking of obstacles/channels.
Context of and specific resources for assessment
Context of assessment
Competency should be assessed in the ocean.
When practicable, assessment should relate to the diver’s vocational focus.
Specific resources for assessment
Access to a complete range of diving, safety and accessory equipment; and survey equipment.
Assessment must confirm the ability to carry and secure the equipment throughout the dive; to contribute to compiling a survey report; and to work safely throughout the operation.
Consistency in performance
Competency should be demonstrated during a survey task conducting at least one underwater survey of a beach/waterway including the following:
bottom gradient
bottom composition
subsurface features marking of obstacles/channels.
Context of and specific resources for assessment
Context of assessment
Competency should be assessed in the ocean.
When practicable, assessment should relate to the diver’s vocational focus.
Specific resources for assessment
Access to a complete range of diving, safety and accessory equipment; and survey equipment.
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| BBC32 | DEFWDV012 | Perform underwater beach and waterway surveys | Unit of competency |
