DEFDV012B
Perform underwater beach and waterway surveys

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.

Application

As agreed in the creation of this Training Package, applications for units transferred from the PUA00 Public Safety Training Package will be developed as part of continuous improvement plans, and taking into account the change in Unit of Competency format as detailed in templates for Streamlined Training Packages.


Prerequisites

DEFDV001B Dive using self contained underwater breathing apparatus in open water to 30 metres.


Elements and Performance Criteria

ELEMENT

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.

Required Skills

This describes the essential skills and knowledge and their level, required for this unit.

Required Skills

ability to dive

make oral presentations

make underwater field notes and sketches

measure instruments

take photographs

write reports

Required Knowledge

dive physics

dive equipment

general occupational/diving safety awareness

oceanography

relevant references and Australian Standards

work hazards

Evidence Required

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.


Range Statement

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


Sectors

Not applicable.


Employability Skills

This unit contains employability skills.


Licensing Information

Not applicable.