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Elements and Performance Criteria

1. Prepare for underwater survey
   • Identify and determine survey task and available worksite data
   • Develop survey plan consistent with dive plan in accordance with organisational procedures
   • Select and inspect survey equipment
   • Secure survey equipment to/from dive site
   • Assess access obstructions and other underwater hazards to determine risks and manage risk control measures in accordance with dive plan
2. Conduct underwater survey
   • Secure survey equipment on self for ease of accessibility and lack of interference to mobility and dive equipment
   • Measure bottom gradient in accordance with survey plan
   • Determine bottom composition and identify and record sub-surface features, channels and obstacles, in accordance with survey plan
3. Complete post survey procedures
   • De-service and store survey equipment after use in accordance with organisational procedures
   • Document survey results and submit in accordance with organisational procedures and survey plan

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the Companion Volume Implementation Guide.

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one underwater survey of a beach/waterway (which should include at least two of: bottom gradient, bottom composition, sub surface features marking of obstacles/channels) and include: applying relevant legislation, standards and organisational policies and procedures applying safe diving principles and relevant risk control measures carrying and securing equipment throughout dive determining scope of survey task developing beach and underwater survey plans documenting beach/waterway survey outcomes including: measuring bottom gradient determining bottom composition recording waterway sub-surface features identifying obstacles/channels and waterway hazards making underwater field notes and sketches using survey equipment relevant to beach and underwater surveys effectively.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of: dive equipment dive physics dive physiology and medicine including: heat and cold illnesses compression illnesses decompression illnesses diving descent and ascent techniques general diving safety awareness including: diving in harbours diving in tidal waters, currents and tides diving on and/or near a ship’s bottom lost/separated entrapment/foul lines marine animal threats pollution/weeds working in confined spaces oceanography relevant legislation, and organisational policies and procedures relevant organisational documentation relevant references and Australian Standards underwater beach/waterway survey techniques including: waterway bottom gradient waterway bottom composition waterway sub-surface features obstacles/channels and waterway hazards underwater workplace hazards.

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