Modification History
Not applicable.
Unit Descriptor
This unit covers controlling construction site water table in the civil construction industry. It includes: planning and preparing; installing drainage and dewatering systems; establishing water treatment systems; operating, maintaining and removal of the systems; and cleaning up.
Application of the Unit
This unit is appropriate for those working in a operational roles, at worksites within:
- Civil construction
Licensing/Regulatory Information
Refer to Unit Descriptor.
Pre-Requisites
Not applicable.
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
1. Plan and prepare |
1.1. Access, interpret and apply compliance documentation relevant to construction site water table drainage and dewatering systems 1.2. Obtain, confirm and apply work instructions to the allotted task 1.3. Obtain, confirm and apply safety requirements to the allotted task 1.4. Identify, obtain and implement signage requirements from the project traffic management plan 1.5. Select plant, tools and equipment to carry out tasks that are consistent with the requirements of the job, and check them for serviceability and rectify or report any faults 1.6. Identify, confirm and apply environmental protection requirements from the project environmental management plan to the allotted task |
2. Install site drainage/ dewatering system |
2.1. Identify proposed permanent stormwater outlets from site plans and drawings 2.2. Erect barricades around the excavation/ installation area 2.3. Construct sumps and wells to specified levels and locations 2.4. Install well points, spears or wick drains to specified configuration and required depths 2.5. Place gravel and filter material in spears, sumps and wells to level above that of existing water table 2.6. Install surface or submersible pumps in designed locations to spears, sumps and wells 2.7. Connect suction hoses to sumps, wells, spears and pumps in accordance specifications and site designed drainage 2.8. Fit pipes and hoses to well points, spears and pumps in accordance with specifications and site designed drainage |
3. Establish stormwater treatment system |
3.1. Set out holding pond and support construction operations 3.2. Monitor and respond to water quality and treatment standards 3.3. Release water which meets the approved quality criteria into the main system |
4. Operate and maintain drainage and dewatering system |
4.1. Activate pumps to lower water table level to designed requirement 4.2. Maintain pumps 4.3. Maintain site drainage and dewatering system to maximise water flow to project requirements |
5. Remove and make good |
5.1. Disconnect and remove pumping system 5.2. Withdraw and remove well points and spears 5.3. Restore area to environmental management plan |
6. Clean up |
6.1. Clear work area and dispose of or recycle materials in accordance with project environmental management plan 6.2. Clean, check, maintain and store plant, tools and equipment |
Required Skills and Knowledge
This section describes the skills and knowledge required for this unit. |
Required skills |
Specific skills are required to achieve the performance criteria in this unit, particularly for the application in the various circumstances in which this unit may be applied. This includes the ability to carry out the following as required to control construction site water table:
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Required knowledge |
Specific knowledge is required to achieve the Performance Criteria of this unit, particularly its application in a variety of circumstances in which the unit may be used. This includes knowledge of the following, as required to control construction site water table:
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Evidence Guide
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. |
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Overview of assessment |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
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Context of and specific resources for assessment |
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Method of assessment |
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
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Guidance information for assessment |
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues. |
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, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
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Relevant compliance documentation may include: |
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Drainage and dewatering systems are to include: |
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Temporary drainage systems may include: |
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Work instructions may include: |
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Safety requirements may come from the site safety plan and organisational policies and procedures and may include: |
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Tools and equipment are to include: |
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Environmental Requirements are to include: |
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Materials may include: |
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Unit Sector(s)
Water Management
Competency field
Refer to Unit Sector(s).
Co-requisite units
Not applicable.