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Installing drainage in the workplace

Level 2
Credit Value
Guided Learning Hours
The aim of this unit is to illustrate the skills, knowledge and understanding required to confirm competence in installing drainage in the workplace within the relevant sector of industry.

Learning Outcomes Assessment Criteria
The Learner Will The Learner Can

Interpret the given information relating to the work and resources when installing drainage.

  • 1.1 - Interpret and extract relevant information from drawings, specifications, schedules, risk assessments, method statements and manufacturers' information. 
  • 1.2 - Comply with information and/or instructions derived from risk assessments and method statements.
  • 1.3 - Describe the organisational procedures developed to report and rectify inappropriate information and unsuitable resources and how they are implemented.
  • 1.4 - Describe different types of information, their source and how they are interpreted in relation to:
    – drawings, specifications, schedules, risk assessments, method statements, manufacturers' information, verbal, written and graphical instructions, permits, current regulations and official guidance governing the installation and construction of drainage systems. 

Know how to comply with relevant legislation and official guidance when installing drainage.

  • 2.1 - Describe their responsibilities regarding potential accidents, health hazards and the environment whilst working:
    – in the workplace, below ground level, in confined spaces, at height, with tools and equipment, with materials and substances, with movement and storage of materials by manual handling and mechanical lifting.
  • 2.2 - Describe the organisational security procedures for tools, equipment and personal belongings in relation to site, workplace, company and operative.
  • 2.3 - Explain what the accident reporting procedures are and who is responsible for making reports.

Maintain safe and healthy working practices when installing drainage.

  • 3.1 - Use health and safety control equipment safely and comply with the methods of work to carry out the activity in accordance with current legislation and organisational requirements when installing drainage.
  • 3.2 - Demonstrate compliance with given information and relevant legislation when installing drainage in relation to at least two of the following:
    – safe use of access equipment
    – safe use, storage and handling of materials, tools and equipment
    – specific risks to health.
  • 3.3 - Explain why and when health and safety control equipment, identified by the principles of prevention, should be used, relating to installing drainage, and the types, purpose and limitations of each type, the work situation and general work environment, in relation to:
    –collective protective measures
    –personal protective equipment (PPE)
    –respiratory protective equipment (RPE)
    –local exhaust ventilation (LEV).
  • 3.4 - Describe how the relevant health and safety control equipment should be used in accordance with the given instructions.
  • 3.5 - Describe how emergencies should be responded to in accordance with organisational authorisation and personal skills when involved with fires, spillages, injuries and other task-related activities.

Select the required quantity and quality of resources for the methods of work to install drainage.

  • 4.1 - Select resources associated with own work in relation to materials, components and fixings, and tools and equipment.
  • 4.2 -
    Describe the characteristics, quality, uses, sustainability, limitations and defects associated with the resources in relation to: –pipes, fittings and ancillary components –pre-cast (metal, concrete, clay or plastic) components –bricks, blocks and sandbags
    –granular materials, aggregates, cement, concrete, mortars and sand
    –sealant materials (adhesives, compounds, solvents)
    –hand tools, power tools and ancillary equipment.
  • 4.3 - Describe how to confirm that the resources and materials conform to the specification.
  • 4.4 - Describe how the resources should be used correctly and how problems associated with the resources are reported. 
  • 4.5 - Explain why the organisational procedures have been developed and how they are used for the selection of required resources.
  • 4.6 - Describe any potential hazards associated with the resources and methods of work.
  • 4.7 - Describe how to calculate quantity, length, volume, area and wastage associated with the method and procedure to install drainage.

Minimise the risk of damage to the work and surrounding area when installing drainage.

  • 5.1 - Protect the work and its surrounding area from damage in accordance with safe working practices and organisational procedures.
  • 5.2 - Maintain a clear and tidy work space.
  • 5.3 - Dispose of waste in accordance with current legislation.
  • 5.4 - Describe how to protect work from damage and the purpose of protection in relation to general workplace activities, other occupations and adverse weather conditions. 
  • 5.5 - Explain why the disposal of waste should be carried out safely in accordance with environmental responsibilities, organisational procedures, manufacturers’ information, statutory regulations and official guidance.

Complete the work within the allocated time when installing drainage.

  • 6.1 - Demonstrate completion of the work within the allocated time.
  • 6.2 - Describe the purpose of the work programme and explain why deadlines should be kept in relation to:
    – types of progress charts, timetables, productivity targets and time scales
    – how times are estimated
    – organisational procedures for reporting circumstances which will affect the work programme.

Comply with the given contract information to install drainage to the required specification.

  • 7.1 - Demonstrate the following work skills when installing drainage:
    – checking, measuring, marking out, cutting, laying, positioning, fitting, joining, levelling, plumbing, aligning, securing and testing.
  • 7.2 - Use and maintain hand tools, power tools and ancillary equipment
  • 7.3 - Lay bedding materials, install and test pipework (e.g. clay, concrete, metal or plastic) for new and/or replacement, foul and/or surface water drainage for at least one of the following to given working instructions:
    –inspection chambers (e.g. brick, concrete, metal or plastic)
    –surface water systems (e.g. cells, culverts, high capacity, linear, balancing ponds, interceptors, recycling equipment, soak-a-ways, sustainable urban drainage systems)
    –foul water systems (e.g. cess pools, septic tanks, reed beds, treatment plants)
    –surround pipe with specified materials
    –place backfill to trench using given work instructions for both compacted and free drainage material.
  • 7.4 - Describe how to apply safe and healthy work practices, follow procedures, report problems and establish the authority needed to rectify them, to:
    –excavate trenches and provide trench support
    –confirm ground conditions, site and excavations are suitable for the drainage installation work
    –recognise the dangers of loads and structures at the edge of excavations
    –deal with groundwater
    –work around other utility services
    –install geotextile materials
    –prepare different types of bedding for pipework e.g. sand, shingle, cementitious
    –determine levels and gradients
    –identify the differences between surface and foul water drainage
    –measure, mark and cut drainage materials
    –lay, position, level, plumb, align, fit, join, fix and secure new and replacement drainage systems
    –construct structures of a drainage system (storm alleviation, culverts, inspection chambers, lateral drains, overflows, sumps, filter drains, sustainable urban drainage systems)
    –assemble pre-cast components (metal, concrete, clay and plastic) of a drainage system structure (inspection chambers, street iron work)
    –connect and seal new systems to existing systems
    –prepare for conducting smoke, water, ball, air and mandrel tests on drainage systems
    –work, around and in close proximity to with plant and machinery including lifting equipment
    –store and dispose of removed drainage components
    –follow specified hygiene procedures particularly when dealing with foul water draining systems
    –recognise and determine when specialist skills and knowledge are required and report accordingly
    –determine specific requirements for structures of special interest, traditional build (pre 1919) and historical significance
    –use hand tools, power tools and equipment
    –work at height and below ground level
    –use access equipment.
  • 7.5 - Describe the needs of other occupations and how to communicate effectively within a team when installing drainage.
  • 7.6 - Describe how to maintain the tools and equipment used when installing drainage.
Assessment guidance and/or requirements
This unit must be assessed in a work environment, in accordance with the ConstructionSkills‘ Consolidated Assessment Strategy for Construction and the Built Environment. Please refer to the hyperlink for clarity -
Assessors for this unit must have verifiable, current industry experience and a sufficient depth of relevant occupational expertise and knowledge, and must use a combination of assessment methods as defined in the Consolidated Assessment Strategy.
Workplace evidence of skills cannot be simulated.
This unit must be assessed against own area of work.
This unit must be assessed against ONE of the endorsements:
- inspection chamber
- surface water system
- foul water system.