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Overview

Framework:
RQF
Level:
Level 3
Unit No:
F/617/1487
Credits:
6
Guided learning hours:
40 hours

Assessment Guidance

Learning Outcome 1:

Learners will research and produce a report documenting the UK’s current legislation and the local authority byelaws for a given location Learners will summarise the British Standards in relation to the management of domestic surface water systems.

Learning Outcome 2:

Using a set of given scenarios, learners will select the correct water management equipment providing a justification for this selection. Learners will produce calculations for the collection of water for a specified hard standing area and balance this against drainage diameters. Learners will produce a design drawing of a water management system for a given set of parameters and location.

Learning Outcome 3:

Prepare an area and install water management equipment.

Learning Outcome 4:

Learners will research and present a case study that demonstrates the use of SUDs in an urban environment

Aim

The learner will be aware of a range of domestic surface water management systems, how to install these and the environmental impact of Sustainable Urban Drainage Systems (SUDS).

Unit Learning Outcomes

1.

Understand the legislation and standards for domestic surface water management.

Planning Legislation

• use of hard standing surfaces
• requirements for self draining surfaces
• application to water authority
• application to highways authority

Building Regulations
• combined drainage systems
• separate drainage systems
• sewer connection
• soakaways
• rainwater harvesting
• Part H Approved Documents

British Standards
• BS4428: 1989 Code of Practice for General Landscaping Operations
• BS EN ISO 11091: 1999 Construction Drawings - Landscaping
• BS EN 295-1: 1991 Drainage
• BS EN 124: 1994 Gully’s and Manholes
• BS EN 1433:2002 Drainage Channels

Assessment Criteria

  • 1.1

    Describe current legislation in relation to domestic surface water management including local authority byelaws.

  • 1.2

    Explain relevant British Standards in relation to domestic surface water management.


2.

Explain how domestic surface water drainage management systems operates.

Surface Water Drainage Operation
• drainage falls
• use of pavers
• channels and gullies
• drainage excavation
• pipe installation, different materials
• bedding and surround

Calculating Runoff
• surface area dimensions
• area calculation
• conversion to litres/second
• drain capacity
• capacity check
• soakaway capacity
• soakaway check

Design Domestic Water Management Systems
• establish levels
• scale to be used
• legend established
• drawing produced
• annotations

• final presentation

Assessment Criteria

  • 2.1

    Explain how surface water drainage operates.

  • 2.2

    Calculate the water run off from a specified area.

  • 2.3

    Produce a design drawing of a domestic water management system.


3.

Be able to construct a water management system.

Drainage Preparation
• read design drawing
• establish finished surface levels and falls
• establish drainage connection invert level
• construct profile boards
• construct traveller
• assemble required resources

Installation of Drainage
• excavate to formation level
• lay pipe bedding
• lay pipe, plastic or clay
• check falls
• lay pipe covering
• installation of gully,
• installation of channel
• backfill as required
• hard landscaping bedding

Assessment Criteria

  • 3.1

    Prepare an area to receive drainage.

  • 3.2

    Construct a suitable drainage system following specified falls.


4.

Understand  Sustainable Urban Drainage legislation and its impact on landscape construction.

Sustainable Urban Drainage
• soakaways
• rainwater recycling
• absorbent paving
• porous tarmac
• swales
• lakes and ponds
• grassed areas
• water barrels, buts
• storage tanks
• reed beds

Traditional Surface Water Drainage
• hard surface run off to gully
• gully connection to main sewer
• use of concrete

Assessment Criteria

  • 4.1

    Explain Sustainable Urban Drainage legislation.

  • 4.2

    Analyse how the legislation impacts on landscape construction.

  • 4.3

    Explain the environmental impacts of Sustainable Urban Drainage system in an urban setting.


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