LUL - 1-052
Civil Engineering - Gravity Drainage Systems
|Publication Date:||1 October 2007|
This standard applies to Gravity Drainage System assets owned by LU.
This Standard defines the responsibilities involved during the life cycle of the assets and sets out the requirements for:
Inception and design
Construction, installation, testing and commissioning
Upgrading and Renewal
Evidence of compliance
This standard replaces 2-01304-003 A1. The Standard has been re formatted and renumbered. There were no technical changes.
The purpose of this Standard is to define the life cycle requirements for Gravity Drainage System assets. These assets comprise:
Track and off track drainage systems
Gravity pipes - Non Brick
Gravity pipes - Brick
Soakaways (Non Section 12 areas only)
Flow control device
Pipe crossings up to 600 mm nominal bore
Open ditches (Non Section 12 areas only)
Screens (Non Section 12 areas only)
Interstices between the pipe bedding
Station drainage systems
Gravity pipes (including those carrying grey and/or foul waste from sanitary ware)
Flow control devices
This standard does not cover building drainage, sanitary ware, roof drainage, guttering or down pipes. These are dealt with in LU Standards 1-068 (Station and Mechanical Services, Utility Provision and Energy Management), and EME-ST-01-018 (Mechanical Services Design).
Requirements for Pumping Systems are given in LU Standard 1-056 (Civil Engineering - Pumping Systems).
In defining requirements specifically applicable to Gravity Drainage System assets, this Standard complements LU Standard 1-050 (Civil Engineering - Common Requirements) that defines mandatory requirements generally applicable to all Civil Engineering assets including the Gravity Drainage System assets.
A supporting Manual of Good Practice G-052 gives guidance and historical information specific to LU Gravity Drainage System assets.