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 WSAA Codes

Document Improvement Request
We are keen to ensure that the MRWA Codes and Supplements are efficient and practical. Your help is appreciated, your suggestions and comments for future revisions of the codes and supplements can be sent to us through the documents improvement request form.
Water Codes
 
MRWA WSAA Water Code
WSA 03-2011-3.1 (MRWA) EDITION Version 2.0
Drinking water supply assets are to be designed and constructed in accordance with the Melbourne Retail Water Authority (MRWA) edition of the Water Code. This code sets out t​he particular​ requirements of the Melbourne retail water businesses and includes both descriptive text and typical drawings.
To obtain this industry code please visit the WSAA National Codes Page.
Please note: The superseded MRWA Dual Water Systems Supplement Version 1.1 has been removed from this webpage. To obtain a copy of this specification for reference purposes, please contact a MRWA Water Agency Administrator here.
Sewerage Codes
 
MRWA WSAA Sewerage Code
WSA 02-2014-3.1 (MRWA) EDITION Version 2.0
Sewerage system assets are to be designed and constructed in accordance with the Melbourne Retail Water Authority (MRWA) edition of the Sewerage Code. This code sets out the particular requirements of the Melbourne retail water businesses and includes both descriptive text and typical drawings.
To obtain this industry code please visit the WSAA National Codes Page.
 
 
WSAA Pressure Sewer Code
WSA 07-2007-1.1
The WSAA Pressure Sewerage Code of Australia covers the planning, design, products and materials of reticulation networks up to and including DN 300, it includes information about on-property design, collection/grinder pump units and service connection pipework, as well as air management in pressure sewer systems. Construction, testing and commission are also addressed, supported by standard drawings.
To obtain this industry code please visit the WSAA National Codes Page.
This supplement specifies the Melbourne Retail Water Agencies' requirements where they are different or additional to the requirements of the WSAA Pressure Sewerage Code. Please note: this supplement takes precedence over the WSAA Code.
 
 
WSAA Sewerage Pumping Station Code
WSA 04-2005-2.1
The WSAA Sewerage Pumping Station Code covers the planning, design and construction of pumping stations and pressure mains up to and including 200 litres per second and DN 375, respectively. This second edition now includes a design program for sizing pressure mains, complete technical requirements for construction, testing and commissioning along with a selection of standard drawings.
To obtain this industry code please visit the WSAA National Codes Page.
WSAA Sewerage Pumping Station Supplements
Individual supplements exist for each of the MRWA agencies, please vist their standard pages for more information about these supplements.
 
 
WSAA Vacuum Sewerage Code
WSA 06-2008-1.3
The WSAA Vacuum Sewerage Code of Australia covers the planning, design and construction of vacuum sewers up to and including DN 300, vacuum service connections and property connection sewers.
To obtain this industry code please visit the WSAA National Codes Page.
 
 
WSAA Conduit Inspection Reporting Code
WSA 05-2013-3.1
The WSAA Conduit Inspection Reporting Code focuses on condition assessment of conduits such as sewers, sanitary and stormwater drains, as well as maintenance structures. It replaces the Sewer Inspection Reporting Code that was published in 2002. This 2nd edition includes new codes to better describe some defects, a revised scoring system that recognises different relevances of particular defects on rigid and flexible pipes, revised structural and service grading thresholds, acceptance limits for defects for newly constructed sewers.
To obtain this industry code please visit the WSAA National Codes Page.
Pipeline Codes
 
WSAA Polyethylene Pipe Line Code
WSA 01-2004-3.1
The WSAA Polyethylene (PE) Pipeline Code provides water industry practitioners with best practice guidelines in the use of PE pipeline systems and covers, pressure pipelines, non-pressure sewerage pipelines, vacuum sewer systems using polyethylene and pipe relining using polyethylene. The 3rd edition of the Code builds on the experience and confidence of the urban water industry with use of PE pipelines. Revisions include fitting design factors, amendments to jointing requirements, general test procedures for pressure applications, comments on use of repair clamps, advice and limitations for squeeze-off, new stiffness class requirement for non-pressure applications, additional option for internal colour of non-pressure pipes and new prerequisites for training.
To obtain this industry code please visit the WSAA National Codes Page.
 
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 Specs & Guidelines

Specifications
This MRWA specification sets out the principle requirements for the backfill and compaction of soils in excavations associated with the construction of water supply and sewerage assets. This specification refers to the trenchfill zone and not the embedment zone (for details of embedment zone requirements, refer to the MRWA Edition of the WSAA Water Supply and Sewerage Codes). This specification also applies to fill associated with assets constructed by tunnels, drives, shafts, bores and other trenchless technologies. Deep compressible clays (Coode Island Silt) are outside the scope of this specification.
A link to the MRWA Backfill Specification 04-03.1 used by South East Water and Yarra Valley Water has been provided above for your reference.
This MRWA specification details the principles and requirements of managing water quality and environmental risks in new drinking water main works and how to verify that water quality is acceptable before a new main is accepted into service.
Manual containing survey, certification forms, subdivisional digital input, water supply digital input sewerage digital input manuals.
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Guidelines
This guideline details the requirements for building or conducting works near water retailer sewer and water assets. The information will help you to maximise the use of land while adhering to best practice procedures. The guideline also aims to protect and maintain access to water and sewer assets. With simple explanations and diagrams for ease of understanding, the guideline provides information for everyone to use, whether it be an Engineer, a constructor, resident, builder or a plumber.
These guidelines document the necessary water metering and water servicing conditions required by the Water Businesses for new developments, alterations to existing developments and existing water metering arrangements. These guidelines are not a technical document and should be used as a guide and for illustrative purposes only. For more detailed technical information refer to AS / NZS3500 pt 1 2003 National Plumbing and Drainage Code and Water Services Association of Australia (WSAA).
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 Water

MRWA WSAA Water Code
 
300 Series - Appurtenances 12 May 2020 (3.04 MB)
400 Series - Steel Pipelines 01 Dec 2016 (226 KB)
500 Series - Water Metering 02 Feb 2018 (12.7 MB)
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MRWA Water Calculators
MRWA Water Calculators 07 Dec 2016 (384 KB)​
The MRWA Water Calculators provides assistance to the designer in working out a range of different forumulas referenced in the Water Code.

 Sewer

MRWA WSAA Sewer Code
 
100 Series Sewerage Standards 01 May 2017 (5.9 MB)
200 Series Sewerage Standards 03 Aug 2016 (7.3 MB)
300 Series Sewerage Standards 03 Aug 2016 (22.0 MB)
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ALDE 12d templates and map file sewerage package
The Association of Land Development Engineers (ALDE) have prepared a 12d package to provide support templates and map files for presentation of Sewer designs based on the MRWA Version 2.0 Edition sewer standards.
If you have any questions regarding the 12d package, please contact the ALDE contact at sah@ldeng.com.au or http://www.alde.com.au/index.php/contact
Please note that the MRWAs are not the authors of the 12d package and do not warrant the accuracy, adequacy or completeness of this information. We do not warrant that the 12d information is complete or up to date and use of this information is at your own risk. It is your responsibility to ensure that use of this information reflects the requirements set out in the Sewer Standards Design templates.

 Pressure Sewer

MRWA Pressure Sewer Supplement
 
This document contains all of the MRWA Pressure Sewer Supplement Standard Drawings in one PDF file, if you would like to access individual files please select from the list below.
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 TradeWaste

MRWA Trade Waste Standards