Find the standards, guidelines and servicing plans you will need to follow when developing land in the Greater Western Water region.
The information on this page applies for properties in the area previously serviced by Western Water.
Products and materials used shall be in accordance with Greater Western Water approved products and materials specified on the MRWA portal unless otherwise amended.
See our Development Servicing Plans Policy.
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Warning: This file is larger than 50MB and may take some time to download.
The design of sewer mains must be in accordance with:
- WSA 02-2014-3.1 Sewerage Code of Australia Melbourne Retail Water Agencies Edition Version 2, and:
- WESTERN WATER'S SUPPLEMENTARY SEWERAGE DESIGN STANDARD, JULY 2020(159KB)
The design of water and recycled water mains must be in accordance with:
- WSA 03-2011-3.1 Water Supply Code of Australia Melbourne Retail Water Agencies Edition Version 2, and:
- WESTERN WATER'S SUPPLEMENTARY WATER DESIGN STANDARD, JANUARY 2018(443KB)
The design of sewer pumping stations must be in accordance with:
- WSA 04-2005.2.1 Sewerage Pumping Station Code of Australia, and:
- WESTERN WATER'S SUPPLEMENTARY SEWAGE PUMP STATION DESIGN STANDARD, JANUARY 2018(981KB)