281 Water Supply, Sewerage and Drainage Services
Group-level ANZSIC page with direct links to every class nested under this grouping.
Browse the final layer
Classes in Water Supply, Sewerage and Drainage Services
This is the point where ANZSIC becomes precise enough for practical work. Open the class pages below and confirm the definition, primary activities and exclusions before you settle on a code.
Water Supply
This class consists of units mainly engaged in the bulk storage or distribution of water.
- Dam operation (water supply)
- Desalination plant operation
- Mineral water supply from the ground
Sewerage and Drainage Services
This class consists of units mainly engaged in operating sewerage or drainage systems or sewage treatment plants.
- Sewage pumping station operation
- Sewage treatment plant operation
- Sewerage system operation
What this group covers
ANZSIC group 281 is the last broad layer before the class code. It is where the classification becomes detailed enough to compare closely related business types without losing the surrounding context.
If two businesses look similar, the group page helps you see whether they belong in the same industrial family before you confirm the final class.
Group facts
- Subdivision
- 28 Water Supply, Sewerage and Drainage Services
- Classes
- 2
Frequently asked questions
What does ANZSIC group 281 contain?
Water Supply, Sewerage and Drainage Services is the tight grouping just above class level. It is where the hierarchy starts to become specific enough for practical classification work.
Why use the group page instead of jumping straight to a class?
The group page helps you compare nearby class options and understand the boundary of the industry family before picking the exact code.
What is the difference between group and class?
The group is a middle layer. The class is the final four-digit code and the level usually used in reporting, registration and reference work.
How to use this page
This is the easiest level to scan when you want to understand the immediate neighbourhood of a class code. It keeps the page readable while still showing enough detail to avoid misclassification.
For final code selection, open the class page from here and confirm the description, primary activities and exclusions before you use the code elsewhere.
Source and trust
- Official source
- ABS ANZSIC 2006 release
- Last reviewed
- 2026-04-17
This site is an independent reference resource. It is not affiliated with, endorsed by, or connected to the ABS, ATO or any Australian Government agency.
Please verify critical classification decisions with the official authority before using them for tax, payroll, licensing, immigration or compliance work.