Water efficiency targets

Setting a target for your household

Generally, homes roughly the same size and with the same number of people living in them use about the same amount of water if they use water efficiently. How's your home doing? Find out now what your household's water efficiency target should be.


How do I set my target?

  1. Get your latest bill. Check the months your usage charges are for and your average daily usage for this bill
  2. Then, from the 4 tables below, choose the one closest to the months covered by your usage charges. They don't have to match exactly.
  3. Choose the row that shows how many people were in your home most of the time.
  4. Find your property size.
  5. See how many litres per day (L/day) an efficient home should be using and compare your readings. 

This is where you'll find the information on your bill.


What are the targets?

August to October daily target

People
in the home 

Small property 
Less than 500 m2

Medium property
501 m2 to 700 m2

Large property
701 m2 to 900 m2

1 person

189 L/day

191 L/day

206 L/day

2 people

340 L/day

349 L/day

370 L/day

3 people

436 L/day

451 L/day

473 L/day

4 people

501 L/day

520 L/day

543 L/day

5 people

527 L/day

549 L/day

569 L/day

November to January daily target

People
in the home

Small property 
Less than 500 m2

Medium property
501 m2 to 700 m2

Large property
701 m2 to 900 m2

1 person

194 L/day

199 L/day

212  L/day

2 people

351 L/day

363 L/day

381 L/day

3 people

449 L/day

469 L/day

487 L/day

4 people

516 L/day

541 L/day

559 L/day

5 people

542 L/day

570 L/day

586 L/day

February to April daily target

People
in the home 

Small property 
Less than 500 m2

Medium property
501 m2 to 700 m2

Large property
701 mto 900 m2

1 person

197 L/day

199 L/day

213 L/day

2 people

356 L/day

364 L/day

384 L/day

3 people

456 L/day

470 L/day

490 L/day

4 people

524 L/day

542 L/day

563 L/day

5 people

551 L/day

572 L/day

591 L/day

May to July daily target

People
in the home 

Small property 
Less than 500 m2

Medium property
501 m2 to 700 m2

Large property
701 m2 to 900 m2  

1 person

181 L/day

186 L/day

198 L/day

2 people

327 L/day

341 L/day

357 L/day

3 people

419 L/day

440 L/day

456 L/day

4 people

482 L/day

508 L/day

523 L/day

5 people

506 L/day

536 L/day

549 L/day


What are the targets based on?

We use water in lots of different ways around the home, so there are many factors that determine how much water you use. These figures show litres per household per day. They're based on members of the household:

  • using water outdoors 2–3 times a week on average to maintain lawns and garden, top up the pool, wash the car, etc.
  • having a 4.5-minute shower each day using a water-efficient showerhead (no more than 9 litres per minute)
  • using a dual-flush toilet
  • using a front-loading washing machine and no more than 2 loads per person per week
  • using water-efficient taps fitted with aerators
  • using the dishwasher no more than once a day
  • having a bath only occasionally
  • fixing any obvious leaks around the home.

How do I compare?

If you used the same or less than the targets, your household has good water use practices. Thank you for using water wisely.

Read What uses water in your home? (175KB) to learn about the typical things that use water in a home.


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