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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 what your household's water efficiency target should be.
How do I set my target?
- Get your latest bill. Check the months your usage charges are for and your average daily usage for this bill.
- 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.
- Choose the row that shows how many people were in your home most of the time.
- Find your property size.
- 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 |
Small property |
Medium property |
Large property |
|---|---|---|---|
1 person |
193 L/day |
195 L/day |
211 L/day |
2 people |
341 L/day |
350 L/day |
371 L/day |
3 people |
447 L/day |
462 L/day |
484 L/day |
4 people |
512 L/day |
532 L/day |
556 L/day |
5 people |
537 L/day |
560 L/day |
581 L/day |
November to January daily target
People |
Small property |
Medium property |
Large property |
|---|---|---|---|
1 person |
198 L/day |
203 L/day |
216 L/day |
2 people |
352 L/day |
364 L/day |
382 L/day |
3 people |
460 L/day |
480 L/day |
499 L/day |
4 people |
528 L/day |
554 L/day |
572 L/day |
5 people |
553 L/day |
582 L/day |
598 L/day |
February to April daily target
People |
Small property |
Medium property |
Large property |
|---|---|---|---|
1 person |
202 L/day |
203 L/day |
218 L/day |
2 people |
357 L/day |
365 L/day |
385 L/day |
3 people |
467 L/day |
481 L/day |
502 L/day |
4 people |
536 L/day |
555 L/day |
576 L/day |
5 people |
562 L/day |
584 L/day |
603 L/day |
May to July daily target
People |
Small property |
Medium property |
Large property |
|---|---|---|---|
1 person |
185 L/day |
190 L/day |
202 L/day |
2 people |
328 L/day |
342 L/day |
358 L/day |
3 people |
429 L/day |
451 L/day |
467 L/day |
4 people |
493 L/day |
519 L/day |
535 L/day |
5 people |
516 L/day |
546 L/day |
560 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? (175 KB) to learn about the typical things that use water in a home.
