Pricing variations

For some groups of customers, different charges or some discounts apply.

Annual price increases

Your water, wastewater and drainage charges will increase on average by 4.5% from 1 July 2016. These charges go towards delivering some major improvements to our infrastructure to ensure we’re best placed to face the challenge of growth and a drying climate, and that we continue to provide you with the best possible service.

Your bill is made up of 2 charges – a service charge and a water use charge. These charges contribute to the maintenance of pipes, treatment plants and help fund essential infrastructure.

Your water use charge reflects the amount of water you’ve used for a 2-month period. Water use is seasonal and can change depending on where you live in WA. So it’s important you keep track of how much water you’re using – the more you use, the more it costs.

Learn more about what your bill contributes to, and the journey water takes on its way into and out of your home:

Download the journey water takes to your tap

Read about the journey water takes to your tap

Use the Your bill and charges tool to find out billing information and charges for your area.

Vacant land

All properties with access to our water main or wastewater (sewer) main pay service charges – even if there is no connection. This contributes to the cost of providing and maintaining essential services.

Drainage charges may also apply for metro areas. 

If any water is used on your vacant land you will also be billed for this.

For vacant land, the water service charge is the same as for residential properties – $236.22 per year.

For vacant land these charges are based on the rateable value, or gross rental value (GRV), of the property. 

The sewerage tariff is 2.401 cents for each dollar of rateable value. The minimum sewerage charge for vacant land in the metro area is $286.67 and for country vacant land is $250.88.

The drainage tariff is 0.645 cents for each dollar of the rateable value. The minimum metropolitan drainage charge for vacant land in 2016–17 is $107.48. Drainage charges don't apply to regional customers.

Vacant lots created by subdivision

Vacant lots created by subdivision receive an exemption from service charges for up to 12 months from the approval date. The exemption ends when one of the following occurs:

  • the property is sold within the 12 month exemption period
  • a water or sewer connection is made to the property within the exemption period
  • the 12-month exemption period expires.

Multiple residences or strata titled served by one meter

The number of residences are taken into consideration when they share a water meter or account.

Sewerage and drainage charges are based on a property’s rateable value, or gross rental value (GRV). When we issue one account for a group of residences, the rateable value is multiplied by the number of residences. For example, for 10 residences: 

  • Sewerage – 3.960 cents applies to the first 10 x $21,100 = $211,000 of the rateable value.
    0.900 cents applies to each dollar thereafter.

    The minimum sewerage charge for 10 residences is 10 x $381.26 = $3,812.60 

  • Drainage – The minimum charge would be 10 x $107.48 = $1,074.80

The water service charge for strata titled units sharing a meter is $236.22.

If a number of residences are sharing a meter, the amount of water at each tier is multiplied by the number of residences. For example, for 10 residences 10 x 150 kilolitres (kL) = 1,500 kL is available at the first price tier. 

Caravan bays

Long-term residential and strata titled caravan parks are charged at different rates to other homes.

Water service charge

The annual water service charge is $166.02 per bay.

Sewerage service charge

The sewerage service charge is $292.77. Volume charges for sewerage also apply if you discharge more than 75 kilolitres (kL) of wastewater. The charge is $3.258 per kL discharged.

0–150 kL  $1.586 / kL 
Over 150 kL  $2.187 / kL 
 Steps  0–150kL  Over 150kL
 1 $1.586  $2.256
 2 $1.586
 $2.458
 3 $1.586
 $2.673
 4 $1.586
 $2.912
 5 $1.586
 $3.172
 6 $1.586
 $3.453
 7 $1.586
 $3.761
 8 $1.586
 $4.095
 9 $1.586
 $4.459
 10 $1.586
 $4.857
 11 $1.586
 $5.287
 12 $1.586
 $5.758
 13 $1.586
 $6.270
 14 $1.586
 $6.828
 15 $1.586
 $7.434

Discounts for Aboriginal communities

Residential land that is occupied as a communal property where several families live, and also manage the land, receive the following discounts:

Water service charges

The discount for the yearly water service charge is now capped at $108.86 (from 1 July 2016). The yearly charge (after discount) is $127.36.

Sewerage service charges

The yearly charge is $104.81 per fixture.

Metropolitan customers receive a 50% discount on the first 150 kilolitres (kL) of water used in the billing year (the billing year begins at your first meter read in July or August).

The tiered water use pricing structure is detailed here:

Water use  Price per kilolitre
0–150 kL  79.3 cents
151–500 kL  $2.114
Over 501 kL  $2.993

Customers in northern country towns receive a 50% discount on the first 600 kilolitres (kL) of water used in the billing year (the billing year begins at your first meter read in July or August).

What class is my town in?

Country north town classes

The tiered water use pricing structure is detailed here.

Usage per year

Class 1

Class 2

Class 3

Class 4

Class 5

First 350kL $0.606 $0.793 $0.793 $0.793 $0.793
Next 150 kL $0.806 $1.057 $1.057 $1.057 $1.057
Next 100 kL $0.853 $1.173 $1.563 $1.838 $2.162
Next 150 kL $1.706 $2.346 $3.126 $3.675 $4.324
Over 750 kL  $1.991 $2.993 $3.985 $5.512 $7.434

Customers in southern country towns receive a 50% discount on the first 400 kilolitres (kL) of water used in the billing year (the billing year begins at your first meter read in July or August).

What class is my town in?

Country south town classes

The tiered water use pricing structure is detailed here.

Usage per year

Class 1

Class 2

Class 3

Class 4

Class 5

First 150 kL $0.606 $0.793 $0.793 $0.793 $0.793
Next 150 kL $0.806 $1.057 $1.057 $1.057 $1.057
Next 100 kL $0.853 $1.173 $1.563 $1.838 $2.162
Next 150 kL $1.706 $2.346 $3.126 $3.675 $4.324
Over 550 kL  $1.991 $2.993 $3.985 $5.512 $7.434

Pricing in the South West

There are 3 main water service utilities in the South West region. Visit the relevant website for current pricing structures:

Water use charge variations for Denham customers

We operate a saline water service and a desalinated water service in Denham. Saline water is for outdoor use only.

Denham customers receive 2 separate bills – a desalinated water use bill and a saline bill. The saline bill is a combined water use and service charge bill. These bills are issued every 2 months.  

Saline water use is charged at the normal country water use rate. 

View charges for Denham here

Each residence is allowed a quota of 18 kilolitres (kL) for each 2 month billing period. Water used within this quota is charged at a set rate and then increases if more than the quota is used.

Two-monthly consumption Price per kilolitre
Up to 18 kL 65.6 cents
Next 3 kL (18–21kL) $4.821
Over quota (21+kL) $15.022

Quotas are based on 4 people residing in a household. To increase your quota, please contact us on 13 13 85.

Brighton estate third pipe charge

For the water supply scheme that supplies Brighton Estate in Butler, we operate a 'third pipe' which supplies non-potable water for use outside the home. 

If this service is available at your property you are charged a fixed fee.

  • For lots less than 400m2 the charge is $79.69 
  • For lots greater than or equal to 400m2 the charge is $159.38. 

These charges are spread across your bills every 2 months, combined with your water use and other service charges.