This charge covers the cost of maintaining the public wastewater network. It applies regardless of whether your property is occupied. We spread the charge across the year. You can see the number of days for the billing period on your bill.

If you do not have a water meter and receive wastewater services only, you will pay a notional fixed charge.

This charge covers the cost of collecting and treating your wastewater. It is based on the volume of wastewater discharged, as determined by your industry type.

For example, if you have a standard commercial premise – such as an office – we will apply wastewater charges based on 95% of the volume of water supplied. This assumes 5% does not go down the drain (may be used for drinking or light irrigation).

Here is a list of our industry types and the applied wastewater percentages for each:

These industry types have a wastewater percentage of 95 per cent:

• General commercial (standard commercial premises, e.g. office)
• Community facility/church
• Abattoir
• Retail shop/cafe/restaurant
• Warehouse/postal/transport
• Sports/recreation facility
• Education and training facility (no irrigated grass fields)

These industry types have a wastewater percentage of 90 per cent:

• Industrial/general manufacturing
• Hospital or medical clinic

These industry types have a wastewater percentage of 85 per cent:

• Pool
• Laundry
• Food manufacturing

These industry types have a wastewater percentage of 80 per cent:

• School (with irrigated grass fields)
• Beverage manufacturing
• Metal, glass or construction material manufacturing

These industry types have a wastewater percentage of 15 per cent:

• Agriculture
• Concrete manufacturers have a wastewater percentage of 5 per cent.

Note: We reserve the right to review a meter’s industry type and, if it has been misrepresented, assign the correct industry type and backdate any difference in charges.

If you have any questions, call us on (09) 442 2222 and press 2.

You can find your industry type on your bill, under ‘Summary’.

Head to How to read my commercial bill for more information.

Your water bill shows your account number and the pricing plan you’re on.

If you have an existing site, or have recently purchased an existing business, the plan would have been set up when the business was first established.

If you have a new site, we set up a plan based on the information you gave us when you applied for a water meter.

If you believe the classification for your water meter is incorrect, you can apply to change it using our form:

Meter reclassification

New customers

You can change your plan within 15 days of receiving your first water bill or contact us to discuss your account.

Existing customers

If you believe there are special circumstances that warrant a change to your plan, you can switch any time:

In May or June, call us on (09) 442 2222, press 2.

At any other time of the year, please complete our online form.

Request form

• 1 July 2023 to 30 June 2024: Commercial water, wastewater and other charges
• 1 July 2022 to 30 June 2023: Commercial water, wastewater and other charges

• 1 July 2021 to 30 June 2022: Commercial water, wastewater and other charges

• 1 July 2020 to 30 June 2021: Commercial water, wastewater and other charges

• 1 July 2019 to 30 June 2020: Commercial water, wastewater and other charges

• 1 July 2018 to 30 June 2019: Commercial water, wastewater and other charges

• 1 July 2017 to 30 June 2018: Commercial water, wastewater and other charges