Water Accounting System (iWAS)

Water Accounting System (iWAS)

The Water Accounting System is at the centre of all WaterNSW operations. Meter readings are entered along with all customer water orders into the WaterNSW Water Accounting System (iWAS) to help determine the daily release of water from dams and storages for all customers downstream.

Login to iWAS Register for iWAS

iWAS is available to all registered WaterNSW regulated river, unregulated river and groundwater customers. It allows you to:

  • Enter and amend water orders
  • Place bulk water orders
  • Place meter readings
  • Edit your account details
  • Download water account statements
  • View announcements
  • View and download the allocation assignment register
  • Create a master account allowing customers to link other customers to their iWAS account
  • 24 hour access, seven days a week

How to register online?

  1. Go to the registration page on our website
  2. Enter your customer number which can be found on your water account statement
  3. Enter the activation code (account number on your invoice)
  4. Enter the temporary password IWAS00 (zero/zero)
  5. Read and tick the terms and conditions box
  6. Register

How to login?

  1. Go to the login page
  2. Enter customer number
  3. Enter registration password
  4. Log in

You must  enter the password used for registration and then create a new password. Your password must contain at least six (6) characters and include numerals and letters for enhanced security.

Need help?

Tuesday 18 December
1,592,901 ML
2,581,850 ML
27,605 ML
3,944 ML
15,634 ML
Tuesday 18 December