Review of Sewerage Tariff and Liquid Trade Waste Charging

• Issues Paper

  6 November 2025

• Submissions to the Issues Paper

  10 February 2026

• Draft Report

• Submissions to the Draft Report

• Final Report

The commission is conducting a review of Icon Water’s sewerage tariff structure and the potential introduction of a liquid trade waste tariff in the ACT.

The current charging framework has remained largely unchanged for more than two decades. This review aims to ensure the charging framework strikes a balance between economic efficiency, environmental sustainability, and social equity and provides clear incentives for efficient water use and wastewater management.

The review is expected to be revenue neutral, with Icon Water’s total revenue remaining broadly unchanged and any changes affecting only how charges are distributed among customers.

The emphasis of the review is on sewerage and trade waste tariffs for non-residential customers, but the commission is interested in views on sewerage tariffs for residential customers.

Any changes resulting from this review are expected to inform the next price investigation and be implemented in the 2028 regulatory period.

Submissions to the Issues Paper

We invited stakeholders to make written submissions in response to the Issues Paper. Submissions closed on 10 February 2026.

We received 9 submissions, with 2 requesting to remain confidential.

Release of Issues Paper: Review of sewerage tariff and liquid trade waste charging

On Thursday 6 November 2025, we released an issues paper as the first step in our review process.

A copy of the issues paper and media release is available below.

Stakeholder submissions on the issues paper closed on Tuesday 10 February 2026.