In 2025, Taumata Arowai released the draft National Wastewater Standards for consultation, which closed on the 24th of April 2025. With the proposed standards indicated to coming into effect from August 2025, we thought it would be worthwhile having a look at the standards to understand what the reporting requirements may look like going forward.
Proposed Limits based on draft standards

Figure 1 – Proposed discharge limits based on the relevant receiving environment. See the proposals on a page here.