Navigating Victoria’s Safe Drinking Water Regulations 2025: Insights for Water Managers

Staying on top of Victoria’s Safe Drinking Water Regulations (SDWR) 2025 is crucial for water agencies. The new SDWR align Victoria’s regulations more closely with the recommendations under the Australian Drinking Water Guidelines (ADWG) and improve on issues raised in the SDWR 2015.

To stay ahead, it’s important to understand what’s changing and why. The new regulations are designed to ensure every drop from the tap is safe and reliable, encouraging facilities to embrace more reliable water monitoring systems.

New rules bring new responsibilities, and being ready can prevent major hiccups. Here’s what’s changing and how you can stay compliant moving forward.

 

Key Changes in SDWR 2025 That Water Managers Should Know

The SDWR comes with significant updates, especially in risk management plans (RMPs), water quality standards, sampling protocols, and reporting duties. The Department of Health (DOH) has published a fact sheet for water agencies to help navigate the new changes.

Below we’ll highlight the key changes in the newly enacted SDWR.

1. Drinking Water Quality Standards

Health-based standards in the latest legislation now formally include all characteristics listed in the ADWG with a health-based guideline value. A significant regulatory change is the removal of the “false positive” exception for E. coli. Any detection is now classified as a breach.

The SDWR also introduces aesthetic-based drinking water standards, which will take effect from 6 January 2027. These standards cover characteristics such as taste, colour, and odour (excluding chlorine) and require that the annual average for each sampling area meets the relevant guideline values.

2. Risk Management Plans (RMPs)

The SDWR 2025 maintains most of the existing RMP requirements in SDWR 2015 but introduces several key updates. Water agencies now need to document critical control points (CCPs) across the entire water supply system, not just treatment processes. 

Additionally, from 6 October 2025, RMPs must include details on:

• Policies for managing drinking water quality
• Processes for inspecting and maintaining water assets
• Processes for identifying emerging water quality risks
• Processes for the short-term and long-term data review to monitor water quality risks
• An improvement plan that specifies how the organisation proposes to improve its water quality management
• Water quality risks on aesthetic qualities (taking effect 6 January 2027)

3. Health-Based Targets (HBTs)

From 6 July 2026, RMPs must comply with new requirements on quantifying microbial health-based targets (HBTs) that are closely aligned with HBTs recommended by the ADWG. 

For water agencies treating untreated water for drinking purposes, they should assess treatment adequacy based on the source water category, design and monitor treatment systems to achieve microbial HBTs, verify the system’s effectiveness, and implement improvements if the drinking water fails to meet the required HBTs.

Crucially, if a water agency identifies a shortfall in the required log reduction value (LRV), which is defined as being at least one log below the target, it must notify the Secretary of the DOH within ten days of becoming aware of the issue.

4. Water Sampling Areas

The SDWR 2025 streamline the process for determining the boundaries of water sampling areas. Unlike the 2015 regulations, water agencies are no longer required to seek the Secretary’s approval or publish the changes in the Government Gazette. However, organisations must still notify the DOH’s Secretary in writing within ten days of specifying or altering a sampling area and update their RMPs accordingly.

5. Sampling Programs

Changes to sampling program requirements have been made to improve clarity and reduce overly prescriptive rules. As in the 2015 regulations, the SDWR retains the requirement for water suppliers to test for E. coli, total trihalomethanes (TTHMs), pH, and turbidity.

A notable change is that water agencies are no longer prohibited from sampling the same location consecutively, provided the sample remains representative of the water supply.

6. Sampling Frequency and Analysis

While the requirements on sampling frequencies remain unchanged, the DOH’s Secretary now has more flexibility to determine sampling frequencies for any parameter, based on risk or other relevant factors.

The SDWR also updates the definition of an “accredited testing organisation” to reflect the National Association of Testing Authorities (NATA) framework. This change allows field-based testing, provided the testing organisation is NATA-accredited for the specific methods being used. 

7. Reporting Results of Sample Analysis

Starting 6 January 2027, water agencies will be required to submit quarterly summary reports on any exceedances of aesthetic-based standards to the Secretary. 

Regulation 20 (formerly Regulation 15 in SDWR 2015) requires that agencies include details of actions taken or proposed in response to breaches of standards, or any other reportable risks to public health or water aesthetics.

Additionally, a new requirement mandates water agencies to report sample results that could trigger widespread public complaints. This provision supports section 22 of the Safe Drinking Water Act by ensuring there’s sufficient evidence to back up health-related notifications.

8. Audits

There are no changes to the documents required for RMP audits or the qualifications for RMP auditors. However, the audit certificate now includes a new field to record the date the audit was completed.

To support compliance with the updated RMP obligations, the DOH plans to release additional guidance for water agencies and auditors to clarify expectations and ensure that audits are consistent and comprehensive.

 

What’s Next? Adopting Automated Online Monitoring and Reporting Systems

New regulations mean water agencies must shift from traditional approaches to a more transparent and risk-based approach. The SDWR emphasise a more proactive monitoring system, stricter drinking water standards, clearer documentation, increased accountability, and enhanced reporting.

Organisations have to assess not only their RMPs, but also their current systems to see whether they are equipped to comply with these new obligations. One solution is to implement advanced water quality management software to streamline compliance and improve operational oversight.

One of the key changes is the need to document CCPs across the entire water supply system. An automated online solution can support this by providing a centralised platform to record, update, and track CCPs and related controls. This makes it easier for water managers and compliance officers to maintain accurate and up-to-date RMPs and demonstrate compliance during audits.

The latest regulations also place greater emphasis on robust water quality data assessment and proactive water risk identification. Automated software platforms that integrate with sensors and SCADA systems allow organisations to comprehensively monitor key water quality parameters, such as microbial indicators, pH, turbidity, and aesthetic characteristics.

Smart alerts can rapidly highlight shifts in water quality, so managers can stay ahead of any changes without having to sift through logs and tables manually. Automated online water quality monitoring helps organisations to shift from reactive to preventative measures, leading to improved risk management. It also enables faster decisions, better control, and a much stronger ability to prove compliance during audits.

When paired with predictive analytics, automated online systems can help identify trends or potential issues before they lead to breaches, supporting both short-term response and long-term planning in RMPs.

Another major shift is the introduction of aesthetic-based standards and quarterly reporting requirements from January 2027. Advanced water quality management software automates the collection and analysis of sample data, flag exceedances, and generate reports that align precisely with regulatory formats.Reporting then requires less manual work, and records are readily available for follow-up action.

Overall, automated online water management systems can help water agencies better manage complexity, ensure data accuracy, and maintain consistent reporting practices in line with the 2025 regulatory changes. Advanced water quality software therefore serves as a valuable support system for skilled operators in delivering safe drinking water and maintaining compliance.

 

Stay Compliant with SDWR with Proactive Water Management

To comply with the SDWR 2025, water agencies should look into automated online water monitoring systems to shift from reactive maintenance to preventative action. By proactively managing water quality, organisations can easily reduce human error, save time, and safeguard against breaches, putting control back into their hands.

At D2K Information, we view this shift as more than compliance. It gives water agencies a chance to run smarter, safer, and more sustainable water programs. To ensure your organisation stays ahead with the new legislation, we can offer you an automated online water quality monitoring system that transforms how compliance and safety are managed.

With D2K Information’s expertise, you’ll harness the most advanced monitoring solutions to maintain public safety as your number one priority. Learn how our services can support your transition and help your facility achieve seamless compliance.