Wollongong's Duplicate Image Problem: The Key Decisions That Will Define What Comes Next

Wollongong City Council's digital records team has confirmed it is working through a structured review of duplicated image assets held across its internal content management systems, a process that raises immediate questions about storage costs, public transparency obligations, and which files — some linked to development applications along Crown Street and the Keira Street civic precinct — ultimately survive the cull.

The timing matters. Across the Illawarra Shoalhaven region, public agencies are under mounting pressure to demonstrate they are managing digital infrastructure responsibly as state government funding decisions — including rounds tied to the Illawarra Shoalhaven Regional Development Fund — increasingly factor in governance quality. Letting duplicate records accumulate unchecked is no longer treated as a neutral administrative failure; auditors now flag it as a risk indicator.

The University of Wollongong's library and research data services division, based on the Northfields Avenue campus, has been grappling with a version of the same problem since at least 2024, when a federated storage audit identified significant overlap in digitised image collections held across three separate departmental repositories. The Illawarra Health and Medical Research Institute, located within the Innovation Campus on Squires Way, faces analogous challenges in managing imaging datasets generated by clinical research programs. Neither institution has publicly outlined a resolution timeline.

What the Review Process Actually Involves

Duplicate image replacement is rarely a single decision. It typically unfolds in three stages: identification, where automated tools flag files sharing identical or near-identical checksums; triage, where human reviewers determine which version holds the highest archival or evidentiary value; and replacement, where lower-priority copies are either deleted or demoted to cold storage. For councils and universities operating under the New South Wales State Records Act 1998, deletion carries its own legal obligations — records with ongoing administrative, legal or historical value cannot simply be discarded, even when duplicated.

Wollongong City Council's geographic information systems data — including aerial imagery of the Port Kembla industrial precinct taken during BlueScope Steel's ongoing transition planning — sits in a category where version control failures are particularly costly. Multiple departments may hold working copies of the same aerial surveys, each version potentially annotated or cropped differently, making automated deduplication unreliable without manual oversight.

The practical cost of inaction is real. Commercial cloud storage pricing for large unstructured datasets — the kind that image libraries generate — has held around AUD $0.02 to $0.03 per gigabyte per month for standard-tier access, with retrieval costs on top. An institution holding several hundred terabytes of redundant image data can accumulate tens of thousands of dollars in unnecessary annual expenditure before a review is even commissioned.

The Decisions That Cannot Wait

Three choices are now in front of Wollongong's public sector institutions, and the window for making them cheaply is narrowing. First, whether to invest in automated deduplication tooling — which requires upfront licensing and integration costs but reduces ongoing labour — or to run purely manual triage, which is slower but allows contextual judgment on ambiguous files. Second, which governance body signs off on permanent deletion: legal, IT, or the records management function. Third, whether institutions coordinate across the region — a shared framework between Council, UOW and IHMRI could reduce duplication of the review effort itself, not just the images.

The NSW Government's Digital Restart Fund has previously supported exactly this kind of infrastructure rationalisation work, and several Illawarra organisations have drawn on it for prior technology projects. Whether a joint application covering Wollongong's major civic and research institutions is feasible before the next funding round closes is a question that records managers across Northfields Avenue and Burelli Street are likely already asking each other.

The review at Council is expected to produce an internal report by the September 2026 ordinary council meeting. What that report recommends — and whether councillors treat it as a low-priority housekeeping item or a signal to invest properly in digital governance — will set the tone for how the wider region handles a problem that is quietly getting more expensive with every month it goes unresolved.