Data sources and limitations

Understand data coverage, currency, map limits and why Enviro-D outputs need human review.

Enviro-D depends on available data. Some data is national, some is state-based, some is local, and some is only available for particular themes or regions.

Why coverage can vary

Coverage can vary because:

different jurisdictions publish different datasets;
dataset names and definitions are not always consistent;
some datasets are updated more often than others;
some risks are not mapped publicly;
a site boundary may not match the real-world area being assessed;
data can be incomplete, delayed, withdrawn or corrected by the source agency.

What Enviro-D records

Enviro-D is designed to help record the site, map context, sections checked and report output. This can support a due-diligence file note or evidence pack.

It does not guarantee that every relevant risk has been captured.

How to use limitations well

When a matter is important, record:

the site boundary used;
the date the screen was run;
the sections checked;
any visible map prompts;
any missing or uncertain data;
the follow-up action or reviewer.

When to seek advice

Seek specialist advice when a mapped issue could affect contract terms, design, approval, works, finance, insurance, valuation, disclosure, safety or statutory obligations.