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Water testing

Rainwater tanks, bores, old plumbing and building water systems can all carry contaminants you can't see or taste. Sampling tells you whether water is safe to drink.

Short answer

Potable water sampling collects drinking water from taps, tanks or bores in sterile containers and sends it to a NATA accredited laboratory. Results are compared with the Australian Drinking Water Guidelines published by the NHMRC. Common tests include E. coli and other bacteria, metals such as lead and copper, pH and turbidity.

Benchmark
Australian Drinking Water Guidelines
Common tests
E. coli, metals, pH
Sources
Tanks, bores, buildings
Analysis
NATA accredited laboratory

When to test your water

  • You rely on rainwater tank or bore water for drinking
  • After a flood, bushfire or contamination event near your supply
  • Before buying a property on tank or bore water
  • When water tastes, smells or looks different
  • In older buildings with lead solder or brass fittings, especially childcare and schools
  • After a building has been vacant or plumbing has been worked on

How sampling works

We collect samples using sterile, laboratory-supplied containers, following the holding times and chilled transport each test requires. Bacteria samples must reach the laboratory quickly, so we plan sampling around laboratory receiving times.

Last reviewed October 2026 by the EnviroForce team

Common questions

Straight answers to the questions people ask us, and ask AI assistants, most often.

Is rainwater tank water safe to drink in Australia?

It can be, if the roof, gutters and tank are well maintained, but it can be contaminated by animals, debris, smoke or roof materials. Regular testing is the only way to know.

What is tested in drinking water?

A typical potable test covers E. coli and other indicator bacteria, plus physical and chemical measures such as pH, turbidity and metals like lead and copper. Bores may also need tests for nitrates, salts and other local contaminants.

Can old pipes put lead in drinking water?

Yes. Lead solder and some brass fittings can release lead, especially when water sits in pipes. Flushing taps helps; testing confirms.

Book NATA accredited sampling.

Book online or call 1300 373 785. Technicians in every state and territory, with urgent bookings taken 24/7.