British Columbia · Home health · checked September 28, 2026

Well water testing in Nanaimo

Most of Nanaimo is on the City's water system, but the Regional District of Nanaimo's well-testing rebate is open to City of Nanaimo residents with a private domestic well. If yours is, here's how testing works in British Columbia.

Filling a water-sample bottle at a farmhouse kitchen tap with the aerator removed, snowy fields and a barn outside

Private wells in Nanaimo

Rare

Testing cost

Paid, private lab

Test for

Bacteria yearly or more

Extended panels

Nitrate, metals, more

How Nanaimo is built

Nanaimo's houses by when they were built Ten house shapes, one for each tenth of Nanaimo's 33,520 houses. Before 1961: 15%, 1961–1990: 40%, 1991–2000: 18%, 2001 or later: 28%. Older houses glow hotter.
  • Before 1961 15%
  • 1961–1990 40%
  • 1991–2000 18%
  • 2001 or later 28%
Each house stands for one in ten of Nanaimo's 33,520 houses (single-detached, semi-detached, row and duplex), drawn by when it was built. The glow shows the usual pattern: older houses tend to be leakier and less insulated. Snowfall scales with heating degree-days. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

Wells in Nanaimo

Most of Nanaimo is on the City's water system, but the Regional District of Nanaimo's well-testing rebate is open to City of Nanaimo residents with a private domestic well.

Local program: RDN Well Water Testing Rebate: 50% of a qualifying chemical + bacterial test, up to $350, once per well every five years; open for 2026 and available in the City of Nanaimo.

How testing works in British Columbia

There's no free provincial program: use a qualified lab (search the CALA directory), which supplies the bottles. HealthLinkBC recommends testing for bacteria at least once a year and for chemistry when the well is new and annually after that.

What to test for

  • Bacteria (total coliforms and E. coli): at least once a year, and after flooding, heavy rain or work on the well.
  • Nitrate, especially near farmland or septic systems.
  • Metals and naturally occurring contaminants such as arsenic, uranium or manganese when a well is new and every few years after, depending on local geology.

Our well water guide.

Communities served

Nearby communities without a page of their own: Powell River (about 80 km away). Nanaimo is the closest city we cover.

The organizations and professionals listed for Nanaimo may or may not travel to every community, so ask when you call.

Well water testing in Nanaimo: common questions

Is well water testing free in British Columbia?

There's no free provincial program: use a qualified lab (search the CALA directory), which supplies the bottles. HealthLinkBC recommends testing for bacteria at least once a year and for chemistry when the well is new and annually after that.

How often should I test my well?

For bacteria, at least once a year and after flooding, heavy rain or well work; many health units recommend more often. Test chemistry when the well is new and every few years after.

Are private wells common in Nanaimo?

Most of Nanaimo is on the City's water system, but the Regional District of Nanaimo's well-testing rebate is open to City of Nanaimo residents with a private domestic well.

Well water testing near Nanaimo

Ask about well water testing in Nanaimo

Tell us your postal code and what you’re dealing with. We’ll reply with the right kind of certified professional or lab for your area, and which programs apply.