Water Sampling Results

Water Sampling Results

All water suppliers in British Colombia are required to monitor water that reaches consumers for total coliform bacteria and Escherichia coli (E.coli) regularly. The monitoring is one part of a comprehensive approach to safe drinking water.

  • The presence of E. coli in a water sample indicates that bacteria capable of causing illness may be present in the water system. 
  • The presence of total coliform bacteria may indicate a breakdown in the treatment process, or growth in the distribution system. 

Water Sample Results

Capital Regional District (CRD) owned and operated water supply systems sample results can be found here.  

Sample results are available online at this link. Data starts from January 2009 onward, so some locations will not list results right away.

For more information or to access sample results prior to January 2009, please call your local Environmental Health Office.


Acceptable Sample Results

The following results are considered acceptable for drinking water:

E. Coli

  • No E. Coli detectable per 100 ml of each water sample.

Coliform

  • If only one sample is taken in a 30-day period:
      • No detectable Coliform per 100 ml of water
  • If more than one sample is taken in a 30-day period:
      • At least 90% of samples will have no detectable Coliform per 100 ml of water, and 
      • No sample has more than 10 total Coliform per 100ml of water

Interpreting Sample Reports

Results of  drinking water sampling are reported using the following coding system:

  • L1    Less than 1 (no detectable bacteria) – Meaning: No bacteria present
  • OG   Overgrown – Meaning: Too many background bacteria to give an accurate count
  • EST  Estimated Count 
    and
  • A      Sample not tested; Too long in transit
  • C      Sample leaked/broken in transit
  • D      Sample not tested; No collection date given
  • T      Sample submitted unsatisfactory. Exceeded   30  hours holding time, please resample.
  • NS   No sample received with requisition 

If you have questions or want more information regarding your water system, call your local Environmental Health Office.


Governance

In BC, drinking water systems are governed under the Drinking Water Protection Act (the Act) and Drinking Water Protection Regulation (the Regulation).

News & Events

Large red letters that spell "Emergency" in front of an emergency department

Island Health asks for public’s assistance in appropriate emergency department use

Island Health is asking people to do their part to ensure our hospital emergency departments can continue to meet the care needs of patients experiencing medical emergencies.

Read more

an overhead watershed picture of comox

Island Health reschedules some immunization appointments due to extreme heat

Due to the extreme heat wave that is currently affecting British Columbia, Island Health is rebooking some COVID-19 immunization appointments in Langford and Comox.

Read more

Picture of Ocean at Comox Valley

Island Health rebooking all June 29 COVID-19 immunization appointments at Glacier Gardens in Comox

Due to the extreme heat wave that is currently affecting British Columbia, Island Health is rebooking all COVID-19 immunization appointments that were scheduled on Tuesday, June 29 at Glacier Gardens in Comox. 

Read more