The quality of drinking water provided to customers in the Wilderness Mountain Water System is overseen by the CRD Water Quality Division and the data is stored in the Water Quality Division database.

Water Quality Division staff prepare a number of water quality reports and summaries for the Wilderness Mountain Water System. These reports track drinking water quality against the limits listed in the BC Drinking Water Protection Regulation and the Canadian Drinking Water Quality Guidelines. All reports are posted in Adobe Acrobat PDF format. (PDF)

Monthly Water Quality Reports

Wilderness Mountain Water System
Monthly Reports *
(covers the most recent 4 week period)
Year-To-Date (YTD) Reports **
(covers the most recent 12 month period)
Bacteriological Report Monthly Bacteriological Report YTD Bacteriological Report
Physical-Chemical Report YTD Physical - Chemical Report

* Monthly Bacteriological Reports are updated weekly and provide test results for the previous 4 weeks.

** Year-To-Date (YTD) Reports are updated shortly after the end of each month and provide a summary of the previous 12 months of data along with summary statistics for each sampling location.

Note 1. Bacteriological samples may not be collected each week from each location (in accordance with the sampling program). This means that some weeks may not have test results for a given parameter.

Note 2 .Explanation of Table Headings for Water Quality Reports.

Periodic Water Quality Reports

Periodic Water Quality Reports provide water quality data for parameters that are tested periodically (i.e., quarterly, semi-annually, annually or on an 'As Required' basis). However, depending upon water system configuration, not all parameters are tested each year. If the report contains no data, it means the parameters were not tested during the reporting period shown near the top of the report.

Wilderness Mountain Water System Year-To-Date (YTD) Reports for Periodically Tested Parameters * (covers the most recent 12 month period)
Disinfection By-Products (THMs and HAAs) YTD DBP Report
Metals 1 (Aluminum to Copper) YTD Metals 1 Report **
Metals 2 (Iron to Zinc) YTD Metals 2 Report
Parasites (Giardia and Cryptosporidium) YTD Parasites Report
Algal Toxins YTD Algal Toxins Report ***

* YTD Reports for Periodically Tested Parameters are updated shortly after the end of each month and provide a summary of test results for the most recent 12 month period.

** The metals were divided alphabetically into 2 groups to make the reports easier to read.

*** Typically, algal toxins are only tested in water systems supplied from a surface water body containing high levels of blue-green algae.

Total Microcystin: Present/Absent
The total microcystin data provided above is limited to water samples collected at the Wilderness Mountain water treatment plant and does not necessarily reflect water quality conditions in other areas of Wilfred Reservoir. Raw water quality conditions can vary in different areas and at different depths of the lake. Therefore it should not be assumed that an "Absent" result above indicates that Wilfred Reservoir is entirely free of microcystins. The CRD does not assume any liability to or on behalf of those who use this data, and does not make any representations or warranties on the accuracy or completeness of the data provided.