'Perpetual slide' under study

The District of Summerland is studying what’s been dubbed “the perpetual slide,” an area near the south end of the community that's been continually on the move for a century.

The area south of Canyon View Road has been puzzling municipal officials and scientists for years, with a Master of Science student from UBC completing a thesis report on the issue back in 1977, according to a report going before council next week.

A consultant's report in 2015 recognized the perpetual slide as a risk to infrastructure and at least one home, but the data fell short because the study did not actively probe the area.

In January, the district drilled four boreholes at varying depths in an effort to periodically measure subsurface movement and groundwater elevations.

Readings in February and March found no movement, so its been recommended the municipality monitor the boreholes quarterly until movement is found on Paradise Road or Canyon View Road.

The district has spent a little over $80,000 of the investigation’s $100,000 budget so far, and is planning on carrying over the remainder to 2019 to complete quarterly data readings starting in February 2019 and finalize a report.

Additional topographical surveys and modelling will also take place on the slide in 2019.

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