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Repairs to Chapman Creek water mains completed

Sunshine Coast’s primary water supply has been stabilized after 2020 landslide
N.Landslide Update
Work to repair impact to the Chapman Creek Water Treatment Plant’s dual supply mains after a 2020 landslide was completed in February.

Work to repair the damage caused by a landslide in December 2020 has now concluded, and come in under budget.

On Dec. 19, a landslide next to the Chapman Creek Water Treatment Plant’s dual supply mains destabilized the infrastructure, and risked the Sunshine Coast’s primary water supply. By Feb. 12, the project to stabilize the water mains was completed without interruption to the water supply.

At the April 8 meeting of the Sunshine Coast Regional District (SCRD)’s infrastructure services committee, directors called the fix “good news” and asked about the long-term nature of the repair as well as future monitoring.

Manager of capital projects, Stephen Misiurak, told the board that the construction anchored the infrastructure directly into bedrock, not just soil, to ensure its longevity. He said the unit would remain standing, even in the event of a “catastrophic” landslide in the area.

The SCRD board held an emergency meeting on the last day of 2020, but did not include formally awarding the construction project to the chosen company. So on April 8, after the project’s completion, the directors voted to award the construction contract for stabilizing the water supply mains to Arya Engineering Inc. The contract dictates the amount will not exceed $173,564, not including taxes. In December, the board authorized staff to spend up to $200,000 to stabilize the mains.

The total amount for construction expenses, including inspection and monitoring, came to $166,448. Staff time is estimated at $20,000.

Emergency Management BC will reimburse the SCRD for up to $147,000, and the staff time may be partially recoverable. With the contribution from the provincial government, the operating reserves for the regional water service will cover the remaining of up to $40,000.