Industry sources said unidentified landfills represent dangers to construction crews, exposing them to toxic chemicals and gases like methane that could explode with sparks.
, plus rising construction resource costs and soaring land values those rose by 350 per cent in British Columbia.It also blamed the growing costs on the price of reaching hundreds of accommodation and compensation deals with Indigenous groups, landowners and communities affected by pipeline construction, saying such deals cost significantly more money than it first estimated in 2017.
“Maybe they didn’t know initially, but in later design and definition phases, they would drill holes on the route before construction to know what’s down there,” Gunton said. He said drilling and boring machines hit buried discarded auto parts, a washing machine and large wooden piles. In another incident, challenges digging down through the old landfill’s “cap” — thick sand and rock layers spread and flattened over garbage — triggered six-week delays, Zaborniak’s inspector reported.
The old Coquitlam landfill also features special equipment and pipes that capture, manage and allow for the release of methane gas produced by rotting garbage. A local gas company buys it.None of this should have surprised construction crews, Zaborniak added. The limited information Trans Mountain gathered and used to produce plans and cost estimates would later haunt construction crews. They often discovered terrain far different than expected.The Crown corporation submitted its latest report to justify to the Canadian Energy Regulator that it needs to increase the tolls it charges oil company customers to recoup part of its costs.
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