Mount Polley Mining Corporation

Mount Polley 尾矿库溃坝并非单一因素。独立工程小组将初始破坏追溯到未被充分表征的弱冰湖沉积层及未考虑该层行为的设计。矿山首席检查员则检查了更广的操作系统：几何陡化、趾部开挖未填、水和滩涂管理、工程师记录变更、公司监督及监管对专业人员的依赖。审计长则问及省合规与执法系统是否有效保护公众。这些发现重叠但不可互换：工程意见不是监管审计，纪律决定不是刑事判决，重启许可不是修复完成，单一水样不能证明无长期影响。2024 年 12 月《渔业法》指控仍是指控。Mount Polley 是一个问责考验，因为记录必须分层解读，每层皆有界限。

The Mount Polley tailings-storage-facility breach was not a mystery that can be reduced to one missed reading, one rainy season, or one regulator who failed to spot an obvious crack. The independent engineering panel traced the initiating failure to a weak glaciolacustrine foundation layer that had not been adequately characterized and to a design that did not account for how that layer would behave under the embankment. The Chief Inspector of Mines accepted a closely related physical sequence but examined a wider operating system: steepened geometry, an unfilled toe excavation, water and beach management, changing engineers of record, corporate oversight, and the regulator's reliance on pro