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Site C Clean Energy Project Dam Safety 1

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Site C Clean Energy Project Dam Safety 1 SITE C CLEAN ENERGY PROJECT DAM SAFETY 1 Glen Davidson, P.Eng. Director, Water Management Branch Comptroller of Water Rights Ministry of Forests, Lands and Natural Resource Operations 13 January 2014 2 Site C JRP Request That a representative of the province: Provide a presentation to the panel: • “giving a brief overview of BC dam safety program”, • And explain “how the Project was reviewed from a dam safety perspective.” “...and be able to answer possible questions from the panel.” 3 Overview of Presentation Water Act and BC Dam Safety Regulation Dam Safety in BC Application to Site C Revelstoke Dam During Construction 4 Water Law in British Columbia 5 Water Act & Site C Site C could be authorized and regulated under the Water Act Water diversion, storage, operations, construction and dam safety would be regulated BC Dam Safety Regulation is under the Water Act 6 Purpose of BC Dam Safety Program Minimize risks associated with dams to: People Environment Brilliant Dam Cultural Values Infrastructure & Property Economy 7 Regulated Dams in BC Failure Consequence Classifications Extreme 40 Very High 54 High 257 Significant 555 Low 694 TOTAL 1600 8 COQUITLAM DAM CONSTRUCTION How Successful is Dam Safety in BC? Extreme consequence dam has never failed in BC On average 1 dam failure per year Most recent significant failure was Testalindin (2010) Large dams have failed in other parts of the world so there is a need for vigilance One death in BC from a dam failure (Union Bay, 1912) 9 Dam Safety Program Components Project Review & Approval Compliance Enforcement Emergency Planning & Response BENNETT DAM 10 Recent Reviews of Major Projects BC Hydro Columbia Power Corporation • Coquitlam Dam Rebuild • Arrow Lakes Generating Station • Revelstoke Upgrade • Brilliant Upgrade & Expansion • Mica Upgrade • Waneta Upgrade & Expansion • Ruskin Rehabilitation Independent Power Producers • John Hart Gen Stn Replacement • Long Lake Rebuild Capital Regional District • Forest Kerr • Sooke Upgrade • East Toba • Montrose Creek Metro Vancouver • Seymour Falls Upgrade Rio Tinto Alcan • Kemano Upgrade 11 Dam Approval Process in BC Based on Preliminary Design MICA DAM Environmental Assessment Water Licence Based on Detailed Design Review of Dam Safety Leave to Commence Construction 12 Project Review Resources Internal capacity Consultant to the Comptroller Independent Engineer Technical Advisory Boards 13 WANETA DAM EXPANSION PROJECT Next Steps: Water Licence BC Environmental Assessment Certificate BC Hydro provides additional supporting documentation Additional consultation as required Water Licence application adjudication 14 Next Steps: Review of Design Meets design targets Sensitivity analysis Operation and maintenance procedures Emergency Preparedness Plan Owner’s dam safety management program 15 Criteria Applied to Review Water Act BC Dam Safety Regulation Water Licence Canadian Dam Association – Dam Safety Guidelines and Technical Bulletins International Commission on Large Dams – Technical Bulletins Best practices of industry 16 Authorizations Preliminary design and drawings: Water Licence grants rights and authorizes “works” Detailed design and drawings: Leave to Commence Construction issued by an Engineer under the Water Act Construction and Testing Complete: Leave to Commence Operation issued 17 Dam Safety Doesn’t End with Construction! Dam owners must: Safely operate and maintain works Meet obligations set out in Regulation Report annually on compliance Address new safety issues as they arise 18 Ruskin Dam Dam Safety Doesn’t End with Construction! BC Dam Safety Program undertakes: Annual Dam Owner Compliance Monitoring Dam audits Enforcement Emergency Planning & Response Ensure current best practices, guidelines and standards 19 Our Role with Site C to Date Water Licence application has been received Updated regularly on progress Reviewed Environmental Impact Statement Attended Technical Advisory Board report-outs Attended Internal Design Review report-out Viewed hydraulic model 20 Questions? Revelstoke Dam 21 .
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